摘要
根据蒲河流域内沈阳站1975年以来近40 a实测径流资料和降雨资料,采用线性回归分析法、滑动平均法、M-K检验法、累积距平曲线、方差分析法和双累积曲线法,分析了蒲河流域径流年内年际变化特征、径流变化趋势、降雨及人类活动对径流的影响。结果表明:径流的年际变化不均匀丰枯变化较为剧烈;多年径流整体上有增加趋势,但增加趋势不明显,且存在5 a和10 a的周期变化。受降雨及人类活动影响,蒲河径流年际变化过程经历了1975—1984、1985—1994、1995—2004、2005—2015年4个阶段,人类活动成为影响径流变化的绝对主导因素。
According to the measured runoff data and rainfall data of nearly 40 years since Shenyang Station in Puhe Basin in 1975, the linear regression analysis method, moving average method, M-K test method, accumulative anomaly curve, analysis of variance and double cumulative curve method were used to analyze the annual and inter-annual characteristics of runoff, the runoff changing trend, the influence of precipitation and human activities on runoff. The results show that the change of runoff in annual and inter-annual is uneven;it has an increasing trend on annual runoff but the trend is not significant;it has a 5-year and 10-year period on annual runoff. For the influence of precipitation and human activities, the runoff of Puhe basin experiences four periods of change, which is 1975-1984, 1985-1994, 1995-2004 and 2005-2015 respectively. Human activities are the main decisive factor on runoff changes.
作者
张静
陈爽
ZHANG Jing;CHEN Shuang(Institute of Water Resources, Shenyang Agricultural University, Shenyang 110161, China)
出处
《人民珠江》
2019年第4期65-69,共5页
Pearl River
关键词
径流特征
影响因素
降雨
人类活动
蒲河流域
runoff characteristics
influence factor
precipitation
human activities
Puhe river basin
