The effect of land use/land cover changes on ecosystem services valuation of Winike watershed, Omo Gibe basin, Ethiopia
The effect of land use/land cover changes on ecosystem services valuation of Winike watershed, Omo Gibe basin, Ethiopia
复制标题
DOI：
10.1080/10807039.2019.1675139
复制
发表时间：
2019-10-15
影响因子：
4.3
通讯作者：
Elias, Eyasu
中科院分区：
文献类型：
--
作者：
Aneseyee, Abreham Berta;Soromessa, Teshome;Elias, Eyasu
生态系统服务对维持地球上的生命是基本的，尽管它们受到人为活动的压力。本研究旨在探讨土地利用/土地覆被(LULC)变化对生态系统估价(ESV)的影响。利用1988-2018年LULC数据集和全球ESV系数，通过ArcGIS进行了ESV及其变化的估计。还从田间收集了农业供应ESV，以与全球ESV数据进行比较。ESV总额从1988年的4.8185亿美元下降到2018年的4.455亿美元，降幅为每年121万美元。在此期间，耕地的ESV增幅最大，为3347万美元，牧场的ESV降幅最大，为4735万美元。根据当地和全球数据，农业用地ESV分别为8,610.34美元和134万公顷/年。这表明本地研究和全球ESV数据之间存在显著差异。总体而言，生态支持系统的减少表明，由于土地非农化，环境正在退化，这表明需要进行可持续发展项目的干预。
Ecosystem services (ES) are fundamental to sustaining life on earth, although they are under pressure due to anthropogenic activities. The aim of this study is to investigate the trend of ES valuation (ESV) associated with land use/land cover (LULC) change. LULC datasets from 1988 to 2018 and the global ESV coefficient were used to conduct the estimation of ESVs and their changes through ArcGIS. The agricultural provisioning ESVs were also collected from the field to compare with the global ESV data. The total ESV decreased from US$481.85 million in 1988 to US$445.5 million in 2018, with a decreasing rate of US$1.21 million per year. Within this period, the largest ESV increment was observed in cultivated land with an increasing of US$33.47 million, and the largest decreasing was observed in grazing land with a decreasing of US$47.35 million. Based on local and global data, the agriculture land ESV were US$8,610.34 and US$1.34 million ha(?1) year(?1), respectively. This indicates a significance difference between local study and global ESV data. Overall, the decreasing of ESVs indicated that the environment is degrading due to the land conversion and this suggest sustainable development projects as intervention are required.