A Study on Water Cycle and Groundwater Formation at Chabagou Catchment, Loess Plateau, China
In the past decades, runoff in the Yellow River has decreased sharply, with the mainstream drying up at times in recent years. At the Loess Plateau locating at the middle reaches of Yellow River Basin, people have constructed widespread silt arresters and terraces to conserve soil and water resources. However, for lack of systematic observation on water cycle, how does climate change and human activities as silt arresters and terraces affect local water cycle mechanism, what extent do they affect, and origin of local groundwater, is still under dispute. These call for a detailed study of interactions between precipitation, surface water and groundwater in Loess Plateau, which needs systematical observation on water cycle. In the study area Chabgou Catchment, typical Loess Plateau Ravine Region with great human activities, Chabagou Catchment and Caoping Xigou Experimental Watershed have been chosen to perform systematic hydrological and climatic observation, and to collect water samples periodically and instantaneously for isotopic and hydrochemical analysis. At Caoping Xigou Experimental Watershed, artificial rain also has been carried out to study the processes of runoff yield and precipitation infiltration. In combination with isotopic compositions and hydrochemistry of different waters, the hydrological study will provide reliable data foundation, and then to give some suggestions to reconstruction of local environment and ecology.
water cycle groundwater environmental isotopes chabagou catchment Loess Plateau
Song Xianfang Liu Xin Xia Jun Zhang Xuecheng
Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Science an Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Science an Institute of Hydrology and Water Resources, YRCC, Zhengzhou, 450004, China
国际会议
山东东营
英文
79-90
2007-10-16（万方平台首次上网日期，不代表论文的发表时间）