Publications

PUBLICATIONS/ SUBMISSIONS



Gebrekirstos, A., Teketay, D., Fetene, M., Worbes M., Mitlöhner R., 2009. Stable carbon isotope ratios in tree rings of co-occurring species from semi arid tropics in Africa: patterns and climatic signals. Global Planetary Change 66, 253-260.

Gebrekirstos, A., Teketay, D., Mitlöhner, R., Worbes, M. (2008): Climate-growth relationships of the dominant tree species from semi arid savanna woodland in Ethiopia. TREES 22: 631-641 (DOI/0.1007/s00468-008-0221-z)

Tatiana Betson, Angela Augusti, Aster Gebrekirstos, Walter Vetter, Jürgen Schleucher (2007): Isotopomers in environmental toxicology and plant-climate interactions: “Stable Isotope Tools for the Assessment of Chemical and Microbial Transformation Reactions in Complex Natural and Contaminated Environments”,18. - 23. November 2007, Mt. Verità/Schweiz, Extended Abstracts S. 63-64.

Gebrekirstos, A., Teketay, D., Fetene M., Mitlöhner, R. (2006). Adaptation of five co-occurring tree and shrub species to water stress and its implication in restoration of degraded lands. Forest Ecology and Management 229: 259-267


Theses:

Gebrekirstos, A., 2006. Stable isotopes and Plant Water Relations in the Acacia Savanna Woodlands of Ethiopia: Implications for Reforestation and Paleoclimatic Reconstructions, PhD Thesis, Goettingen University, Cuvillier Verlag Goettingen, Germany.

Gebrekirstos, A., 1998. Local people´s participation in reforestation: Case study in Degua Tembien Northern Ethiopia, Msc Thesis, Wageningen Agricultural University, The Netherlands.


Conference Presentations:

Gebrekirstos, A., Teketay, D., Fetene M., Worbes, M., Mitlöhner R., Tree ring 13 C in Balanities aegyptiaca and Acacia senegal from savanna woodland in Ethiopia as drought indicator. A paper presented at 7th International Conference of Dendrochronology, 11-17 June 2006, Beijing, China.

Gebrekirstos, A., Teketay, D., Worbes, M., Mitlöhner, R. 2006. Stable carbon isotopes in tree rings of Balanities aegyptiaca and Acacia senegal drought indicator, A poster presented at a conference on Isotopes as Tracers of Ecological change, March 12-15, Tomar, Portugal

Gebrekirstos, A., Teketay, D., Fetene, M., Mitlöhner, R., Plant water relations as indicators and regulators of bush encroachment in Semi arid Savanna, Awash National Park, Ethiopia. A Poster presented at GTÖ Conference 21-24, February 2006, Kaiserlautern, Germany

Gebrekirstos, A. Mitlöhner, R., Worbes, M., 2004. Climate - growth relationship of Balanities aegyptiaca and Acacia senegal from semi arid savanna woodlands in Ethiopia, A poster presented at Euro Dendro 2004, Germany