GIS环境下基于RUSLE的加纳北部三区土壤侵蚀估算

IF 0.3 Q4 GEOGRAPHY

International Journal of Applied Geospatial Research Pub Date : 2021-04-01 DOI:10.4018/IJAGR.2021040101

E. Salifu, W. Agyare, N. Kyei-Baffour, G. Dumedah

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引用次数: 3

摘要

土壤侵蚀是一个具有严重后果的全球性问题，近年来在加纳北部地区已成为一个广泛的环境挑战。这项研究将RUSLE集成到GIS中，以估计加纳北部、东北部和萨凡纳地区的年度土壤侵蚀率。生成了土壤侵蚀图，北部地区的年土壤侵蚀率为4.0 t ha−1y−1，东北地区为5.0 t ha−1，萨凡纳地区为7.0 t ha−1gy−1。北部地区的Tatale Sangule和Kpandai地区的侵蚀率相对较高，降雨侵蚀力是主要驱动因素。北部地区的土地利用/覆盖侵蚀减少效果为66%，东北部地区为70%，萨凡纳地区为58%。与土地保护（P）因素相比，覆盖管理（C）因素是侵蚀控制中减少侵蚀的主要因素。

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Estimation of Soil Erosion in Three Northern Regions of Ghana Using RUSLE in GIS Environment

Soil erosion is a global problem with severe consequences, which has become a widespread environmental challenge in the northern parts of Ghana in recent times. This research integrated RUSLE into GIS to estimate the annual soil erosion rates for the Northern, North-East, and Savannah Regions of Ghana. A soil erosion map was generated with an annual soil erosion rate of 4.0 t ha−1y−1 for the Northern Region, 5.0 t ha−1y−1 for the North-East Region, and 7.0 t ha−1y−1 for the Savannah Region. Relatively higher erosion rates were observed in the Tatale Sangule and Kpandai districts of the Northern Region, with rainfall erosivity being the main driving factor. There was a landuse/cover erosion reduction effect of 66% in the Northern Region, 70% in the Northeast Region, and 58% in the Savannah Region. The cover management (C) factor was overwhelmingly the main erosion-reducing factor in erosion control as opposed to land conservation (P) factor.

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来源期刊

International Journal of Applied Geospatial Research GEOGRAPHY-

CiteScore

1.20

自引率

0.00%

发文量