内陆湖泊水盐均衡定律及其实证

Balance law of water and salt for inland lakes and its verification

提出并证明了内陆湖泊水盐均衡定律,即在一定条件下,湖泊经过长期演化之后,入、蓄水矿化比与损、补水量之比的代数和将收敛为1;分析了不同初始条件下内陆湖水盐演化方式,结合水箱模型试验,进行了实证研究,验证了内陆湖水盐均衡定律的存在性;所提出的定律不含任何经验常数,有助于估算潜排流量和矿化度,可根据条件变化预测内陆湖的长期水盐演变趋势,也可用于按照生态需求对湖泊矿化度进行调控。

The balance law of water and salt for inland lakes is put forward and verified. The balance law means that the sum of the ratio of inflow water salinity to lake salinity and the ratio of lost water to input water quantity will converge to 1 after long-term evolution. The developing mechanism and principle of lake water and salinity are analyzed based on different initial conditions. Based on water tank experiments, the presented law is validated. Without any subjective parameters, the law is supportive to estimate percolation water quantity and salinity and to predict long term water and salinity evolution tendency of inland lake. Moreover, the law is helpful to adjust lake salinity according to ecological requirement