Groundwater Resources Evalution Of Nalingguole River Piedmont Plain Of Golmud City In Qinghai Province

Water resource is the survival of human society and sustainable development are animportant material foundation. Is the foundation of natural resources and strategic economicresources. With continued population growth and rapid economic and social development,human society a substantial increase in demand for water, Water shortages and the resultingwater crisis has become the world socio-economic development process in the face of acommon problem. Therefore it is necessary to make a reasonable assessment of groundwaterresources, find out the real situation, in order to achieve the sustainable use of waterresources.Nalingguole River area is located in the piedmont southern margin of the Qaidam Basin,the northern foot of the Kunlun Mountains, weathering and erosion on the mountain of debrismaterial is surface water into the basin, forming thick Cenozoic sedimentary for groundwateroccurrence provides a good place, it is extremely rich groundwater zone. The main purpose ofthis study is to simulate groundwater flow the area, evaluation of various contexts allowablewithdrawal, optimize mining plan for future groundwater extraction, water allocation andmanagement to provide technical support for the Qaidam circular economy zone industrialand agricultural water source layout and provide the basis for the preliminary design andexploration.This thesis is written in a more systematic way to collect nalingguole river piedmontplains existing meteorological, hydrological, geological, hydrogeological data on the basis of,and analysis of groundwater recharge, runoff, drainage and other dynamic features. Determinethe scope of the study area, generalized groundwater system, the establishment ofhydrogeological conceptual model, based on the finite difference method ProcessingMODFLOW software to establish the study area groundwater flow model of the groundwatersystem for numerical simulation of water movement. Use of groundwater numerical model,press C-level precision requirements, the proposed evaluation of two new water sources toallow exploitation of the proposed new water source total mining capacity of52×104m3/d.Two proposed water exploitation, the exploitation of the region’s of water resourcescoefficient of36%, from of water resources extraction coefficient, effective exploitation ofwater resources utilization perspective, two proposed water sources have sufficient resourcesto guarantee. After the establishment of water sources, springs and evaporation excretionchanged significantly, so that the region evaporation decay to48.99×104m3/d, relativeattenuation ratio of43.68%; Taijnar river flow decreased2.641×108m3/a, Utu Meiren riverrunoff decreased0.303×108m3/a. Is a water environment, ecological environment canwithstand the ratio does not cause a big water environment, ecological and environmentalproblems.