中国水土保持科学2013，Vol.11Issue(2)：33-38,6.
渭河流域气候变化与人类活动对径流的影响
Effects of climate change and human activity on streamflow in the Wei River Basin
摘要
Abstract
Research was conducted in a tributary of the Yellow River, Wei River. Streamflow at Huaxian station during the period of 1958 -2011 were applied to identify the trends and abrupt changes by using Mann-Kendall test, non-parametric Pettitt test and double mass curve analysis in the Wei River basin. The simple water balance model was employed to quantify the effects of climate variability and human activities on streamflow. Results show that 1 ) a remarkable decrease trend in annual streamflow were detected with the rate of 0. 86 mm/a. 2) an abrupt change was identified in 1994. The streamflow time series were then divided into two periods, i. e. , the baseline period (1958 - 1994) and the changed period (1995 -2011). 3) Streamflow during the changed period decreased by 64.6% , 41.3% and 45.5% in dry year, normal year and wet year, respectively. 4) In the controlled region of Huaxian station, it was found that precipitation variability and human activities accounted for about 49. 0% and 51. 0% of the change in streamflow. Additionally, the effect of climate change on streamflow was mostly caused by precipitation decrease in the Wei River basin.关键词
降水/潜在蒸散发/径流/气候变化/人类活动/渭河流域Key words
precipitation/ potential evapotranspiration/ streamflow/ climate change/ human activity/ Wei River Basin分类
天文与地球科学引用本文复制引用
毕彩霞,穆兴民,赵广举,白桦..渭河流域气候变化与人类活动对径流的影响[J].中国水土保持科学,2013,11(2):33-38,6.基金项目
中国科学院重点部署项目"黄土高原及周边沙地近代生态环境的演变与可持续性"(KZZD-EW-04) （KZZD-EW-04）
国家自然科学基金"延河流域水沙变化及其对退耕还林(草)的响应"(41271295),"皇甫川流域泥沙来源的复合指纹示踪研究"(41201266) （草）
