Aster Gebrekirstos

**Aster Afwork Gebrekirstos** F TWAS masaniyar kimiyar ƙasar Habasha ce kuma farfesa a fannin aikin gona a cibiyar noma ta duniya (ICRAF).

## Rayuwar farko da ilimi
An haifi Aster Gebrekirstos a Shire, Tigray, Habasha a matsayin 'yar fari na iyali na bakwai. Tana da niyyar zama likita amma sakamakon karatun sakandaren da ta samu bai kai ta wannan mataki ba sai ta zaɓi tsakanin koyarwa da gandun daji ta zaɓi na biyu.  

Ta samu digiri na farko a fannin dazuka a Jami'ar Haramaya. Ta zauna a Jami'ar Haramaya a matsayin mataimakiyar digiri nan da nan bayan kammala digiri na farko kafin ta ci nasarar Fellowship na Netherland sannan ta kammala Master of Science a Wageningen University &amp;amp; Research (1996-1998). Ta dauki matsayin lectureship a Wondo Genet College of Forestry, Jami'ar Hawassa. 

An ba ta guraben karatu na Sabis na Musanya Ilimi na Jamus (DAAD) don yin Doctor na Falsafa a Jami'ar Gottingen a Jamus (2001-2005). Bayan ta kammala digirin ta, ta shiga matsayin mai bincike na gaba da digiri a sashen Biophysics da Biochemistry, Jami'ar Umeå, Sweden (2006-2008) kafin ta tafi ICRAF, Kenya da Jami'ar Göttingen, Jamus (2009-2011). 

## Sana'a da bincike
A matsayinta na Dendrochronologist, ta kafa ɗakin gwaje-gwaje na dendrochronology a Habasha a cikin shekarar 2009, ɗakin gwaje-gwaje na dendrochronology a Kwalejin gandun daji da albarkatun kasa na Wondo Genet a shekarar (2010), da dakin gwaje-gwaje na Dendrochronology na Duniya a Kenya a cikin shekarar (2013).  

Bincikenta ya mayar da hankali kan Dendroisotopy,   sauyin yanayi,   dangantakar ruwa da shuka,   da gandun daji na zamantakewa.  Gebrekirstos wata farfesa ce mai ziyara a Cibiyar Sabis na Kimiyya ta Yammacin Afirka akan Canjin Yanayi, Tsarin Amfani da Ƙasa (WASCAL), Jami'ar Dresden na Kimiyyar Kimiyya, Cibiyar Nazarin Harkokin Ilimin Kimiyya ta Duniya (CIPSEM).    Ita ce shugabar Kwamitin Muhalli ta Cibiyar Nazarin Kimiyya ta Afirka kuma mataimakiyar mai gudanarwa na IUFRO Task Force on Global Tree Staff Patterns and Trends, Majalisar Jagorancin Kimiyyar Cibiyar Bincike ta Dutse.   

## Kyaututtuka da karramawa
An zabe ta a matsayin Fellow of the African Academy of Sciences a shekarar 2017,  Fellow of the World Academy of Sciences a shekarar 2021,  and Fellow of International Academy of Wood Sciences a 2021.  

A cikin shekarar 2014, an ba ta lambar yabo ta Afirka don ingantaccen bincike kan daidaita yanayin yanayi da ragewa. Ita ce kuma ta lashe lambar yabo ta musamman na 2019 da Breaking Science; Ƙwararrun Ƙwararru Matasa na Afirka da Mata a Gasar Kimiyya wanda Cibiyar Fasaha ta Aikin Gona da Haɗin Kan Karkara ACP-EU (CTA) ta shirya, Nazarin Manufofin Fasaha na Afirka (ATPS), Alliance for a Green Revolution in Africa (AGRA), Forum don Binciken Aikin Noma a Afirka (FARA), Dandalin Jami'o'in Yanki don Ƙarfafa  Aikin Noma (RUFORUM), da Sabuwar Ƙungiya don Ci gaban Afirka (NEPAD).   

## wallafe-wallafen da aka zaɓa

* **Aster Gebrekirstos**, Ralph Mitlöhner, Demel Teketay, Martin Worbes (2008/10). Climate– growth relationships of the dominant tree species from semi-arid savanna woodland in Ethiopia. Tree 22: 631-641
* **Aster Gebrekirstos**, Demel Teketay, Masresha Fetene, Ralph Mitlöhner (2006). **'  229: 1-3 259-267
* **Aster Gebrekirstos**, Martin Worbes, Demel Teketay, Masresha Fetene, Ralph Mitlöhner (2009/4/1). . Global and Planetary Change 66:3-4 253-260
* Abiyu A, Mokria M, **Gebrekirstos** **A**, Bräuning A. (2018). [https://www.sciencedirect.com/science/article/abs/pii/S0378112717312501 ''.Tree-ring record in Ethiopian church forests reveals successive generation differences in growth rates and disturbance events''] [https://www.sciencedirect.com/science/article/abs/pii/S0378112717312501 Forest ''Ecology and Management'']  409: 835-844.
* Mokria M, **Gebrekirstos A''', Abiyu A, Noordwijk M, Bräuning A. (2017). Multi‐century tree‐ring precipitation record reveals increasing frequency of extreme dry events in the upper Blue Nile River catchment. Global Change Biology  23: 12 5436-5454.

## Manazarta