STATUS AND PROSPECT ON EXPLOITATION AND UTILIZATIONOF SALINE GROUNDWATERIN HEBEI PLAIN, CHINA

摘要

Hebei Plain is a one of the water scarce region in China. Overexploitation of deep fresh groundwater has induced somerngeo-environmental problems, such as land subsidence. However, there are plenty of brackish and saline groundwaters within thernshallow aquifers. Thus, exploitation and rational utilization of these saline groundwaters are vital to improve the ecosystem and tornmeet the ever increasing demand for water. At present, there are three utilization modes of saline groundwater in Hebei plain, whichrninclude direct use, indirect use and desalination use. The total production rate of saline groundwater in 2003 was aboutrn4.035×109ｍ３. Exploitation and rational utilization of saline groundwater in this plain is of substantial practical importance, sincernpumping saline groundwater can decline the water table to an optimal depth and help replenish aquifers, such as reducing waterrnevaporation loss for increasing amount of water resources; vacating the space of the shallow aquifers for increasing storage capacityrnof aquifer and preventing waterlogging or drought; improving groundwater salinity and controlling the process of soil salination;rnalleviating the threat for the resource of fresh water. This paper was focused on discussion of the prospect of saline groundwaterrnutilization for agricultural irrigation, industrial uses, domestic uses and ecological water use etc. And then, some suggestions andrnmeasures were given for exploitation and rational utilization of saline groundwaters.