The Chengdu Carrying Capacity of Water Resources Status Evaluation Based on the Variable Sets

Abstract

Chengdu located in the western Sichuan Province, the Chengdu plain hinterland, and have the flat terrain and various river network, is the only large city in the western region. Along with the implementation of the Tianfu New Area and Eastward strategic planning and implementation, the demand for water is increasing and the water supply mainly comes from the upper Min Jiang river water in the distribution of the Du Jiang Yan irrigation system; according to many years hydrological data statistical analysis was carried out on the water resources of the upper reaches of Min Jiang river, Min Jiang river water resources quantity showed a trend of less obvious decrease; increasing water demand and water resources continue to reduce the contradiction between the increasingly prominent, need to take corresponding engineering method fundamentally resolved. The paper based on variable set theory proposed by the professor Chen shouyu, taking advantage of the water resource relevant exploitation and utilization data of Chengdu, then established the water resources carrying capacity evaluation model and evaluation system of Chengdu, and finally assessed the present situation of water resources carrying capacity of Chengdu scientifically. From the assessment we could get the main contradiction and the mining potential of Chengdu and provide some reference bases for optimizing the configuration water from the upper and middle reaches of Min Jiang river in head works of Du Jiang Yan, and helpful for the comprehensive balance of the transit water, local water and the transferred water in the process of optimizing allocation of water resources of Chengdu.