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长江源区1980—2020 年水沙变化规律

摘要: 基于长江源区19802020年12个站点日降水及直门达站年径流及泥沙等数据,利用中国土壤流失方程、偏最小二乘结构方程和累积距平等方法,分析源区土壤侵蚀、河道水沙变化及长时间尺度下与降水的耦合作用机制。结果表明:(1)长江源区年土壤侵蚀模数呈显著增加趋势(P

Abstract: Abstract:The changes in soil loss, runoff, and sediment load in the headwaters of the Yangtze River and their correlation were studied based on the data of daily precipitation at 12 stations, and annual runoff and sediment at Zhimenda station in the headwaters of this river from 1980 to 2020. (1) The annual soil erosion modulus in the source area showed a significantly increasing trend (P

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[V1] 2023-05-30 19:10:27 ChinaXiv:202305.00252V1 下载全文
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