The Mathematics Modes On Sustainable Using And Synthetic Evaluation Of The Water Resources

The synthetical evaluation technique of Water Resource management is an important means to study the harmonious relation between Water Resource, Society, Economy and Environment, and also is a powerful tool to fulfill the strategic target of Water Resource sustainable developing and using. Many technique, and made many useful discussion.This thesis made the evaluation technique developing rapidly on the water resources through the development and exploitation of mathematics model. we apply the mathematics models to analyse and study systematically. we induce these models to three types: the programming theory model; the input and output model ;the covariance index number model.According to the different particularly emphasis in research, there are also many different methods to use: If the research emphasis on an target or a few main targets,in order to realize the main targets, the other targets then are placed in the unimportant position, we can adopt the programming theory model, while adopting the programming theory model this thesis mainly discussed how to select the target function and the stipulation terms on application according to the actual evaluation problem; For the input and output model, this text conduct the object — value mixture's input and output mode of water resources ,the whole model includes two parts, the form of input and output and the calculation formulas of economic performance coefficients.The point in the thesis is to set up the covariance index number model. The covariance index number model established an index system of Water Resource sustainable using based on the ideology of economical statistics. The index system consists of three sections: gross index, proportion comparative index and intension proportion index. During the procedure of evaluation, we also have import some essential inter-variables. Such as available gross amount of water resource, the total amount of water resource can be supplied, the average per capita water amount for living, GDP , the water-consuming coefficients of every industry and economical benefit coefficients of every industry, etc.We see each index as a change item of index system and set up the coordination coefficient and the sustainable development coefficient, the two index coefficients deal quantitative the water resources, environment, society, economic coordination development condition and sustainable condition through using a specific number way from zero to one.The covariance index numbers evaluation method established in this thesis has the important application value actually.