Soil erosion in Yuxi City based on GIS and RUSLE

doi:10.14088/j.cnki.issn0439-8114.2022.18.006

Abstract

Abstract: The general soil erosion equation （RUSLE）, geographic information and remote sensing technology were combined, and the spatial distribution of soil erosion intensity in the study area was obtained by using the grid calculation function of ArcGIS. The final results showed that the average soil erosion in Yuxi City was 1 043.03 t/（km²·a）, of which the area of slightly eroded soil was 863 497.62 hm², accounting for 57.844% of the total area of Yuxi City, and the area of lightly eroded soil was 33.486% of the total area of Yuxi City. The area of moderately eroded soil accounted for 7.503% of the total area of the city. The main categories of soil erosion in the city were mild and slight erosion. The areas with severe soil erosion were concentrated in the southwest and southeast, mainly in the Yuanjiang, Lvzhijiang and Qujiang basins.

Key words: soil erosion, GIS, RUSLE, RS, Yuxi City

CLC Number:

S157.1

SUN Yong-qi, LI Jian-hua, LIU Shi-xin, FU Jing. Soil erosion in Yuxi City based on GIS and RUSLE[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(18): 34-39.

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