| Cite this article: | 韩聪慧,席小康.气候变化和人类活动对西拉木伦河径流的影响[J].灌溉排水学报,0,():-. |
| hanconghui,xixiaokang.气候变化和人类活动对西拉木伦河径流的影响[J].灌溉排水学报,0,():-. |
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| Impact of Climate Change and Human Activities on the Runoff of the Xilamulun River |
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hanconghui1, xixiaokang2
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1.Chifeng Hydrology Survey Bureau;2.Shaanxi Hydrological and Water Resources Survey Bureau
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| Abstract: |
| Affected by climate change and human activities, the shortage of water resources in the Xilamulun River Basin has become particularly prominent. Quantitative identification of the impact of climate change and human activities on runoff changes in the Xilamulun River Basin and the rational development of water resources Use has an important role. This paper takes the Xilamulun River Basin as the research object, adopts stepwise multiple regression, SCRCQ method and other methods to reveal the leading factors that cause the runoff changes of the basin and quantify the impact of climate change and human activities on the runoff of the river basin. The results show that the annual runoff changes are mainly affected by summer precipitation, followed by the summer average temperature. T1 (1972-1981), T2 (1982-1997), T3 (1998-2015) stages of precipitation impact on runoff changes were 0.26%, 17.51%, 26.13%; the impact of human activities on runoff changes They are 99.74%, 82.49% and 73.88% respectively. The changes in runoff at various stages are mainly caused by human activities, but with the passage of time, the effect of precipitation on runoff increases and human activities weaken. |
| Key words: Xilamulun River Basin; climate change; human activities; contribution rate |
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