Study Of Water Resources Carrying Capacity In Lanzhou Regional

LanZhou is located in our country northwest, which is have the typical continental climate characteristic, water resource shortage, annual amount of precipitation of area controls major part in 400 mm , average runoff is many years do not worth that the whole nation is average 1/3 , per capita to occupy water resource amounts only when the whole nation is per capita 22 %.This dissertation had studied on water resources carrying capacity in Lanzhou , which could offer a vital decision support for deployjing to optimizing water resource , the relation harmonizing area ecological conservation , the lives of the people , the industry and agriculture development and the water resources relations, realizes area sustainable development.Based on the water resources carrying capacity concept and theory in acquaintance water resource is listed in the main body of a book, being guided by sustainable development viewpoint, is take LanZhou water resource supply and demand current situation as basis , is take Lan Zhou society economic growth trend as background, is forecast the routine trend and is mix up to decide synthetically to be tied in wedlock each other, having developed a parameter with a view of appropriate adjustment of reality, have forecast the water requirement , the amounts supplying water owing a city in 2005-2020, have analysed the water resource balance of supply and demand. Have chosen per capita water resource but the utilization ratio making use of amounts, per capita the amounts supplying water, water resource, ten thousand yuan of industry output value need a water yield, require the water modulus , life to need the water quota, 7 the valuation appraising a factor , making use of blurred synthesis to decide a model having been in progress to whose water resource load support capability such as cultivated land irrigation rates studies. Have used water resource possibility have problem, and have brought forward the safe countermeasure of LanZhou water resource by analysing forecast result, and specifically for composing in reply at present future. Make use of decision-making to LanZhou water resource develop, have a certain meaning.The paper is divided into seven chapters: The first chapter synthesis elaborated this research goal and the significance, the domestic extra income resources supporting capacity research tendency and the paper research content, the method technology route. Chapterâ…¡briefly introduced the research area physical geography survey, the social economy condition, the water resources characteristic and the present situation. Chapterâ…¢introduced water requirement forecast principle and reckoning , have estimated that LanZhou necessaries the coming 15 water forecasts. Specifically for LanZhou supplies water, current situation , forecast and water resource co-ordination of supply and demand having carried out water supply analyse in chapterâ…£. Chapterâ…¤embarked from the sustainable development angle, the water resource having built LanZhou suitable appraises index system and the blurred overall evaluation model , water resource bears the weight of the valuation having been in progress strenuously to LanZhou over the next 15 years. Chapterâ…¥is the main conclusion and the suggestionthe of this article .