The response of Hydrological Process of Liulin Karst Spring to both Climate and Anthropogenic Activities in Different Stages
The Liulin karst spring flow has been declining since 1950s, and the main cause to the attenuation is more and more intensive human activities and instructions.By using the Grey system model piecewise, this paper focuses on analyzing the effects of anthropogenic activities to hydrological process of Liulin karst spring statistically.In the first stage (1957-1973), Liulin Springs flow is only affected by climate; in the second stages (19741996), Liulin Spring flow is affected by climate and human activities, and not steady; in the third stage (1997-2009), Liulin Springs flow is affected by climate and human activities, and steady.Then through scientifically comparing, we analyzed the effect of human activities to hydrological process of Liulin Spring by using Grey relational analysis and GM model with time lags.The results illustrate that (1) the lag increases from 0 to 4 years; (2) the most important recharge to karst flow is precipitation (3) it is human activities that caused the attenuation of spring flow after 1974, which means that human activities have significantly negative influences on the supplement of precipitation to Liulin Spring.
groundwater piecewise analysis grey relational analysis GM (1 N) model anthropogenic activities Liulin springs
Cao Bibo Li Zhongtang Hao Yonghong
College of City and Environment Science Tianjin Normal University,Tianjin 3003&7,P.R.China Department of Environmental Engineering,College of Science and Engineering,Jinan University,Guangzho Key Laboratory for Water Environment and Resources Tianjin Normal University Tianjin300387,P.R.China
国际会议
南京
英文
401-406
2011-09-15（万方平台首次上网日期，不代表论文的发表时间）