Soil erosion evaluation in the Heihe River Basin based on the RUSLE model

doi:10.14088/j.cnki.issn0439-8114.2026.01.006

Abstract

Abstract: To assess soil erosion conditions in the Heihe River Basin and their potential impact on the security of water sources, GIS techniques combined with the RUSLE model were used to quantitatively estimate the soil erosion modulus. The spatial patterns and primary influencing factors in the region were analyzed. Results indicated that soil erosion in the basin was predominantly slight or light, accounting for 91.44% of the total area; moderate erosion zones occupied 7.58%; and severe and extremely severe erosion areas were minimal, accounting for only 0.98% of the total area, and showed a spatial distribution trend of higher in the south and lower in the north. High-intensity erosion areas were sparsely distributed on mountain tops in the southwest and on sloping farmland in valleys. The analysis of influencing factors revealed that terrain slope, vegetation coverage, and human activities were the key factors determining the spatial variation of soil erosion in this region.

Key words: soil erosion, RUSLE model, evaluation, spatial analysis, Heihe River Basin

CLC Number:

S157.1
X144

ZHANG Jia-kang, WU Xin-rui, JIANG Ya-ru, HUA Cheng-hao, SONG Kai-wen, CHENG Yu-xiang. Soil erosion evaluation in the Heihe River Basin based on the RUSLE model[J]. HUBEI AGRICULTURAL SCIENCES, 2026, 65(1): 31-35.

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