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Assessing the impacts of watershed interventions using ground data and remote sensing: a case study in Ethiopia

OAR@ICRISAT

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Relation http://oar.icrisat.org/11724/
https://doi.org/10.1007/s13762-021-03192-7
doi:10.1007/s13762-021-03192-7
 
Title Assessing the impacts of watershed interventions using ground data and remote sensing: a case study in Ethiopia
 
Creator Gumma, M K
Desta, G
Amede, T
Panjala, P
Smith, A P
Kassawmar, T
Tummala, K
Zeleke, G
Whitbread, A M
 
Subject GIS Techniques/Remote Sensing
Watershed Management
Ethiopia
 
Description Quantifying the temporal and spatial changes due to watershed interventions is important for assessing the effectiveness of
natural resource management practices on vegetative cover and sediment management. This study assessed the performance
of natural resource management in a target site (Aba Gerima) and compared the collateral impacts on neighbouring watersheds
in Ethiopia in terms of land-use land-cover change. Changes in the extent of cropland, grassland and shrubland were
assessed in the target watershed and the non-treated neighbouring watersheds using temporal satellite imagery. In addition,
ground monitoring was applied to quantify the impacts on sediment accumulation, fodder biomass and vegetative cover
intensity. The study findings showed substantial changes over the study period: mainly, a change from degraded and barren
land to restored vegetation in the target watershed, but a continued trend of land-use change from perennial vegetation to
cropland in the neighbouring untreated watersheds. There was a decrease in the rate of conversion of vegetative land cover
to cropland in the target watershed, and significant on-site changes in sediment retention, fodder productivity and vegetation
intensity. The study findings demonstrate a link between management interventions and improvement in soil and vegetation
ecosystem functions. These results not only indicate that watershed-level interventions improve on-site soil and water environmental
services but also underline the role of community managed land-use regulations in reducing pressure on natural
land-use systems and thereby serve the major goal of up-scaling sustainable land management.
 
Publisher Springer
 
Date 2021-01
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://oar.icrisat.org/11724/1/02_Assessing%20the%20impacts%20of%20watershed%20interventions_Ethiopia.pdf
Gumma, M K and Desta, G and Amede, T and Panjala, P and Smith, A P and Kassawmar, T and Tummala, K and Zeleke, G and Whitbread, A M (2021) Assessing the impacts of watershed interventions using ground data and remote sensing: a case study in Ethiopia. International Journal of Environmental Science and Technology (TSI). ISSN 1735-1472