Spatio-temporal variability of streamflow in the Huaihe River Basin, China: climate variability or human activities?

• DOI: 10.2166/nh.2017.155
• Publication Date: 2017-05-16T00:25:17Z
• Authors: Zharong Pan; Xiaohong Ruan; Mingkai Qian; Jian Hua; Nan Shan; Jing Xu
• Keywords: Economic shortage

Abstract The water shortage in the Huaihe River Basin (HRB), China, has been aggravated by population growth and climate change. To identify characteristics of streamflow change assess impact variability human activities on hydrological processes, approximately 50 years natural observed data from 20 stations were examined. Mann–Kendall test was employed to detect trends. results showed following. (i) Both HRB present downward trends, decreasing rate is generally faster than that streamflow. (ii) For whole period, negative trends dominate four seasons basin. highest for two kinds both occurred spring, lowest ones autumn winter. (iii) Based above analysis quantifying assessment decrease, activity main driving factor Xuanwu (80.78%), Zhuangqiao (79.92%), Yongcheng (74.80%), Mengcheng (64.73%) which all belong System (HRS). On other hand, major Daguanzhuang (68.89%) Linyi (63.38%) Yishusi (YSR).