均衡法计算洞庭湖盆孔隙水天然资源

THE BALANCE METHOD TO CALCULATE THE NATURAL RESOURCES OF PORE WATER IN DONGTING LAKE BASIN

洞庭湖是我国第二大淡水湖。以往用补给量代替天然资源的方法计算其孔隙水天然资源,对地表水渗漏量很难计算,可信度低。用均衡法计算洞庭湖盆孔隙水天然资源,回避了直接计算地表水补给量,加深了孔隙水补给排泄的认识,计算结果亦较准确,故此种方法是地处暖湿亚热带、水系高度发育的湖盆孔隙水天然资源计算的较好方法。

Dongting lake is the second largest freshwater lake in our country. Its natural resources of pore water was estimated through the recharge in place of natural resource in the past, in which it is hard to calculate the surface water leakage, and the reliability is also low. The balance method is used to estimate the natural resources of pore water in Dongting lake basin, avoided direct calculation of surface water recharge, which is helpful for better understanding of the recharge and discharge of pore water, and the result is also accurate, so it is considered to be a better method to estimate the natural resources of pore water in lake basin in warm and wet subtropics with highly developed river system.