The Study Of Water Rrsources Carrying Capacity In Tuwei Basin

Tuwei Basin located in the eastern part of the Ordes Basin, in the transition zone of thesub-humid and semi-arid climate. The basin is riched in mineral and coal resources, it has theadvantages for the development of energy and chemical. Water resources is one of the mainfactors restricting Tuwei Basin the developmengt of social and economic because of itsdrought and intense evaporation. The purpose to study the water resources carrying capacityin Tuwei Basin is finding a style to use the support of the basin's water resources to maximizeits social and economic development.On the basis of the analysis of domestic and international research on water resourcescarrying capacity, the application of fuzzy set analysis, principal component analysis andfuzzy comprehensive evaluation method Tuwei River Basin water resources carrying capacityof the current year level, then to the basin water resources optimal allocation of the basis, theestablishment of multi-objective Tuwei River Basin water resources carrying capacity toquantify the computational model to make a few suggestions to Tuwei River Basin water use.The conclusions are as follows:(1) On the basis of analyzing the indicators of water resources carrying capacity,combined with the actual situation of the bald tail River Basin, select Water modulus (10000m~3/km~2), per capita water consumption (m~3/person), population density (people/km~2), theurbanization rate (%), population growth rate (‰), the per capita GDP (yuan/person),industrial million increase in the value of water consumption (m~3/million), irrigation waterindicators (m~3/acres).The index of per capita arable land area (acres/person), pollutiondiameter ratio (%), drought index, respectively, apply fuzzy set analysis, principal componentanalysis and fuzzy comprehensive evaluation method to evaluat the present year of TuweiRiver Basin Water Resources Carrying Capacity. The results showed that Tuwei River Basinwater resources carrying capacity was overloaded level.(2) Multi-objective planning steps, through the coordination of the relationship betweenwater resources systems, socio-economic development and ecological environment,combined with the actual situation of the Tuwei River Basin, the establishment ofmulti-objective Tuwei River basin to quantify the computational model results show that thebald the end of the river basin water resources carrying capacity of the current year is a weak degree of overload level, Shenmu and Jiaxian, the status quo years of water resourcescarrying capacity is a weak degree and can carry and the critical level. In the planning year,Tuwei River basin as a whole water resources carrying capacity will be increased.(3)Applying muti-objective model analysis the WRCC of Tuwei Basin, we can getoptimal water structure. In order to improve the WRCC,we should reduce the rote ofagricural water and improve the rote of the third industry water, at the same time, we alsoshould improve the ecological water in order to protect the ecological environment. Finally,the paper put forward the WRCC in Tuwei Basin adjusting and controling patterns fromgeneral and practical levels in face of local problems concening water isuues, such as waterconservation and sdjusting the industreal structure ect.