埃塞俄比亚大裂谷西北断崖干旱易发生计区土地利用和土地覆盖动态趋势及驱动因素分析

Q2 Social Sciences
J. Ahmed, Engdawork Assefa Tilahun, Tesfaye Zeleke Italemahu, Eskinder Gidey Sintayehu, S. M. Said
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引用次数: 1

摘要

目前的研究着眼于埃塞俄比亚大裂谷西北悬崖三个干旱易感地区1985年至2019年土地利用和土地覆盖(LULC)动态的模式和原因。采用空间数据、焦点小组讨论和关键信息者访谈等方法研究了土地利用效率变化的趋势和原因。Landsat图像处理采用ERDAS Imagine 2015, LULC变化分析采用ArcGIS 10.8。从结果来看,在整个研究年份中,所有研究lz都发生了快速的LULC交换。然而,Raya Valley LZ (RVLZ)比Allagie Ofla LZ (ALOFLZ)和Tsirare catchment LZ (TCLZ)偏移更大。从总面积来看,只有17.7%、28.3%和23.2%的RVLZ、ALOFLZ和TCLZ在研究期间分别持续存在。在研究的LZs中,LULC的变化是由人口压力和周期性干旱驱动的。这些变化破坏了研究区当地的生态系统服务,影响了当地社区的生计系统。因此,政府应该改革适当的土地使用政策,这有利于当地农民和他们的生态系统。此外,农业活动必须对环境友好,以提高农田生产力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analyzing Trends and Drivers of Land Use and Land Cover Dynamics in Drought-Prone Livelihood Zones of the Northwestern Escarpment of the Ethiopian Rift Valley
Abstract The current study looked at the patterns and causes of land use and land cover (LULC) dynamics from 1985 to 2019 in three drought-prone areas of the Ethiopian Rift Valley’s Northwestern Escarpment. Spatial data, focus group discussions, and key informant interviews were used to study the trends and causes of LULC dynamics. For Landsat image processing, ERDAS Imagine 2015 was used, and for LULC change analysis, ArcGIS 10.8 was employed. From the result, fast LULC exchange occurred in all study LZs throughout the study years. Raya Valley LZ (RVLZ) is, however, more highly shifted than Allagie Ofla LZ (ALOFLZ) and Tsirare catchment LZ (TCLZ). From the total area, only 17.7, 28.3, and 23.2 percent of RVLZ, ALOFLZ, and TCLZ persisted over the study years, respectively. The LULC change in the studied LZs was driven by population pressure and recurrent droughts. The research area’s local ecosystem services have been disrupted by these changes, which have impacted the livelihood system of the local community. Consequently, the government should reform the appropriate land use policy, which benefits local farmers and their ecosystems. In addition, farm activities must be environmentally friendly to increase farmland productivity.
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来源期刊
Papers in Applied Geography
Papers in Applied Geography Social Sciences-Urban Studies
CiteScore
2.20
自引率
0.00%
发文量
19
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