人类活动与海河平原水资源关系研究

ANALYSIS ON RELATIONSHIP BETWEEN HUMAN ACTIVITIES AND WATER RESOURCES IN HAIHE PLAIN

海河平原是华北地区的主要平原。随着山前拦蓄地表水工程的实施,地下水资源已成为该地区的主要供水水源,在开采量增加和气候变化的影响下,水资源问题制约着该地区的发展。特别是近些年来降水量减少、气温呈上升趋势,使本来就少的水资源更削弱了补给资源。通过对降水、蒸发、地表径流、地下水流场变化、地下水资源的系列变化性分析,认为降水量减少、气温升高而引起的蒸散发量增大,人类治水工程和开采地下水等因素是造成本地区水资源减少的重要条件。

The Haihe Plain is one of the important economic development in China. Lots of reservoirs were built. On the analysis of the changes of amount of precipitation, temperature and evaporation capacity from 1959 to 1998, it can be found that the amount of precipitation has the tendency of decrease, and the temperature and the evaporation capacity have the tendency of increase. We can be found in the calculation of water resources, the rate of surface runoff after the 1980s is decreas than before at the sa...