摘要
为分析年净流量与降雨量间的相关关系,以新疆各主要行政区内2003—2005年间的年径流量与降雨量为分析对象,利用最小二乘法对两者关系进行了线性回归分析。分析结果表明:在全疆范围内,各主要地区年径流量与降雨量呈现显著线性相关性,且其决定系数均在0.7以上。降雨量与径流量受气候等因素影响显著,空间变异性强,空间分布极不均匀。以上研究结果可用于径流量或降雨量的预测,尤其是对于径流或降雨资料不全或缺失地区具有一定的参考价值。
Annual runoff and rainfall of all major administrative regions in Xinjiang from 2003 to 2005 are adopted as analysis objects in order to analyze correlation between annual runoff and rainfall. The least square method is utilized for linear regression analysis on their relationship. The analysis results show that annual runoff and rainfall show prominent linear correction in main regions within the range of Xinjiang. The decision coefficient is above 0. 7. Rainfall and runoff are significantly affected by factors such as climate,etc. with great space variability and uneven spatial distribution. The research results can be used in the prediction of runoff and rainfall,which have certain reference value for regions with insufficient or lost runoff and rainfall information.
出处
《水资源开发与管理》
2016年第1期73-75,共3页
Water Resources Development and Management
关键词
径流量
降雨量
最小二乘法
线性回归
预测
runoff
rainfall
the least square method
linear regression
prediction
