Study on the Influence of Groundwater Depth on Air Temperature in Land Surface Processes
Based on the data on the hydrological tests of typical soils in North China, this thesis probes into the relationship between groundwater environment and air temperature. Firstly, the relationships between the effect of ground-water depth, air temperature, antecedent rain and time were identified in the method for data mining based on the measured data from a certain field experiment station in North China, and a time sequence model of ground temperature was established according to the results of data mining. And according to the catastrophe theory, a groundwater exploitation depth catastrophe model of the ground temperature was established. The thesis also explores into the criteria for determining the alteration or changes of groundwater exploitation depth and has worked out the cause and effect relationship between excess exploitation of groundwater and the catastrophe of near-surface ground temperature. Based on the high correlation between near-surface ground temperature and nearsurface air temperature, the thesis comes to the conclusions that the lowering of groundwater level results in increase in near-surface air temperature, and there is a catastrophe point between the dynamic groundwater level and the air temperature, that is, the groundwater is no longer capable of regulating the air temperature when the groundwater level is lower than the catastrophe point. It is a beneficial supplement to the research of the evolution law of the groundwater environment and climate, which is very important for developing the study of groundwater.
Fu Zhimin Xiang Yan
College of Hydrology and Water Resources, Hohai University, Nanjing, 210098 Department of Dam Safety Management, Nanjing Hydraulic Research Institute, Nanjing, 210029
国际会议
南京
英文
385-390
2010-09-13（万方平台首次上网日期，不代表论文的发表时间）