Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Indicative of Land Use/Land Cover Change influenced Ecosystem Service Value Changes in Wayu-Tuka District, Western Ethiopia

Version 1 : Received: 28 June 2023 / Approved: 29 June 2023 / Online: 29 June 2023 (11:32:49 CEST)

How to cite: Kenea, J.B.; Wakjira, F.S.; Mekonnen, A.G. Indicative of Land Use/Land Cover Change influenced Ecosystem Service Value Changes in Wayu-Tuka District, Western Ethiopia. Preprints 2023, 2023062103. https://doi.org/10.20944/preprints202306.2103.v1 Kenea, J.B.; Wakjira, F.S.; Mekonnen, A.G. Indicative of Land Use/Land Cover Change influenced Ecosystem Service Value Changes in Wayu-Tuka District, Western Ethiopia. Preprints 2023, 2023062103. https://doi.org/10.20944/preprints202306.2103.v1

Abstract

Land use/land cover (LULC) changes have a substantial influence on ecosystem services. The objective of this study is to estimate LULC dynamics induced ecosystem service values (ESV) changes in Western Ethiopia. Data were acquired from Landsat images of the area for four periods (1990-2020), and 221 sample households. The areas of LULC classes and the improved ESV coefficients of Costanza et al (1997) were used estimate ESV changes in 1990-2020. Forest provides diverse provisions, regulatory, supportive and cultural services. Analysis of the Landsat images showed that forest, farmland, settlement, water body and bare-land were the major LULC classes in the study area. While forest ESV had accounted 46.1% (US$ 4.95 million) of the ESV of Wayu-Tuka district in 1990, farmland ESV constituted the largest share (63.3%, US$ 5.21 million) of the ESV of the area after 30 years (2020). The ESV of forest and bare-land showed decreasing trends in three decades (1990-2020) but the farmland service value revealed an increasing trend in the same periods. Forest ecosystem exhibited the largest service value loss (US$ 3.91 million) in 1990-2020; whereas, the service value gain of farmland was only US$ 2.2 million although farmland was responsible for the conversion of the largest area size (9,766.5 ha) from other land covers in 30 years. LULC change induced net ESV loss of the district in three decades (1990-2020) was 23.4% (US$ 2.51 million). Land conversion due to expansion of farmland (by 9,766.5 ha) and settlement (by 4,061.3 ha) was the main cause for the LULC dynamics and the significant ESV loss in 1990-2020. Thus, the government and local people should cooperate so as to curb the steady degradation of forest and its ecosystem services in Wayu-Tuka district, Western Ethiopia.

Keywords

ESV; estimated; change; induced; loss; western Ethiopia

Subject

Environmental and Earth Sciences, Environmental Science

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