Study on forecasting&controlling of non-point-source pollution into large scale lake

With the rapid development of the society and economy, the situation of ecological environment of lakes and basin is deteriorating at a rapid pace. For reasons of temporal and spatial change and strong randomness etc, the quantitative calculation and forecasting of non-point-source pollution is a much difficult works all the time. System forecasting for water pollution system is a high-technical demanding issue. Forecasters are required to comprehensively master, as well as synthesize many methods or techniques. Various mathematical models are put forward to quantitatively forecast for the non-point-source pollution load of a large scale lake and its main affecting factors are analyzed in this paper. The results show the non-point-source pollution of the lake is the key factor of water pollution control of the lake. Some main technological measures based on it are given for the decision-makers.