Research on spatial patterns of soil erosion in wind erosion region based on the revised wind erosion equation and partial least squares regression

被引:0
|
作者
Huang, Xu-Dong [1 ,2 ]
Li, Yue-Jia [1 ]
Han, Pei-Pei [3 ]
Zheng, Ran [3 ]
Yan, Hua-Jie [1 ]
Zhao, Pan-Pan [1 ,2 ]
Zhang, Xiao-Li [1 ,2 ]
Feng, Li-Li [1 ,2 ]
Wang, Dong [4 ]
Zeng, Feng-Juan [5 ]
机构
[1] North China Univ Water Resources & Elect Power, Coll Water Resources, Zhengzhou, Peoples R China
[2] Henan Key Lab Water Resources Conservat & Intens U, Zhengzhou, Peoples R China
[3] Henan Yellow River Hydrol Survey & Design Inst, Zhengzhou, Peoples R China
[4] Henan Univ, Sch Life Sci, Int Joint Res Lab Global Change Ecol, Kaifeng, Henan, Peoples R China
[5] China Construct Seventh Engn Div Corp Ltd, Zhengzhou, Peoples R China
基金
中国国家自然科学基金;
关键词
soil erosion; wind erosion; vegetation; partial least squares regression; ecological protection; LAND-USE; INTENSITY; PLATEAU; SCALE;
D O I
10.3389/fenvs.2024.1425044
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Understanding the complex influencing factors of soil erosion is critical for maintaining regional ecological security. The revised wind erosion equation (RWEQ) and partial least squares regression (PLSR) model were used to reveal the primary factors affecting soil erosion. Based on the results of the RWEQ model, the wind erosion area was 8,439.3 km2 in 2018, accounting for 54.3% of the total planning area, and mild erosion, moderate erosion, intense erosion, very intense erosion, and fierce erosion accounted for 18.22%, 11.43%, 11.78%, 10.16%, and 2.74% of the total planning area, respectively. Based on the results of the PLSR model, the results indicate that the proportion of mining land, meteorological indicators, and mean square deviation of slope difference were positively correlated with the soil erosion area, intensity, and severity, respectively. The proportion of grassland and forest land was negatively correlated with the soil erosion area, intensity, and severity. The mean square deviation of slope difference, the mean square deviation of difference in elevation, and the proportion of urban land use contributed the most to the soil erosion severity index, with variable importance in projection (VIP) scores of 1.55, 1.44 and 1.43, respectively. The mean square deviation of slope difference, the proportion of urban land, and the mean square deviation of difference in elevation contributed the most to the soil erosion area, with VIP scores of 1.53, 1.26 and 1.24, respectively. The results provide new insights into wind erosion and the influences of weather conditions and human influences, which can guide regional soil and water conservation planning in wind erosion regions.
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页数:11
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