摘要
采用回归分析法和Mann-kendall趋势检验法研究榆林地区的降水量和径流量的趋势变化,分析其演化规律,并对两者的相关关系进行讨论。结果表明:榆林地区的降水量和径流量基本呈缩减态势,且径流量的缩减速率大于降水量。通过对榆林地区产汇流机制分析表明,榆林地区降水与径流关系较差,不仅受到人类取用水的影响,还受到地下水补给迟滞效应的影响。
The article is based on the regression analysis method and the Mann-kendall trend test method to study the trends of precipitation and runoff in Yulin area and analyzes their evolution rules, and discuss their correlation. The results showed that the precipitation and runoff in the Yulin area basically reduced, and the rate of runoff reduction was greater than the precipitation. The analysis of the production and sinking mechanism in the Yulin area shows that the precipitation and runoff in the Yulin area are relatively poor, not only affected by human water consumption, but also affected by the hysteresis effect of groundwater recharge.
作者
强文博
Qiang Wenbo(Shaanxi Water Group Xi＇ an 710004, Shaanxi)
出处
《陕西水利》
2018年第3期50-53,共4页
Shaanxi Water Resources
