Objective The trend of soil erosion in Qinghai Province from 2004 to 2023 and its driving factors were systematically analyzed, in order to provide a scientific basis for soil and water conservation in alpine regions. Methods By analyzing the soil erosion situation and conservation efforts in Qinghai Province from 2004 to 2023, and using correlation analysis, this study identified the changing trend of soil erosion area in Qinghai Province and its relationship with factors such as investment in soil and water conservation, supervision and management efforts, and the area treated by various control measures. Results The area of soil erosion in Qinghai Province decreased from 2.04×105 km2 in 2004 to 1.59×105 km2 in 2023. The proportion of moderately eroded area decreased from 22.5% to 11.4%, and the proportion of severely and above eroded area of the total eroded area decreased from 37.2% to 17.0%. Increasing investment in soil and water conservation funds and strengthening supervision and management were the main driving forces for the reduction of soil erosion area. Conclusion Overall, soil erosion control in Qinghai Province has shown a significant improving trend, with the soil erosion area decreasing year by year. However, there are still problems that need to be addressed. Soil and water conservation efforts have gradually shifted from generalized and extensive management across the entire region to targeted management in key areas. Future work will focus on regions affected by wind erosion and mild erosion. Additionally, the achievements of the control efforts will be consolidated, and the progression from mild erosion to severe erosion will be prevented. The establishment of a value realization mechanism of soil and water conservation ecological products should be accelerated, and the sustainable development of soil erosion control efforts should be established.
文献参数: 朱安京, 吴幽, 李文证.青海省2004—2023年水土流失变化及其驱动力[J].水土保持通报,2025,45(6):181-189. Citation:Zhu Anjing, Wu You, Li Wenzheng. Soil erosion changes and driving factors in Qinghai Province from 2004 to 2023 [J]. Bulletin of Soil and Water Conservation,2025,45(6):181-189.
采用SPSS (statistical product and service solutions)软件,研究2个或2个以上不同变量间的相关性和紧密程度[21]。一般地,|r|>0.95时,存在显著性相关;|r|>0.8时,高度相关;0.5≤|r|≤0.8时,中度相关;0.3≤|r|<0.5时,低度相关;|r|<0.3时,关系极弱,认为不相关。
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