黄泛区潮土土壤水和地下水的动态变化及其对降雨的响应

Soil Water and Groundwater Dynamics Responses to Precipitation in the Flooding Area of Yellow River

基于时间序列分析方法,在1999年10月至2000年9月豫北平原潮土土壤水、地下水位观测资料的基础上,分析了降雨(包括灌溉)动态和土壤水、地下水位动态的相关关系,揭示了该地区土壤水、地下水位对降雨的响应及其动态变化规律。结果表明,该地区土壤水、地下水位序列为自相关序列,时间相关域为1～2个滞后时间距;土壤水、地下水位对降雨的初始响应时间都在1周以内,并基本随土层深度增加而增大。

Based on observation of soil water and groundwater with Ochric Aquic Cambosols from Oct. 1999 to Sep. 2000 in North Henan Plain, we analyzed the dynamics of precipitation, soil water and groundwater table, and revealed the principles of response of soil water and groundwater table to precipitation. The results showed that soil water time series and groundwater table time series were autocorrelation with one or two time lag distance for time correlation ranges respectively. The initial response time of soil water and groundwater table to precipitation were within one week, and increased with soil depth. 