Prof. Dr. Christoph Kleinn | Homepage

Prof. Dr. Christoph Kleinn
Georg-August-University Göttingen
Faculty of Forest Sciences and Forest Ecology
Burckhardt-Institute
Chair of Forest Inventory and Remote Sensing
Büsgenweg 5
37077 Göttingen

Room: 1.117

Phone: +49 [0]551 39-23472
Fax: +49 [0]551 39-29787

Email: CKleinn@gwdg.de
Web: www.uni-goettingen.de/forest-inventory

↑ Education	Education and specialization Academic appointments Other professional experience

↑ Education and specialization
1978 - 1984	Studies in Forest Sciences, Albert-Ludwigs-Universität Freiburg (Diploma 1984)
1991	Dr. rer. nat. in Forest Sciences, Albert-Ludwigs-Universität Freiburg
1998	Habilitation in Forest Inventory and Forest Biometry, Albert-Ludwigs-Universität Freiburg

↑ Academic appointments
1987 - 1991	Research Associate, Section of Forest Biometry, Albert-Ludwigs-Universität Freiburg
1991 - 1996	Assistant Professor (Wissenschaftlicher Assistent C1), Section of Forest Biometry, Albert-Ludwigs-Universität Freiburg
1997 - 2001	Associate Professor, Head of Biostatistics Section, CATIE (Tropical Agricultural Research and Higher Education Center), Costa Rica
since 2002	Professor of Forest Inventory and Remote Sensing, Georg-August-Universität, Göttingen

↑ Other professional experience
1985 - 1987	Software developer at Computer Center of the University Hospital Freiburg
from 1988	Short Term Assignments as a Consultant in natural resources assessments projects for FAO, GTZ, FINIDA, WWF, FSL, Consulting Companies from Germany, Finland, Italy, and private companies in Brazil, Costa Rica, Chile, China, Colombia, Cyprus, Honduras, Guatemala, Colombia, Indonesia, Laos, Malawi, Mozambique, Nepal, Thailand, The Philippines, Switzerland, Zambia

↑ Academic activities	Key research expertise Other academic activities

↑ Key research expertise
Optimization of natural resources inventory, monitoring and assessment Statistical sampling and response design techniques to improve the efficiency of natural resource inventories Sampling techniques for the assessment of the tree resource outside the forest and of non-timber forest products Sample based estimation of elements of biodiversity, including the estimation of species richness and the estimation of metrics to describe the diversity of fragmented landscapes Forest mensuration techniques Forest biomass modeling and estimation approaches Research into the further development of algorithms for the efficient use of remote sensing techniques in for natural resources assessment and land use planning Statistical research methods and planning of scientific studies: biostatistics, experimental design, sampling techniques The role of data and information for decision making on economic questions (in smaller area natural resource information) and decision making in policy processes (in larger area natural resource information like national or global forest assessments)
↑ Other academic activities
Head of an evaluation team for the Advisory Service of International Agricultural Research (BEAF) of the German Ministry for International Cooperation (BMZ) (since 2006) Peer reviewer for leading forest research journals (Forest Science, Forest Ecology and Management, Canadian Journal of Forest Research, European Journal of Forest Science, Scandinavian Journal of Forest Science, and others) Peer reviewer for funding agencies in Germany, Belgium, Costa Rica, Sweden Scientific Advisor to the International Foundation for Science (IFS) since 1997 Organizer and co-organizer of scientific congresses (Göttingen GIS and Remote Sensing Days GGRS in 2004 and 2006, 1999 conference on long-term observations in forest research, Costa Rica) Involvement as lead author in the development of a knowledge reference for National Forest Assessments (http://www.fao.org/forestry/site/NfaKnowledgeRef/en/) and for the Assessment of Non-Wood Forest Products – NWFP (3 volumes to be published in the NWFP series of FAO) Coordinator for the academic partnership program between the Faculty of Forestry at Georg-August-Universität Göttingen and the forestry faculty of the Universidad Autónoma de Nuevo León in Linares, México Coordinator for the academic partnership program and the DAAD funded exchange program between the Faculty of Forestry at Georg-August-Universität Göttingen and the forestry faculties of Universidad Austral de Chile in Valdivia and Universidad de Concepción, Chile. Ongoing (2007): development of a joint MSc degree program between these three forestry faculties Member of the Faculty Board (since 2003), Faculty Planning Commission (since 2005) and other caculty commissions in the Forestry Faculty at Georg-August-Universität Göttingen

↑ Publications	[In preparation] Journal papers Proceedings volumes Book chapters Conference papers Papers in technical series Habilitation Thesis

↑ Journal papers 2024 Bazezew M N, N Griese, L Fehrmann, C Kleinn, N Nölke. 2024. Modeling the horizontal distribution of tree crown biomass from terrestrial laser scanning data. Science of the Total Environment, 952, 175377. DOI: 10.1016/j.scitotenv.2024.175377. Bazezew M N, L Fehrmann, C Kleinn and N Nölke. 2024. Modeling a new taper curve and from factor of tree branches using terrestrial laser scanning. Forestry: An International Journal of Forest Research, 2024: 1-18. DOI: 10.1093/forestry/cpad064. 2023 Suarez-Rubio M, P Bates, T Aung, N Hlaing, S Oo, Y Htun, S Mar, A Myint, T Wai, P Mo, L Fehrmann, N Nölke, C Kleinn, S Renner. 2023. Bird diversity along an urban to rural gradient in large tropical cities peaks in mid-level urbanization. PeerJ Life and Environment, 11:e16098, DOI: 10.7717/peerj.16098. Straker A, S Politi, J Breidenbach, C Kleinn, G Pearse, R Astrup, P Magdon. 2023. Instance segmentation of individual tree crown with YOLOv5: A comparison of approaches using the ForInstance benchmark LiDAR dataset. ISPRS Open Journal of Photogrammetry and Remote Sensing, 2013, 9, 100045, 15p. DOI: 10.1016/j.ophoto.2023.100045. Wegener F, O Kranstöver, L Fehrmann, C Kleinn. 2023. Stammholzsortierung mittels terrestrischen Laserscannings (TLS). AFZ DerWALD, 17, 28-31. Tao J, M Freudenberg, C Kleinn, A Ecker, N Nölke. 2023. The Impacts of Quality-Oriented Dataset Labeling on Tree Cover Segmentation Using U-Net: A Case Study in World View-3 Imagery. Remote Sensing 2023, 15(6), 1691. DOI: 10.3390/rs15061691. Liu W, J Zhang, Y Yan, P Beckschäfer, C Kleinn, G Dossa, J Huai, D Zhai, L Song. 2023. Encouraging the reconversion of rubber plantations by developing a combined payment system. Global Ecology and Conversation 2023, 43. DOI: 10.1016/j.gecco.2023.e02415. 2022 Nölke N, L Fehrmann, T Plieninger and C Kleinn. 2022. Categorization of green and grey infrastructure complexity in the rural-urban interface of Bengaluru, India: an unsupervised volumetric approach with relevance for urban quality. Urban Ecosystems 2022. DOI: 10.1007/s11252-022-01300-0 Rieker M, J Calólonico, M Á Castillo-Santiago, A Galicia, C Kleinn, M Martínez-Salas, E Mondragón, M A Mora, L J Ramos, C H Ramos and S A Villlela. 2022. Mexico's Forest Diversity: Common Tree Special and Proposed Forest-Vegetation Provinces. Forests 2022, 13, 1598. DOI: 10.3390/f13101598. Divakara B N, C U Nikitha, N Nölke, V P Tewari and C Kleinn. 2022. Tree Diversity and Tree Community Composition in Northern Part of Megacity Bengaluru, India. Sustainbility 2022, 14, 1295. DOI: 10.3390/su14031295. 2021 Müller S, M M Gossner, C Penone et al. (C Kleinn and 18 more). 2022. Land-use intensity and landscape structure drive the acoustic composition of grasslands. Agriculture, Ecosystems and Environment, 328, 107845. DOI: 10.1016/j.agee/2021.107845. Zhu Z, C Kleinn, N Nölke. 2021. Assessing tree crown volume — a review. Forestry, 2021, 94, 18-35. DOI: 10.1093/forestry/cpaa037. Bazezew M N, A T Belay, S T Guda and C Kleinn. 2021. Developing Maize Yield Predictive Models from Sentinel-2 MSI Derived Vegetation Indices: An Approach to an Early Warining System on Yield Fluctuation and Food Security. PFG - Journal of Photogrammetry, Remote Sensing and Geoinformation Science, PFG 89 (2021). DOI: 10.1007/s41064-021-00178-5. Paudel P, P Beckschäfer and C Kleinn. 2021. Impact of training on different observers in forest inventory. Banko Janakari, 31(1), 12-22. DOI: 10.3126/banko.v31i1.37338. Antúnez P, EA Rubio-Camacho, C Kleinn. 2021. Prueba de hipóteis en la investigació foresta, agropecuaria y en laecología: retos y malentendidos sobre el uso de los niveles de significancia de 0.05 y 0.01 (Hypothesis testing in forestry, agriculture and ecology: Use and overuse of the 0.05 and 0.01 significance levels. Ecosistema Y Recursos Agropecuarios, 8(1):e2616. DOI: 10.19136/era.a8n1.2616. Pérez-Cruzado C, C Kleinn, P Magdon, J G Álvarez-González, S Magnussen, L Fehrmann and N Nölke. 2021. The Horizontal Distribution of Branch Biomass in European Beech: A Model Based on Measurements and TLS Based Proxies. Remote Sensing, 13:1041. DOI: 10.3390/rs13051041. 2020 Kleinn C, G Kändler, H Polley, T Riedel and F Schmitz. 2020. The National Forest Inventory in Germany: Responding to Forest-Related Information Needs. Allgemeine Forst- und Jagdzeitung, 191(5/6): 97-118. DOI: 10.23765/afjz0002062. Kleinn C, S Magnussen, N Nölke, P Magdon, J G Álvarez-González, L Fehrmann and C Pérez-Crusado. 2020. Improving precision of field inventory estimation of aboveground biomass through an alternative view on plot biomass. Forest Ecosystems, 7:57. DOI: 10.1186/s40663-020-00268-7. De Cauwer V, H Beeckman, C Kleinn, M Moses, A Nott, T Seifert and B Muys. 2020. Improving the knowledge base for tropical dry forest management in southern Africa: Regional volume models for Pterocarpus angolensis. Forest Ecology and Management, 477, 118485. DOI: 10.1016/j.foreco.2020.118485. Fehrmann L, S Staupendahl, C Kleinn, H Fuchs, P Magdon. 2020. Business Intelligence Tools zur Nutzung von Waldinventurdaten. AFZ DerWald, 15, 43-46. Nölke N, M Freudenberg, C Kleinn, H. Fuchs, P Magdon. 2020. Baumartenerkennung mithilfe von künstlicher Intelligenz (KI). AFZ DerWald, 15, 40-42. Magdon P, L Fehrmann, H Fuchs, C Kleinn, K Staupendahl. 2020. Fernerkundungsbasierte Bestandesinventur. AFZ DerWald, 15, 36-39. Fehrmann L, P Magon, H Fuchs, K Staupendahl, C Kleinn. 2020. Optimierung von Design-Elementen der Betriebsinventur. AFZ DerWald, 15, 32-35. Staupendahl K, L Fehrmann, H Fuchs, C Kleinn, P Magdon. 2020. Neue Wege in der Forsteinrichtung. AFZ DerWald, 15, 27-31. Fuchs, H, J Baaske, P Magdon, H-J Spors, C Kleinn. 2020. Drohnengestützte Ermittlung von Wildschweinumbruch. AFZ DerWald, 14, 24-26. Neeff T, E A Steel, C Kleinn, N D Hung, N N Bien, P O Cerutti and P Moutinho. 2020. How forest data catalysed change in four successful case studies. Journal of Environmental Management, 271:110736. DOI: 10.1016/j.jenvman.2020.110736. Zhu Z, C Kleinn, N Nölke. 2020. Towards Tree Green Crown Volume: A Methodological Approach Using Terrestical Laser Scanning. Remote Sensing, 12:1841. DOI: 10.3390/rs12111841. Magnussen S, C Kleinn, L Fehrmann. 2020. Wood volume errors from measured and predicted heights. European Journal of Forest Research. DOI: 10.1007/s10342-020-01257-9. 2019 Graf W, C Kleinn, P Schall, T Nauss, F Detsch and P Magdon. 2019. Analyzing the relationship between historic canopy dynamics and current plat species diversity in the herb layer of temperate forests using long-term Landsat time series. Remote Sensing of Environment, 232:111305. DOI: 10.1016/j.rse.2019.111305. Jha R K, N Nölke, B N Diwakara, V P Tewari and C Kleinn. 2019. Differences in tree species diversity along the rural-urban gradient in Bengaluru, India. Urban Forestry & Urban Greening, 46:126464. DOI: 10.1016/j.ufug.2019.126464. Kukunda C B, P Beckschäfer, P Magdon, P Schall C Wirth and C Kleinn. 2019. Scale-guided mapping of forest stand structural heterogeneity from airborne LiDAR. Ecological Indicators, 102, 410-425. DOI: 10.1016/j.ecolind.2019.02.056. Freudenberg M, N Nölke, A Agostini, K Urban, F Wörgötter and C Kleinn. 2019. Large Scale Palm Tree Detection In High Resolution Satellite Images Using U-Net. Remote Sensing, 11:312. DOI: 10.3390/rs11030312. Fehrmann L, C B Kukunda, N Nölke, S Schnell, D Seidel, S Magnussen, C Kleinn. 2019. A unified framework for land cover monitoring based on a discrete global sampling grid (GSG). Environmental Monitoring and Assessment, 191:46. DOI: 10.1007/s10661-018-7152-y. 2018 Magdon P, E Gonzaléz-Feirrero, C Pérez-Crusado, E Setia Purnama, D Sarodja and C Kleinn. 2018. Evaluating the Potential of ALS Data to Increase the Efficiency of Aboveground Biomass Estimates in Tropical Peat-Swamp Forests. Remote Sensing, 10:1344. DOI: 10.3390/rs10091344. Kwame T A, N Nölke, M Freudenberg, B N Diwakara, V P Tewari and C Kleinn. 2018. Spatial resolution and landscape structure along an urban-rural gradient: Do they relate to remote sensing classification accuracy? – A case study in the megacity of Bengaluru, India. Remote Sensing Applications: Society and Environment, 12, 89-98. DOI: 10.1016/j.rsase.2018.10.003. Kukunda C B, J Duque-Lazo, E González-Ferreiro, H Thaden, C Kleinn. 2018. Ensemble classification of individual Pinus crowns from multispectral satellite imagery and airborne LiDAR. International Journal of Applied Earth Observation and Geoinformation, Volume 65 (March 2018), 12-23. DOI: 10.1016/j.jag.2017.09.016. 2017 Vonrüti M, A Spasojevic, N Nölke, T Kneib, C Kleinn. 2017. Comparing canopy leaf temperature of three Central European tree species based on simultaneous confidence bands for penalized splines. Environmental and Ecological Statistics, 24(3), 385-398. DOI: 10.1007/s10651-017-0375-1. Tang X, L Fehrmann, F Guan, D I Forrestor, R Guisasola, C Pérez-Cruzado, T Vor, Y Lu, J G Álvarez-González and C Kleinn. 2017. A generalized algebraic difference approach allows an improved estimation of aboveground biomass dynamics of Cunninghamia lanceolata and Castanopsis sclerophylla forests. Annals of Forest Science. DOI: 10.1007/s13595-016-0603-0. 2016 Drescher J, K Rembold, K Allen, P Beckschäfer, D Buchori, Y Clough, H Faust, A M Fauzi, D Gunawan, D Hertel, B Irawan, I N S Jaya, B Klarner, C Kleinn, A Knohl, M M Kotowska, V Krashevska, V Krishna, C Leuschner, W Lorenz, A Meijide, D Melati, M Nomura, C Pérez-Cruzado, M Qaim, I Z Siregar, S Steinebach, A Tjoa, T Tscharntke, B Wick, K Wiegand, H Kreft and S Scheu. 2016. Ecological and socio-economic functions across tropical land use systems and socio-economic functions across tropical land use systems after rainforest conversion. Philosophical Transactions of the Royal Society B,371: 20150275. DOI: 10.1098/rstb.2015.0275. Chen H, Z-F Yi, D Schmidt-Vogt, A Ahrends, P Beckschäfer, C Kleinn, S Ranjitkar and J Xu. 2016. Pushing the Limits: The Pattern and Dynamics of Rubber Monoculture Expansion in Xishuangbanna, SW China. PLOS ONE, 11(2): e0150062. DOI: 10.1371/journal.pone.0150062. Yang H, S Magnussen, L Fehrmann, P Mundhenk and C Kleinn. 2016. Two neighborhood-free plot designs for adaptive sampling of forests. Environmental and Ecological Statistics, 1-21. DOI: 10.1007/s10651-015-0339-2. 2015 Mo D, H Fuchs, L Fehrmann, H Yang, Y Lu and C Kleinn. 2015. Local Parameter Estimation of Topographic Normalization for Forest Type Classification. IEEE Geoscience and Remote Sensing Letters, 12(9): 1998-2002. DOI: 10.1109/LGRS.2015.2448937. Tang X, C Pérez-Cruzado, T Vor, L Fehrmann, J G Álvarez-González and C Kleinn. 2015. Development of stand density management diagrams for Chinese fir plantations. Forestry, 0: 1-10. DOI: 10.1093/forestry/cpv024. Schnell S, C Kleinn and G Ståhl. 2015. Monitorung trees outside forests: a review. Environmental Monitoring and Assessment, 187:600, 1-17. DOI: 10.1007/s10661-015-4817-7. Nölke N, J C Camargo García, C Kleinn and A Polle. 2015. Changes in culm surface temperature with maturity of the bamboo species Guadua angustifolia. Journal of Forestry Research (early view): 1-7 [Published online: 03 October 2015]. DOI: 10.1007/s11676-015-0152-7. Pérez-Cruzado C, L Fehrmann, P Magdon, I Cañellas, H Sixto and C Kleinn. 2015. On the site-level suitability of biomass models. Environmental Modelling & Software, 73:14-26. DOI: 10.1016/j.envsoft.2015.07.019. Tewari V P and C Kleinn. 2015. Considerations on capacity building for national forest assessment in developing countries - with a case study of India. International Forestry Review, 17(2):244-254. DOI: 10.1505/146554815815500633. Yim J-S, M-Y Shinb, Y Sona and C Kleinn. 2015. Cluster plot optimization for a large area forest resource inventory in Korea. Forest Science and Technology, 11(2): 1-8. DOI: 10.1080/21580103.2014.968222. Nölke N, L Fehrmann, I N Surati Jaya, T Tiryana, D Seidel and C Kleinn. 2015. On the geometry and allometry of big-buttressed trees - a challenge for forest monitoring: new insights from 3D-modeling with terrestrial laser scanning. iForest - Biogeosciences and Forestry, 8: 574-581. DOI: 10.3832/ifor1449-007. Seidel D, G Busch, B Krause, C Bade, C Fessel and C Kleinn. 2015. Quantification of Biomass Production Potentials from Tres Outside Forests – A Case Study from Central Germany. BioEnergy Research, 8(1). DOI: 10.1007/10.1007/s12155-015-9596-z. 2014 Schnell S, D Altrell, G Ståhl and C Kleinn. 2014. The contribution of trees outside forests to national tree biomass and carbon stocks – a comparative study across three continents. Environmental Monitoring and Assessment, 187(4197), 1-18. DOI: 10.1007/s10661-014-4197-4. Arnold F E, E Rametsteiner and C Kleinn. 2014. User-oriented national forest monitoring planning: a contribution to more policy relevant forest information provision. International Forestry Review, 16(4):389-404. DOI: 10.1505/146554814813484059. Morales-Barquero L, M Skutsch, E J Jardel-Peláez, A Ghilardi, C Kleinn and J R Healey. 2014. Operationalizing the Definition of Forest Degradation for REDD+, with Application to Mexico. Forests, 5(7):1653-1681. DOI: 10.3390/f5071653. Nölke N, P Beckschäfer, C Kleinn. 2014. Thermal canopy photography in forestry - an alternative to optical cover photography. iForest - Biogeosciences and Forestry, (early view): e2-e5 [online 2014-05-07]. DOI: 10.3832/ifor1129-007. Magdon P, Fischer C, Fuchs H, C Kleinn. 2014. Translating criteria of international forest definitions into remote sensing image analysis. Remote Sensing of Environment, 149:252-261. DOI: 10.1016/j.rse.2014.03.033. Beckschäfer P, L Fehrmann, R D Harrison, J Xu and C Kleinn. 2014. Mapping Leaf Area Index in subtropical upland ecosystems using RapidEye imagery and the randomForest algorithm. iForest - Biogeosciences and Forestry, 7:1-11. DOI: 10.3832/ifor0968-006. Fehrmann L, D Seidel, B Krause, C Kleinn. 2014. Sampling for landscape elements ? a case study from Lower Saxony, Germany. Environmental Monitoring and Assessment, 186(3):1421-1430. DOI: 10.1007/s10661-013-3464-0. 2013 Seidel D, K Albert, C Ammer, L Fehrmann and C Kleinn. 2013. Using terrestrial laser scanning to support biomass estimation in densely stocked young tree plantations. International Journal of Remote Sensing, 34(24):8699-8709. DOI: 10.1080/01431161.2013.848308. Stangler D, S Schreiner, Y Lu, S Hoffmann, L Fehrmann, F Makeschin, H Spieker and C Kleinn. 2013. Chinas Forstwirtschaft vor großen Herausforderungen. AFZ?DerWald, 68(13):32-34. [Download, PDF] Beckschäfer P, D Seidel, C Kleinn and J Xu. 2013. On the exposure of hemipherical photographs in forests. iForest - Biogeosciences and Forestry, 6:228-237. DOI: 10.3832/ifor0957-006. Beckschauml;fer P, P Mundhenk, C Kleinn, Y Ji, D Yu and R Harrison. 2013. Enhanced Structural Complexity Index: An Improved Index for Describing Forest Structural Complexity. Open Journal of Forestry, 3:23-29. DOI: 10.4236/ojf.2013.31005. 2012 Magdon P and C Kleinn. 2012. Uncertainties of forest area estimates caused by the minimum crown cover criterion. Environmental Monitoring and Assessment, 185:5345?5360. DOI: 10.1007/s10661-012-2950-0. Schnell S, C Kleinn and J G Álvarez González. 2012. Stand Density Management Diagrams for Three Exotic Tree Species in Smallholder Plantations in Vietnam. Small-scale Forestry, 11(4):509-528. DOI: 10.1007/s11842-012-9197-z. Fehrmann L, T G Gregoire and C Kleinn. 2012. Triangulation based inclusion probabilities: a design-unbiased sampling approach. Environmental and Ecological Statistics, 19(1):107-123. DOI: 10.1007/s10651-011-0177-9. 2011 Weisser W W und C Kleinn. 2012. Waldbesitzer und Wissenschaft diskutieren \| Biodiversitauml;tsforschung. AFZ?DerWald, 1:25. Fischer C, C Kleinn, L Fehrmann, H Fuchs and O Panferov. 2011. A national level forest resource assessment for Burkina Faso ? A field based forest inventory in a semiarid environment combining small sample size with large observation plots. Forest Ecology and Management, 262(8):1532-1540. DOI: 10.1016/j.foreco.2011.07.001. Magnussen S, L Fehrmann and W J Platt. 2011. An adaptive composite desity estimator for distance sampling. European Journal of Forest Research DOI: 10.1007/s10342-011-0502-8. Ribeiro S, L Fehrmann, C P B Soares, L A Goncalves Jacovine, C Kleinn and R de Oliveira Gaspar. 2011. Above- and belowground biomass in a Brazilian Cerrado. Forest Ecology and Management, 262(3):491-499. DOI: 10.1016/j.foreco.2011.04.017. Tilahun M, B Muys, E Mathijs, C Kleinn, R Olschewski and K. Gebrehiwot. 2011. Frankincense yield assessment and modeling in closed and grazed Boswellia papyrifera woodlands of Tigray, Northern Ethiopia. Journal of Arid Environments, 75(8):695-702. Lam T Y, C Kleinn and B Coenradie. 2011. Double sampling for stratification for the monitoring of sparse tree populations: the example of Populus euphratica Oliv. Forests at the lower reaches of Tarim River, Southern Xinjiang, China. Environmental Monitoring and Assessment, 175(1-4):45-61. DOI: 10.1007/s10661-010-1492-6. Kleinn C, G Kauml;ndler and S Schnell. 2011. Estimating forest edge length from forest inventory sample data. Canadian Journal of Forest Research, 41(1):1-10. DOI: 10.1139/X10-182. Yang H, C Kleinn, L Fehrmann, Shouzheng Tang and S Magnussen. 2011. A new design for sampling with adaptive sample plots. Environmental and Ecological Statistics, 18(2):223-237. DOI: 10.1007/s10651-009-0129-9. 2010 Kleinn C, G Stauml;hl, L Fehrmann and A Kangas. 2010. Issues in forest inventories as an input to planning and decision processes. Allgemeine Forst- und Jagdzeitung, 181(11/12):205-210. Camargo García J C and C Kleinn. 2010. Length curves and volume functions for guadua bamboo (Guadua angustifolia Kunth) for the coffee region of Columbia. European Journal of Forest Research, 129(6):1213-1222. DOI: 10.1007/s10342-010-0411-2. Magnussen S, B Smith, C Kleinn and I F Sun. 2010. An urn model for species richness estimation in quadrat sampling from fixed-area populations. Forestry, 83(3):293-306. DOI: 10.1093/forestry/cpq012. Kleinn C, F Vilčko, L Fehrmann und J Hradeztky. 2009. Zur Auswertung der 6-Baum-Probe. Allgemeine Forst- und Jagdzeitung, 180(11/12):228-237. 2009 Fuchs H, P Magdon, C Kleinn and H Flessa. 2009. Estimating aboveground carbon in a catchment of the Siberian forest tundra: Combining satellite imagery and field inventory. Remote Sensing of Environment, 113(3):518-531. DOI: 10.1007/s10651-009-0129-9. 2008 Magnussen S, N Picard and C Kleinn. 2008. A gamma-Poisson distribution of the point to the k nearest event distance. Forest Science, 54(4):429-441. Magnussen S, C Kleinn and N Picard. 2008. Two new density estimators for distance sampling. European Journal of Forest Research, 127(3):213-214. DOI: 10.1007/s10342-007-0197-z. Lam TY and C Kleinn. 2008. Estimation of tree species richness from large area forest inventory data: evaluation and comparison of Jackknife estimators. Forest Ecology and Management, 255(3/4):1002-1010. DOI: 10.1016/j.foreco.2007.10.007. Fehrmann L, A Lehtonen, C Kleinn and E Tomppo. 2008.Comparison of linear and mixed-effect regression models and a k-nearest neighbour approach for estimation of single-tree biomass. Canadian Journal of Forest Research, 38(1):1-9. DOI: 10.1139/X07-119. Kleinn C und F Vilčko. 2008. Anmerkungen zur Anwendung der 6-Baum-Stichprobe. AFZ?DerWald, 63(2 ):72-73. 2007 Nemitz D, S Kunth, C Kleinn. HW Fischer und M Bücking. 2007. Ein Vergleich von zwei methodischen Konzepten zur Kartierung von Feldgehölzen in mittelgroßen Untersuchungsgebieten. Allgemeine Forst- und Jagdzeitung, 178(7/8):135-141. Tilahun M, R Olschewski, C Kleinn and K Gebrehiwot. 2007. Economic analysis of closing degraded Boswellia Papyrifera dry forest from human interventions ? a study from Tigray, Northern Ethiopia. Forest Policy and Economics, 9(8):996-1005. DOI: 10.1016/j.forpol.2006.09.004. 2006 Fehrmann L and C Kleinn. 2006. General considerations about the use of allometric equations for biomass estimation on the example of Norway spruce in central Europe. Forest Ecology and Management, 236(2-3):412-421. DOI: 10.1016/j.foreco.2006.09.026. Kleinn C and F Vilčko. 2006. A new empirical approach for estimation in k-tree sampling. Forest Ecology and Management, 237(1-3):522-533. DOI: 10.1016/j.foreco.2006.09.072. Kleinn C and F Vilčko. 2006. Design unbiased estimation for point to tree distance sampling. Canadian Journal of Forest Research, 36(6):1407-1414. DOI: 10.1139/X06-038. Kleinn C and D Morales. 2006. An inventory of Guadua bamboo (Guadua angustifolia) in the coffee region of Colombia. European Journal of Forest Research, 125(4):361-368. DOI: 10.1007/s10342-006-0129-3. 2005 Kleinn C und F Vilčko. 2005. Ein Vergleich von zwei methodischen Konzepten für die Grundgesamtheit von Probeflächen bei Waldinventuren. AFJZ. 176(4):68-74. Kleinn C, C Ramírez, P Holmgren, G Chavez. 2005. A national forest resources assessment for Costa Rica based on low intensity sampling. Forest Ecology and Management. 210:9-23. 2004 Hererera-Fernández B, JJ Campos, C Kleinn. 2004. Site productivity estimation using height-diameter relationships in Costa Rican secondary forests. Invest Agrar: Sist Recur For, 13(2):295-303. 2003 Bhandari N and C Kleinn. 2003. On the sustainable management of non-timber forest products (NTFPs) in the High Mountains in Nepal. ETFRN News, 38/03, p. 33-35. 2002 Kleinn C y Morales D. 2002. Consideraciones metodológicas al establecer parcelas permanentes de observación en bosque natural o plantaciones forestales. Revista Forestal Centroamericana, No 39-40, Julio-Diciembre 2002. Centro Agronómico Tropical de Investigación y Enseñanza (CATIE). Turrialba, Costa Rica. Kleinn C. 2002. New technologies and methodologies for national forest inventories. Unasylva, 210, Vol. 53 2002/3. p. 10-15. Kleinn C, B Traub and C Hoffmann. 2002. A note on the slope correction and the estimation of the length of line features. Canadian Journal of Forest Research, 32(4):751-756. Kleinn C. 2002. ¿Árboles fuera del bosque? Revista Forestal Centroamericana, No.37. p. 74. Kleinn C, L Corrales, D Morales. 2002. Large area forest cover estimates in the tropics ? the case of Costa Rica. Environmental Monitoring and Assessment, 73(1):17-40. 2001 L Rojas, C Godoy, P Hanson, C Kleinn and L Hilje. 2001. Hopper (Homoptera: Auchenorrhyncha) diversity in shaded coffee systems of Tueeialba, Costa Rica. Agroforestry Systems, (53):171-177. Aguilar A, J Beer, P Vaast, F Jiménez, C Staver, C Kleinn. 2001.Desarrollo del café asociado con Eucalyptus deglupta ó Terminalia ivorensis en la etapa de establecimiento. Agroforestería en las Américas, Vol. 8 No 30, p.28-31. Casasola F, M Ibrahim, C Harvey, C Kleinn. 2001. Caracterización y productividad de sistemas silvopastoriles tradicionales en Moropotente, Estelí, Nicaragua. Agroforestería en las Américas, Vol. 8 No 30, p.17-20. Imana J, C Kleinn. 2001. Determinacao do volume de madeira em florestas de galeria. Brasil Florestal, 20(70):32-41. Kleinn C. 2001. A cautionary note on the minimum crown cover criterion in forest definitions. Canadian Journal of Forest Research, 31(2):350-356. 2000 Kleinn C. 2000. Estimating metrics of forest spatial pattern from large area forest inventory cluster samples. Forest Science, 46(4):548?557. Kleinn C, J Pérez. 2000. Consideraciones estadísticas en la investigación científica en el campo de recursos naturales. Agroforestería en las Américas, Vol. 7 No 27, p.25-30. Kleinn C and R. Davis. 2000. En el camino hacia una compilación de información forestal global. Revista Forestal Centroamericana. Abril-Junio 2000, No. 30. p.85. Kleinn C. 2000. On large area inventory and assessment of trees outside forests. Unasylva, 200 (2000/1) Vol. 51. p.3-10. Jovel J, L Hilje, C Kleinn, V Cartín, B Valverde. 2000. Movimientos diarios de Bemisia tabaci en parcelas de tomate, en Turrialba, Costa Rica. Manejo Integrado de Plagas, 55:49-55. 1999 Kleinn C, J Jovel, L Hilje. 1999. A model for assessing the effect of distance on disease spread in crop fields. Crop Protection, 18(9):609-617. López A, A Schlönvoigt, M Ibrahim, C Kleinn, M Kanninen. 1999: Cuantificación del carbono almacenado en el suelo de un sistema silvopastoril en la zona Atlántica de Costa Rica. Agroforesteria en las Américas, 6(23):51-53. Traub B, C Kleinn. 1999: Zur Erfassung von Flächenfragmentierung und struktureller Diversität (Measuring Fragmentation and Structural Diversity). Forstw. Cbl. 118 (1999), 39-50 Rojas L, C Godoy, P Hanson, C Kleinn y L Hilje.1999: Diversidad de homópteros en plantaciones de café con diferentes tipos de sombra, en Turrialba, Costa Rica. Agroforesteria en las Américas, 6(23):33-35. 1998 Traub B und C Kleinn. 1998: Quantitative Charakterisierung von Waldflächenformen. Allg. Forst-u. J.-Ztg., 168(2):30-39. 1996 Kleinn C. 1996. Ein Vergleich der Effizienz von verschiedenen Clusterformen in forstlichen Großrauminventuren. Forstw. Cbl., 115 (1996):378-390. 1995 Imana J, J Elias de Paula and C Kleinn. 1995. Wood Biomass of one Gallery Forest. Pesquisa Agropecuaria Brasileira, Brasilia 30(4):421-427. 1994 Kleinn C. 1994: Sur l'importance des définitions et des méthodes de mesure dans le recensement des surfaces - un exemple provenant de la sylviculture -. SFPT Bulletin, No 135 (Société Francaise de Photogrammétrie et Télédetection), p 26-33. Kleinn C. 1994: Comparison of the performance of line sampling to other forms of cluster sampling. Forest Ecology and Management, 68:365-373. Kleinn C und A Jost. 1994: Überlegungen zur Planung und Auswertung räumlich systematischer Stichproben. Schweizerische Zeitschrift für Forstwesen, 145(9):703-719. Kleinn C. 1994: Vergleich der Genauigkeit von Anteilsschätzungen mit Linientaxationen und Punkteclustern. Forstw.Cbl., 113:277-290. Imana J and C Kleinn. 1994: Phytosociological Position of the Natural Regeneration of the Gallery Forest at the Sao Bartolomeu River (Brazil). Res. Bull. Inst. For. Sci., Kangwon Nat'l Univ., No. 10:1-7. Kleinn C 1994. Dendrometrie und Bestandesmessung mit Lasertechnik: Neue Generation holzmesskundlicher Geräte. AFZ, 49. Jg. S. 120-121 1993 Kleinn C. 1993. Eine empirische Studie zur Genauigkeit von Flächenschätzungen mit quadratischen Punkterastern. Zeitschrift für Photogrammetrie und Fernerkundung ,6/1993:230-236. Kleinn C und S Tomter. 1993. Die Nationale Forstinventur von Norwegen. Forstarchiv, 64. Jg., S. 241-245. Kleinn C. 1993: Volumenermittlung mit Importance Sampling und Kontrollfunktionen. AFJZ, 163 Jg., S. 102-108. Kleinn C. 1993: GPS als Hilfsmittel für Forstinventuren?. AFZ, 1993, S. 715-716. 1991 Kleinn C. 1991: Zum Waldbegriff in Forstlichen Großrauminventuren. AFJZ, 162. Jg., S. 201-210. Kleinn C. 1991: Der Fehler von Flächenschätzungen unregelmäßiger Flächenformen mit Punkterastern. Forstarchiv, 62. Jg., S.21-25. 1989 Kleinn C. 1989: Überlegungen zur Berechnung von Einzelbaumvolumen mittels kubischer Spline Interpolation. AFZ, 47/1989, S. 1246-1247. ↑ Proceedings volumes Kleinn C, A Kleinn and L Fehrmann (Eds.), 2014. The Ecological and Economic Challanges of Managing Forested Landscapes in a Global Context. Proceedings of the 4th International DAAD Workshop, 16.03.-22.03.2014, Bogor and Jakarta, Indonesia. Cuvillier Verlag Göttingen, 285 pp. Fehrmann L, C Kleinn (Eds.), 2013. Forests in Climate Change Research and Policy: The Role of Forest Management and Conservation in a Complex International Setting. Proceedings of the 3rd International DAAD Workshop, 28.11.-02.12.2012, Dubai and Doha, United Arab Emirates (UAE), Qatar. Cuvillier Verlag Göttingen, 250 pp. Fehrmann L, C Kleinn (Eds.), 2012. Forests in Climate Change Research and Policy: The Role of Forest Management and Conservation in a Complex International Setting. Proceedings of the 2nd International DAAD Workshop, 01.12.-07.12.2011, Pietermaritzburg and Durban, South Africa. Cuvillier Verlag Göttingen, 293 pp. Holmgren P, C Kleinn and M Saket (Eds.). 2006. FAO NFA Working Papers No. 5. 42p. Kappas M, C Kleinn and B Sloboda (Eds.). 2006. Remote Sensing and Geographical Information Systems for Environmental Studies - Applications in Forestry. Proceedings of the 2nd GGRS Symposium, 4-6.10.2006, Göttingen. 294p. Kleinn C, Y Yongping, H Weyerhaeuser and M Stark (Eds.). 2006. Proceedings of the Sino-German Symposium 2006: The Sustainable Harvest of Non-Timber Forest Products in China - Strategies to balance economic benefits and biodiversity conservation. March 2006. 192p. Kleinn C, J Nieschulze and B Sloboda (Eds.). 2005. Remote Sensing and Geographical Information Systems for Environmental Studies - Applications in Forestry. Proceedings of the 1. Proceedings of the 1stGGRS conferenece 6-8.10.2004, Göttingen. Schriftenreihe der Forstlichen Fakultät und der Niedersächsischen Forstlichen Versuchsanstalt. Bd. 138. 407p. Sadio S, C Kleinn and T Michaelsen (Eds.). 2002. Proceedings ? Expert consultation on enhancing the contribution of trees outside forests to sustainable livelihoods. Rome 26-28 November 2001. FAO Forest Conservation, Research and Education Service, Forest Resources Division. 171p. Temu AB, G Lund, RE Malimbwi, GS Kowero, C Kleinn, Y Malende and I Kone (Eds.) 2000. Off-forest tree resources of Africa. A proceedings of a workshop held at Arusha, Tanzania, 1999. The African Academy of Sciences (AAS). 336 p. Kleinn C and R Davis (eds). 1999: Memoria del Taller sobre el Programa de Evaluación de los Recursos Forestales en once Países Latinoamericanos, CATIE, Costa Rica, May 17-21, 1999. 193p. Kleinn C and M Köhl (eds). 1999: Proceedings of the International Symposium o "Long-Term Observations and Research in Forestry?. CATIE, Costa Rica. February 23-27, 1999. 291p. Imaña J and C Kleinn (eds). 1997: Proceedings of the Symposium on Assessment and Monitoring of Forests in Tropical Dry Regions. Nov. 4-8, 1996, Brasilia. 378 p. ↑ Book chapters Lorenz, M., Varjo, J. and Bahamondez, J. 2005. Forest Assessment for changing information needs. Contributing authors: C.L. Brack, M. Clarke, M. Gillis, H. Hironen, C. Kleinn, A. Riebau, H. Sase and T. Totsuka. In Forests in the Global Balance - Changing paradigms. G. Mery, R. Alfaro, M. Kanninen and M. Loboviko (eds). IUFRO World Series Volume 17: 139 - 150. Morales D and C Kleinn. 2002. Trees Outside Forests: Costa Rica. P. 141-147 in Bellefontaine R, S Petit, M Pain-Orcet, P Deleporte and J-G Bertault. 2002. Trees outside forests ? Towards a better awareness. FAO Conservation Guide No. 35. 216p . ↑ Conference Papers Yim YS, P Magdon, C Kleinn and MY Shin. 2006. Estimation of Forest attributes by integrating of Satellite Imagery and Field plot data. p.131-140 in: Kappas M, C Kleinn and B Sloboda. 2006. Remote Sensing and Geographical Information Systems for Environmental Studies - Applications in Forestry. Proceedings of the 2nd GGRS Symposium, 4-6.10.2006, Göttingen. Yim YS, C Kleinn, MY Shin and GS Kong. 2006. Mapping of forest cover types with satellite imagery and field plot data. p.141-149 in: Kappas M, C Kleinn and B Sloboda. 2006. Remote Sensing and Geographical Information Systems for Environmental Studies - Applications in Forestry. Proceedings of the 2nd GGRS Symposium, 4-6.10.2006, Göttingen. Kleinn C. 2006. Aportando información para el desarrollo de políticas en recursos naturales - los inventarios forestales en grandes áreas: un reto para las investigación interdisciplinaria. In: Castañeda V (ed.): Coloquio Internacional: Contribución de los Humboldtianos a la investigación y el desarrollo en los países Andinos: hacia una red interdisciplinaria. Lima 8-10.03.2006. p.281-299. Kleinn C and G Ståhl. 2006. We generate sound information on the forest resource: But does our data and information really matter? - a discussion paper. Keynote Address at 8th Annual FIA Meeting, Monterey CA, 16-19.10.2006. Fehrmann L and C Kleinn. 2006. Comparison of the k-NN approach and regression techniques for single tree biomass estimation. Paper at the 8th FIA Symposium. Monterey, California. 16-19.Oct. 2006. Fehrmann L and C Kleinn. 2006. General considerations on the use of allometric models for single tree biomass estimation. Paper at the 8th FIA Symposium. Monterey, California. 16-19.Oct. 2006. Kleinn C and G Ståhl. 2006. We generate sound information on the forest resource: but does our data and information really matter? - a discussion paper -.Keynote Paper at the 8th FIA Symposium. Monterey, California. 16-19.Oct. 2006. Kleinn C. 2006. Forest area estimation in large area forest monitoring. Invited paper at the Expert Consultation on TREES3. Joint Research Center of the European Communiteis. 28-29.09.2006, Ispra, Italien. Kleinn C und A Buschmann. 2006. Inventur und Kartierung zur Beschaffung von Information über Gehölzstrukturen im Offenland. Vortrag auf der Forstwissenschaftlichen Tagung. 20-22.09.2006, Tharandt. Kleinn 2006. Forest inventories: principles, experiences and lessons for NWFP inventories. Expert Workshop on Resource Assessment. 14 ? 17.09.2006, International Academy for Nature Conservation Isle of Vilm, Germany. Kleinn C and J Wong. 2006. Compiling a handbook on NWFP inventories: A project of FAO´s Forestry Department. Expert Workshop on Resource Assessment. 14?17.09.2006, International Academy for Nature Conservation Isle of Vilm, Germany. Kleinn C. 2005. On data and sampling. Paper at the Symposium and Workshop: Trees for health ? forever. Implementing sustainable medicinal bark use in Southern Africa. Willow Park, Johannesburg, South Africa, 01 - 03.11.2005 Kleinn C and Morales D. 2005. Assessment of fragmented forest mosaics: lessons learned from inventory projects in Latin America. In: Innes J.L, Edwards I.K and Wilford D.J. 2005. Forest in the Balance: Abstracts of the IUFRO World Congress: Linking tradition and Technology XXII , 8-13 August 2005. Brisbane, Australia. International Forestry Review Vol. 7 (5), August 2005. Commonwealth forestry association. pp 204 Morales D and Kleinn C. 2005. Inventory of Guadua bamboo: a complex and special case of forest mosaic in the coffee region of Colombia. In: Innes J.L, Edwards I.K and Wilford D.J. 2005. Forest in the Balance: Abstracts of the IUFRO World Congress: Linking tradition and Technology XXII , 8-13 August 2005. Brisbane, Australia. International Forestry Review Vol. 7 (5), August 2005. Commonwealth forestry association pp 44. Kleinn C and F Vilčko. 2005. On estimation in k-tree sampling. Proceedings of the 7th FIA Symposium. Portland, Maine. 03-06.Oct. 2005. Fehrmann L and C Kleinn. 2005. An approach to application of the knn-technique to single tree biomass estimation. Proceedings of the 7th FIA Symposium. Portland, Maine. 03-06.Oct. 2004. Lam T Y and C Kleinn. 2005. Comparing approaches species richness estimation from large area forest inventory data. Proceedings of the 7th FIA Symposium. Portland, Maine. 03-06.Oct. 2004. Gadow K v and C Kleinn. 2004. Forest Management: Science-Based and Understandable. Keynote Paper in: Peterson CE and Maguire DA (Eds). 2004. Balancing Ecosystem Values: Innovative Experiments for Sustainable Forestry. Proceedings of an International Workshop August 15-20, 2004, Portland, Oregon. P.15-24 Buschmann A and C Kleinn. 2004. Modeling habitat suitability for red kite ? an empirical approach. p235-232 in: Kleinn C, J Nieschulze, B Sloboda. 2005. Remote Sensing and Geographical Information Systems for Environmental Studies - Applications in Forestry. Proceedings of the 1stGGRS days, 6-8.10.2004, Göttingen. Schriftenreihe der Forstlichen Fakultät und der Niedersächsischen Forstlichen Versuchsanstalt. Bd. 138. 407p. Kleinn C and D Morales. 2005. Obtaining resource information on trees outside the forest: Experiences with inventory approaches in Central America. p.501-508 in: Tewari VP and RL Srivastava. 2005. Multipurpose trees in the tropics: Management and Improvement Strategies?. Arid Forest Research Institute, Jodhpur, India. 760p. Morales D, C Kleinn, S Kunth. 2005. Changes of tree crown cover on pasture land - a case study from Costa Rica. p.501-508 in: Tewari VP and RL Srivastava. 2005. Multipurpose trees in the tropics: Management and Improvement Strategies?. Arid Forest Research Institute, Jodhpur, India. 760p. Morales D, C Kleinn. 2004. Inventario de las existencias de Guadua angustifolia en el Eje Cafetero de Colombia. Memoria del Simpósio Internacaional Guadua 2004, Pereira, Colombia, 27.09.-02.10.2004. 23p. Cleemput S, B Muys, C Kleinn, M Janssens. 2004. Biomass Estimation Techniques for Enclosures in a Semi-Arid Area ? A Case Study in Northern Etiopía. Deutscher Tropentag 2004. Book of Abstracts. P. 217. Morales D, C Kleinn. 2004. Guadua Bamboo (Guadua angustifolia) ? Inventory in the Coffee Region of Colombia. Deutscher Tropentag 2004. Book of Abstracts. P. 157. Cleemput S, Muys B, Kleinn C. 2004. Biomass estimation techniques for exclosures in a semi- arid area: a case study in Northern Ethiopia. Deutscher Tropentag 2004, Berlin Böttcher K, C Kleinn. 2003. Using crown surface models for the extraction of forest inventory information: first experiences with study areas in the State of Mecklenburg-Vorpommern (Germany). In: Hyyppä J, E Naesset, H Olsson, T Granqvist Paleen and H Reese. 2003. Processdings of the Sandlaser Scientific Workshop on Airborne Laser Scanning of Forests. P. 189- 197. Kleinn C, D Morales. 2002. Information on Trees Outside the Forest: What do we know and why are we possibly interested? P65-74 in: Sadio S, C Kleinn, T Michaelsen (Eds.). 2002. Proceedings ? Expert consultation on enhancing the contribution of trees outside forests to sustainable livelihoods. Rome 26-28 November 2001. FAO Forest Conservation, Research and Education Service, Forest Resources Division. 171p Kleinn C. 2002. Review and Discussion of new technological and methodological options for national forest inventories. Invited Background Paper for the UN-ECE/FAO Expert Consultation on Global Forest Resources Assessments July 1-5, 2002, Kotka, Finnland. Kleinn C, B Traub. 2001. Keynote paper: Describing landscape pattern by sampling methods. IUFRO Conference "Collecting and analysing information for sustainable forest management and biodiversity monitoring with special reference to Mediterranean Ecosystems". Sicily, Italy, December 2001. Kleinn C. 2001. Trees Outside the Forest: what do we know and why are we possibly interested? Invited paper at: Expert Consultation on Trees Outside Forests: Enhancing Trees Outside Forests to Sustainable Livelihoods 26-28 November 2001, FAO HQ, Rome Italy. Kleinn C, D Morales, C Ramírez. 2001. Large Area Inventory of Tree Resources Outside the Forest: What is the Problem? IUFRO 4.11 Conference, Greenwich 2001: Forest Biometry, Modelling and Information Science. June 26-29, 2001. Morales D, C Kleinn. 2001. Tree resources on pasture land in Costa Rica. Proceedings of IUFRO International Symposium on Agroforestry and Lifestock Production in Latin America, San José, Costa Rica, April 2- 9, 2001. P. 117-121. Morales D, C Kleinn. 2000. Inventario de árboles fuera del bosque. Congreso Forestal Centroamericano. Nicaragua. 15-17.11.2000. 10p. Ramírez C, C Kleinn, M Saket, G Chaves. 2000. Inventario forestal global (The Global Forest Survey): el estudio piloto en Costa Rica. Congreso Forestal Centroamericano. Nicaragua. 15-17.11.2000. 7p. Kleinn C. 2000. Long term observations and research in forestry. IUFRO World Congress, Kuala Lumpur. August 7-12, 2000. Kleinn C. 2000. Tree resources outside the forest: how to assess a scattered heterogeneous resource. IUFRO World Congress, Kuala Lumpur. August 7-12, 2000. Kleinn C. 2000. Estimation of fragmentation metrics from cluster samples in large area forest inventories. Spatial Accuracy Symposium, Amsterdam July 2000. Traub B, C Kleinn. 2000. The potential of data from national forest inventory in a landscape ecological context. Spatial Accuracy Symposium, Amsterdam July 2000. Morales D, C Kleinn. 2000. El recurso arbóreo fuera del bosque. Valdivia, Chile. April 3-7, 2000. Kleinn C, L Corrales, D Morales. 2000. What is the forest cover of Costa Rica? A comparative analysis of forest cover estimates. Valdivia, Chile. April 3-7, 2000. Kleinn C, D Morales. 1999. Árboles fuera del bosque: un recurso poco estudiado. In: Kleinn C, R Davis (eds): Memoria del Taller sobre el Programa de Evaluación de los Recursos Forestales en once Países Latinoamericanos, CATIE, Costa Rica, May 17-21, 1999. p.166-172. Morales D, C Kleinn. 2000. Árboles en potreros en Costa Rica. SIMFOR ? Simpósio Forestal, Pinar del Rio, Cuba. April 24-29, 2000. Kleinn C, L Corrales, D Morales. 2000. Cuál es la cobertura boscosa de Costa Rica? Un análisis comparativo de la estimación de cobertura boscosa en bosques tropicales. SIMFOR ? Simposio Forestal, Pinar del Rio, Cuba. April 24-29, 2000. Kleinn C. 1999: Statistical considerations in scientific experimentation. In: Krauss U. and P. Hebbar (Eds.): Research Methodology in Biocontrol of Plant Diseases, with Special Reference to Fungal Diseases of Cocoa. p.131-140. Kleinn C. 2000: Tree resources outside the forest in Central America: a regional assessment approach based on remote sensing and field survey. In: Temu AB, G Lund, RE Malimbwi, GS Kowero, C Kleinn, Y Malende, I Kone (Eds.) 2000. Off-forest tree resources of Africa. A proceedings of a workshop held at Arusha, Tanzania, 1999. The African Academy of Sciences (AAS). 336 p. Jovel J, C Kleinn, L Hilje. 1998. Un modelo para evaluar el efecto de artributos espaciales sobre la diseminación de enfermedades de plantas. In: Memoria XXXVIII Reunión Anual de la Sociedad Americana de Fitopatología División Caribe (APS-CD). Managua, Nicaragua. Pp. 243. Jovel J, L Hilje, C Kleinn, B Valverde, P Ramírez, V Cartin. 1998. Movimiento diario de Bemisia Tabaci en parcelas de tomate, diseminación local del mosaico amarillo y fuentes de inóculo del ToYMV-CR en Guayabo, Costa Rica. In: Memoria. VII Taller Latinoamericano y del Caribe sobre Moscas Blancas y Geminivirus. Managua, Nicaragua. Pp. 198. Rojas L, C Godoy, P Hanson, C Kleinn, L Hilje. 1999: Diversity of hoppers (Homoptera: Auchenorryncha) in coffee plantations with different types of shade, in Turrialba, Costa Rica. In: Jiménez, F. and J. Beer (compilors) 1999: Proceedings of the International Symposium "Multi-Strata Agroforestry Systems with Perennial Crops" held at CATIE, Turrialba, Costa Rica, Feb. 22-27, 1999, p. 216-219. Traub B, C Kleinn. 1999: Erfassung von Waldflächenfragmentierung mit Hilfe von Stichprobenverfahren. IBS, Arbeitsgruppe Ökologie, Herbstkolloquium Freiburg, 30. Sept.-2. Okt. 1998, p38-46. Kleinn C. 1998: Assessing forest fragmentation metrics from forest inventory cluster samples. International Conference on the Inventory and Monitoring of Forested Ecosystems: Integrated Tools for Natural Resources Inventories in the 21st Century, August 16-20, 1998, Boise, Idaho, USA. Kleinn C. 1998: Forest Assessments: How do they contribute to the large area information needs on natural resources? Anais do IV Simpósio de Ecosistemas Brasileiros. 2 a 7 de abril de 1998, Águas de Lindóia, SP, Brasil. Pub. Aciesp no 104 (Acadmia de Ciencias do Estado de Sao Paulo). Kleinn C. 1997: Inventarios Forestales: Conceptos y Desarrollo. Memorias del II Congreso Nacional de Estadística, San José, Costa Rica. Marzo 11-12, 1997. Scheuber M, RO Morais, C Kleinn 1996: Methodological concept of the survey in the gallery forest of the Bananal River in the National Park of Brasilia. Proceedings of the Symposium on Assessment and Monitoring of Forests in Tropical Dry Regions. Nov. 4-8, 1996, Brasilia. p. 77-90. Kleinn C, R Laamanen, SB Malla. 1996: Integrating the assessment of non-wood forest products in a large area forest inventory - experiences from Nepal. Proceedings International Conference on Domestication and Commercialization of non-timber forest products in agroforestry systems, 19-23. February1996, ICRAF, Nairobi. FAO Non-Wood Forest Products Series No. 9, p23.31. Kleinn C, B Traub, M Dees. 1996: Large Area Forest Cover Assessment: Effects of Misregistration in a Double Sampling Approach with Coarse and High Resolution Satellite Images. Proceedings of the 2nd International Syposium on Spatial Accuracy. May 21-23 1996, fort Collins. USDA General Technical Report RM-GTR-277, p.391-400 Traub B, C Kleinn, M Dees, D Pelz. 1995: Calibrating AVHRR tropical forest cover estimates with TM sample images. Proceedings of the Meeting of IUFRO S4.11-00 held at IUFRO XX World Congress 1995, Tampere, Finland, p. 229-239. Kleinn C, B Traub, M Dees. 1995: Calibrating Forest Cover Estimates from Coarse Resolution Images with Samples of High Resolution Images - A Model Study on Possible Effects of Misregistration -. Proceedings of the Meeting of IUFRO S4.11-00 held at IUFRO XX World Congress 1995, Tampere, Finland, p. 210-219. Ye R, C Kleinn. 1995: GIS als Hilfsmittel bei der Planung einer regionalen Waldinventur. In: Beisch, T., A. Akça, K.U. Komp (Hrsg.): Fernerkundung und Geo-Informationssysteme in der Ökologie der Landoberfläche, p. 43-48. Kleinn C. 1994: Some specific problems of forest inventories in the tropics. AIFM International Conference on Multiple Resource Inventory and Monitoring of TropicalForests, 21-24 Nov. 1994, Seremban, Malaysia Kleinn C. 1994: Zum Einfluß von Meßverfahren bei Stichproben für Waldflächenschätzungen. Tagungsberichte des 7. Herbstkolloquium der AG Ökologie in der Deutschen Region der Internationalen Biometrischen Gesellschaft. Kleinn C. 1994: Traditional Forest Maps and Satellite Data in Compiling a Geo-referenced Database. Proceedings of the International Workshop on Designing a System of Nomenclature for European Forest Mapping. EFI, Joensuu, Finland. Imana J, JE de Paula, JC Woo, C Kleinn. 1993: Wood Volume Estimation of one Hectare of the Gallery Forest at the Small Stream Dos Macacos - Brazil. IUFRO Conference on Advancement in Forest Inventory and Forest Management Sciences, Sept. 20-25, 1993, Seoul, Korea. Kuntz S, C Kleinn. 1993: Storm damages assessment by satellite remote sensing? A case study from the northern Black Forest. IUFRO Conference on Inventory and Management Techniques in the Context of Catastrophic Events. June 21-24, 1993, State College, Pennsylvania, USA. Kleinn C. 1993: Single tree volume estimation with multiple measurements using importance sampling and control variate sampling - an empirical study. IUFRO Conference on Modern Methods of Estimating Tree And Log Volume and Increment, June 14-16, 1993, Morgantown, West Virginia, USA. Kleinn C. 1993: The precision of line intercept sampling and point cluster sampling using line segments and half squares. Proceedings of the IUFRO Conference on Stochastic Spatial Models in Forestry, Thessaloniki, May 18-21, 1993. Kleinn C. 1993: The role of measurement rules while assessing the forest cover of a region. Proceedings of the IUFRO Conference on Stochastic Spatial Models in Forestry, Thessaloniki, May 18-21, 1993. Kuntz S, C Kleinn 1993: Some aspects of the role of definitions of landuse classes based on satellite remote sensing - an example from forestry. Proceedings of the International Symposium on Operationalization of Remote Sensing, 19-23 April 1993, ITC, Enschede, The Netherlands. Kleinn C, DR Pelz. 1992: Forest Area Estimates - Sampling Error and Classification Problems. Proceedings of the IUFRO S.4.02.05 International Workshop Remote Sensing and World Forest Monitoring, Pattaya, Thailand, 13-17 January 1992. Kleinn C. 1992: On the Compatibility of Forest Inventory Results. Proceedings of the IUFRO Conference on Integrating Forest Management over Space and Time, Canberra, Australien, 13-17 January 1992. Kleinn C. 1990: Estimating the area of irregular-shaped objects by dot counts. In: Proceedings of the International IUFRO S.4.02 and S.6.04 Symposium Forest Inventories in Europe with Special Reference to Statistical Methods, May 14-16, 1990, Birmensdorf, Switzerland. Kleinn C. 1989: Aspects of area estimates in forest inventories. In: Proceedings of the IUFRO Conference on Forest Statistics, Mitteilungen der Abteilung für Forstliche Biometrie, Universität Freiburg 1989-2, pp.131-141. Kleinn C, DR Pelz. 1987: Subsampling trees for biomass. NE Forest Experiment Station, NE-GTR-117/1987, pp.225-228. ↑ Papers in technical series Kleinn C y D Morales. 2002. Inventario de árboles fuera del bosque, p-180-190 en: Orozco L, C Brumér. Inventarios forestales para bosques latifoliados en América Central. Série Técnica, Manual Técnico No. 50, CATIE. 264p. Kleinn C, C Ramírez, G Chaves y S Lobo. 2001. Estudio piloto para el inevtario nacional forestal en Costa Rica. FAO-FRA Working Paper No. 66. 51p. Morales D e Kleinn C. 2001. Les arbres haut forêt: le cas du Costa Rica. In: Bellefontaine R, Petit S, Pain-Orcet M, Deleporte P, Bertault J-G. Les arbres haut forêt: Vers une meilleure prise en compte. Cahier FA Conservation 35. p.141-147. http://www.fao.org/DOCREP/005/Y2328E/y2328e16.htm#TopOfPage Soihet C, Corrales L y C Kleinn. 2000. Honduras. Bibliografía comentada. Cambios en la Cobertura Forestal. FAO-FRA Working Paper No. 44. 42p. Corrales L y C Kleinn. 2000. Colombia. Bibliografía comentada. Cambios en la Cobertura Forestal. FAO-FRA Working Paper No. 43. 32p. Corrales L y C Kleinn. 2000. Panamá. Bibliografía comentada. Cambios en la Cobertura Forestal. FAO-FRA Working Paper No. 41. 46p. Corrales L y C Kleinn. 2000. Belice. Bibliografía comentada. Cambios en la Cobertura Forestal. FAO-FRA Working Paper No. 40. 38p. Corrales L y C Kleinn. 2000. Venezuela. Bibliografía comentada. Cambios en la Cobertura Forestal. FAO-FRA Working Paper No. 39. 32p. Corrales L y C Kleinn. 2000. Ecuador. Bibliografía comentada. Cambios en la Cobertura Forestal. FAO-FRA Working Paper No. 38. 48p. Soihet C, Corrales L y C Kleinn. 2000. El Salvador. Bibliografía comentada. Cambios en la Cobertura Forestal. FAO-FRA Working Paper No. 37. 35p. Soihet C, Corrales L y C Kleinn. 2000. Costa Rica. Bibliografía comentada. Cambios en la Cobertura Forestal. FAO-FRA Working Paper No. 36. 55p. Corrales L y C Kleinn. 2000. México. Bibliografía comentada. Cambios en la Cobertura Forestal. FAO-FRA Working Paper No. 35. 35p. Soihet C, Corrales L y C Kleinn. 2000. Nicaragua. Bibliografía comentada. Cambios en la Cobertura Forestal. FAO-FRA Working Paper No. 34. 51p. Kleinn C y J Pérez. 2000. Consideraciones metodológicas en la experimentación científica agrícola. CATIE Sub-Unidad de Estadística, 28p. BMELF 1998. Forest inventory and survey in Germany. (Autoren Kleinn C, M Dees, H Polley). 85 S. Traub B, C Kleinn, M Dees and DR Pelz. 1995: Calibration of AVHRR Satellite Data with Landsat TM - A Global Tropical Forest Assessment Approach. Mitteilungen der Abteilung für Forstliche Biometrie 95-2, Universität Freiburg. Ehrlenspiel G and C Kleinn. 1992: Implementing a Forest Information System. A Case Study in Cyprus. Mitteilungen der Abteilung für Forstliche Biometrie 1992-1, 35 p. Kleinn C. 1991: Der Fehler von Flächenschätzungen mit Punkterastern und linienförmigen Stichprobenelementen. Mitteilungen der Abteilung für Forstliche Biometrie 91 1, Universität Freiburg, 128 S. Kleinn C. 1989: Einzelbaumberechnungen mit dem Programm SITCA. Mitteilungen der Abteilung für Forstliche Biometrie, Universität Freiburg 1989-1, S.12-33. Kleinn C. 1989: Zur Berechnung von Einzelbaumvolumen. Mitteilungen der Abteilung für Forstliche Biometrie, Universität Freiburg 1989-1, S.1-11. ↑ Habilitation Thesis Kleinn C. 1997. Beiträge zur Planung und Durchführung großräumiger Waldinventuren. Schriftensynthese zur kumulativen Habilitation. 112p + Schriften.

↑ Supervision of doctoral candidates	Finished Ongoing External examiner in PhD-exams/disputations

↑ Finished
Tao Jiang, PR China (2024), CSS funded ("Integrating Deep Learning Techniques into Trees Outside Forests (TOF) Monitoring on High Resolution Satellite Imagery") Zihui Zhu, PR China (2024), CSC Scholar ("A new 3D description of tree crown — A study of urban trees") Ramon Trucíos-Caciano, Mexico (2020), funded by INIFAB\|Mexico ("Quantifying the uncertainty caused by sampling, modeling, and field measurements in the estimation of AGB with information of the national forest inventory in Durango, Mexico") Collins B. Kukunda, Uganda (2019), DFG funded Research Training Group 1644 'Scaling Problems in Statistics' \| Centre for Statistics ("P1-5: Scale challenges in inventory of forest aided by remote sensing") Damayanti Sarodja, Indonesia (2018), DFG funded ("Integrating field and RapidEye data for above-ground biomass estimation: A study in the tropical peat-swamp forest of Sebangau, Central Kalimantan, Indonesia") Almut Jenke (2018), DFG Sub-Project in the Working Group "International Forest Regime: Politics and Policies" ("Fragmentation of Information Procurement from Large Area Forest Inventory and the Link to the International Forest Regime-Complex") Dengkui Mo, PR China (2018), BMBF funded ("Further Developing Processing Techniques of Optical Satellite Images in the Context of Forst Monitoring") Dian Melati, Indonesia (2017), DFG funded ("The use of remote sensing data to monitor land use system and forest variables of the tropical rainforest landscape under transformation in Jambi Province, Sumatra, Indonesia") [Sonderforschungsbereich 990: Ökologische und sozioökonomische Funktionen tropischer Tieflandregenwald-Transformationssysteme (Sumatra, Indonesien)] Henning Aberle (2016), BMWi and DLR funded ("Hyperspectral remote sensing and field measurements for forest characteristics - a case study in the Hainich National Park, Central Germany") Nils Nölke (2016), DFG funded ("Integrating Remote Sensing Techniques into Forest Management: Selected Topics with a Focus on Thermal Remote Sensing") Xiaolu Tang, PR China (2015), BMBF funded ("Estimation of Carbon Stock and Stock Change Depending on Management - A Case Study in Shitai County, China") Philip Mundhenk (2014), DFG funded ("Integrating remotely sensed data into forest resource inventories: the impact of model and variable selection on estimates of precision") Paul Magdon (2013), DFG funded ("Fernerkundliche Waldflächenerfassung im Kontext internationaler Umweltabkommen - Eine Analyse kritischer Faktoren") Philip Beckschäfer (2012), BMZ/GTZ funded ("Quantitative Characterization and Analysis of Forest Structure as a Basis to Develop Biodiversity Monitoring Tools for the Upper Mekong Region") Mauricio Vega-Araya, Costa Rica (2012), DAAD support ("Application of multi- and hyperspectral imagery to support inventories of plantation of Gmelina arborea in Southern Costa Rica") Haijun Yang, PR China (2011), DFG funded ("Modified adaptive cluster sampling with conditional extension of field plots - Development of response and estimation design") Axel Buschmann (2011), staff member ("Breeding habitat modelling for red kite (Milvus milvus) in EU-SPA 'Unteres Eichsfeld' - A remote sensing bases study with special considerations of landscape configuration") Christoph Fischer (2011), staff member ("Further Development and Adaptation of Large Area Forest Inventories to Comprehensive Data Providers for Internatioanl Processes") Hamid Reza Riyahi, Iran (2010), Government scholarhip of the Islamic Republic of Iran ("Forest cover monitoring in drylands of South Western Iran") Jongsu Yim, South Korea (2008), DFG funded ("Research on an efficient forest assessment design as planning tool for sustainable forest management in South-Korea") Lutz Fehrmann (2006), DFG project ("Alternative techniques for single tree biomass estimation with special reference to the k-nearest neighbour (k-NN) technique") David Morales Hidalgo, Costa Rica (2006), DAAD scholar ("Tree cover assessment with special focus on the relative position issue. Case studies in open areas in Costa Rica") Juan-Carlos Camargo Garcia, Colombia (2006), DAAD/GTZ scholar ("Growth and productivity of the bamboo species Guadua angustifolia Kunth in the coffee region of Colombia") Bernal Herrera-Fernandez, Costa Rica (Freiburg, 2003), DAAD scholar ("Classification and modeling of trees outside forest in Central American landscapes by combining remotely sensed data and GIS") Hans-Jörg Fuchs (2003), staff member ("Methods for the assessment of forest trees using digital aerial photographs")
↑ Ongoing
Edwine Setia Purnama, Indonesia (2017), DAAD funded ("Development of a spatio-temporal model to describe the dynamics of forest cover changes in Jambi, Indonesia")
↑ External examiner in PhD-exams/disputations
Andreas Barth (December 2007), Swedish Agricultural University, Umeå, Sweden Owen Davies (September 2006), University of Wales, Bangor ("3D modelling of tree crowns based on by terrestrial photogrammetry") Marie Mbolo (September 2004), Université de Yaounde, Cameroon ("Methodological approaches to air photo based forest cover type mapping in Djah National Park in Cameroon") Jörgen Wallerman (April 2003), Swedish Agricultural University, Umeå, Sweden ("Remote sensing aided spatial prediction of forest stem volume")