Belachew Gizachew Zeleke
Research Scientist
Authors
Dagnew Yebeyen Burru Jayaraman Durai Melaku Anteneh Chinke Gudeta W. Sileshi Yashwant S. Rawat Belachew Gizachew Zeleke Selim Reza Fikremariam Haile Desalegne Kassa Toshe WorassaAbstract
No abstract has been registered
Abstract
The background for this study is the limitations of the conventional approach of using deforestation area multiplied by biomass densities or emission factors. We demonstrated how TanDEM-X and GEDI data can be combined to estimate forest Above Ground Biomass (AGB) change at the national scale for Tanzania. The results can be further recalculated to estimate CO2 emissions and removals from the forest. We used repeated short wavelength, InSAR DEMs from TanDEM-X to derive changes in forest canopy height and combined this with GEDI data to convert such height changes to AGB changes. We estimated AGB change during 2012–2019 to be −2.96 ± 2.44 MT per year. This result cannot be validated, because the true value is unknown. However, we corroborated the results by comparing with other approaches, other datasets, and the results of other studies. In conclusion, TanDEM-X and GEDI can be combined to derive reliable temporal change in AGB at large scales such as a country. An important advantage of the method is that it is not required to have a representative field inventory plot network nor a full coverage DTM. A limitation for applying this method now is the lack of frequent and systematic InSAR elevation data.
Authors
Belachew Gizachew Zeleke Deo D. Shirima Jonathan Rizzi Collins Byobona Kukunda Eliakimu ZahabuAbstract
No abstract has been registered