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Evaluating the impacts of watershed rehabilitation and irrigation interventions on vegetation greenness and soil erosion using remote sensing and biophysical modelling in Feresmay watershed in Ethiopia

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Title Evaluating the impacts of watershed rehabilitation and irrigation interventions on vegetation greenness and soil erosion using remote sensing and biophysical modelling in Feresmay watershed in Ethiopia
 
Creator Bayissa, Yared
Dile, Yihun T
Srinivasan, Raghavan
Ringler, Claudia
Lefore, Nicole
Abeyou, Abeyou
 
Subject evaluation
soil loss
feresmay
vegetation greenness
soil water conservation
 
Description Soil erosion and subsequent land degradation undermine efforts to ensure food security and environmental sustainability in Ethiopia. The government of Ethiopia has implemented exten-sive soil and water conservation (SWC) programs in severely degraded and food-insecure areas of the country, in some cases integrated with subsequent or parallel irrigation development. However, the effectiveness of these interventions has not been extensively evaluated. This study, therefore, evaluates the performance and impacts of SWC practices in terms of improv-ing vegetation greenness and reducing soil erosion in Feresmay watershed in Ethiopia. Long- term Landsat-based Normalised Difference Vegetation Index (NDVI), Revised Universal Soil Loss Equation (RUSLE), and Soil and Water Assessment Tool (SWAT) were used for change-detection analysis before and after the implementation of various SWC interventions. The results revealed the positive impacts of SWC interventions in improving the vegetation greenness and soil erosion reduction although the outcome varied by intervention. Increased vegetation green-ness was observed largely in areas where area closure with catchment treatment (ACCT) and impacts of irrigation (IRR) interventions are dominant, while relatively little impact was observed at the watershed level analysis. Although these interventions helped to reduce soil loss, the results highlighted the need for more SWC interventions to minimize further soil loss.
 
Date 2023-04-24
2023-11-23T18:05:17Z
2023-11-23T18:05:17Z
 
Type Journal Article
 
Identifier Yared Bayissa, Yihun T Dile, Raghavan Srinivasan, Claudia Ringler, Nicole Lefore, Abeyou Abeyou. (24/4/2023). Evaluating the impacts of watershed rehabilitation and irrigation interventions on vegetation greenness and soil erosion using remote sensing and biophysical modelling in Feresmay watershed in Ethiopia. All Earth, 35 (1), pp. 112-131.
2766-9645
https://hdl.handle.net/10568/134699
https://doi.org/10.1080/27669645.2023.2202968
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format 112-131
application/pdf
 
Publisher Taylor and Francis
 
Source All Earth