水环境数学模型的建立为水环境预测与模拟提供了有效的工具，而开展水环境预测与模拟也是进行水环境影响评价和水环境规划的必不可少的基础工作。水环境预测用以预测人类活动对水环境状态的影响以及水环境状态对人类活动的反馈影响，其通过对某一区域水体如江河、湖泊、水库、海洋、地下水等的监测资料和统计数据对污染现状进行评价，对未来的水量与水质变化趋势作出估计和推测。水环境模拟则是利用水环境数学模型和电子计算机进行实验，以重现或预测自然界中水体各种状态的过程。因此，水环境预测与模拟在水环境研究中占有重要地位。-The establishment of the Water Environment mathematical model for the prediction and simulation of water environment provides an effective tool, and to carry out the prediction and simulation of water environment water environmental impact assessment and planning of water environment essential. Water environment forecast used to predict the impact of human activities on the state of the water environment and water environmental status of the feedback effects of human activities, through a regional body of water such as rivers, lakes, reservoirs, oceans, groundwater monitoring information and statistical data on the Pollution Situation assessment, make an estimate of the amount of water and water quality trends and speculate. Water Environment Simulation using the Water Environment mathematical models and computer experiment to reproduce or predict the water various states in the nature. Therefore, the prediction and simulation of water environment plays an important role in the water e