Wu Zhenyu, Luo Mengqi, Guo Hongli, et al. Quantitative Analysis of Soil Erosion Along Yangtze River in Jiangsu Province Based on Geographic Detector[J]. Bulletin of Soiland Water Conservation, 2022, 42(2): 184-188.
DOI:
Wu Zhenyu, Luo Mengqi, Guo Hongli, et al. Quantitative Analysis of Soil Erosion Along Yangtze River in Jiangsu Province Based on Geographic Detector[J]. Bulletin of Soiland Water Conservation, 2022, 42(2): 184-188. DOI: 10.13961/j.cnki.stbctb.2022.02.025.
Quantitative Analysis of Soil Erosion Along Yangtze River in Jiangsu Province Based on Geographic Detector
[Objective] The spatial distribution characteristics of soil erosion was explored
the main influencing factors were identified and quantitative attribution of driving force factors were carried out
in order to guide regional soil erosion control and ecological environment construction. [Methods] Taking the area along the Yangtze River in Jiangsu Province as the research object
based on high-resolution remote sensing images
digital elevation models
and long series of rainfall data
the methods of Chinese soil loess equation (CSLE) and geographic detectors were used to explore the dominant influencing factors and interactions of the spatial variability of soil erosion
to identify areas with high risk of soil erosion. [Results] ① Slope and land use types dominated soil erosion in plain and hilly areas. The soil erosion of tea gardens was dominated by vegetation coverage
and soil erosion of other types of land use was dominated by slope. ② The dominant interaction of soil erosion was slope superimposition of land use types. The dominant interaction factors between tea garden and grassland were slope and vegetation coverage
and the dominant interaction factors for soil erosion of other types were slope and rainfall. ③ High-risk areas of soil erosion in orchards
tea gardens
woodlands and areas disturbed by production and construction activities were located in hilly mountainous areas with slopes> 20°
rainfall of 1300~1 400 mm
and high vegetation coverage. [Conclusion] The geo-detector is easy to operate. The results include single factor influence
two factor interaction and risk area analysis. Close attention should be paid to the problems of soil erosion in areas disturbed by production and construction activities and garden plots in Jiangsu Province.