Research On District Water Resources Carrying Capacity

Water resources is of the wondrously important natural and strategic economic resources. With the rapid development of society and economy, the problems on lack of water resources and deterioration of water environment are increasingly appearing. Water resources becomes one of key factors in sustainable development of social economy and ecological environment. Conducting research on water resources carrying capacity has very important significance for theories and great value in practice.On the basis of summarizing the existing research results at home and abroad, the interactive contacts among water resources social and economic development and ecological environment as well as the major measures to enhance water resources carrying capacity are explored in this dissertation. While the evaluation index system and the multi-purpose evaluation model for studying on district water resources carrying capacity are also proposed, which provide a feasible method for research on carrying capacity of district water resources. Major content is as follows.1. The major problems in current study are summed up by making use of the existing research results and analysing the concepts of water resources carrying capacity and its connotation;2. The interactive contacts among water resources social and economic development and ecological evironment are addressed. The most reasonable development manner for the large complex system consisted of these three parts is depending on the sustainable use of water resources to support the sustainable development of social economy and ecological environment;3. According to the connotation of sustainable development theory and the analyses of relation between sustainable development and carrying capacity, the sustainable development theory is pointed out as the basic principle of research on water resources carrying capacity,4. The main measures are studied to enhance water resources carrying capacity, including strengthening agricultural water saving, reinforcing indusrial and urban water saving, intensifying the prevention and treatment of water body pollution, exploring sources in various channels and reforming management system of water resources and policies of water price;5. The evaluation index system of water resources carrying capacity is established in three aspects that are social and economic system, ecological environment system and water resources system;6. The multi-purpose evaluation model for research on water resources carrying capacity is formed and the methods of asking for its results are analyzed ;7. The research on water resource carrying capacity of Z City as an example is done by making use of the established evaluation index system and multi-purpose evaluation model;8. A concise summary of the whole dissertation is carried out and some reasonable suggestions are put forward.