木虫 (著名写手)
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★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ... xkckklyy(金币+190,VIP+0):感谢+佩服!!! 9-11 21:11
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ABSTRACT
Water is the natural resource, the economic resource, as well as the strategic resource, which is the basis of survival and development for human. Beihai City is a serious water shortage city in recent years. The problem of water shortage is serious increasingly in this City. Water resource is an important factor to determine the speed and scale of social development and the "bottleneck" to constrain the economic development in Beihai City. If developed still with the extensive way of using water, total consumption of water will be much higher than carrying capacity of water resource. Therefore, it is the urgent tasks of Beihai City currently to study on carrying capacity of water resource and resolve the problem of water resource.
"Operate on the basis of water and develop in accordance with water". It is inevitable choice faced by Beihai City that sustainable socio-economic development of Beihai City is supported by the sustainable use of water. In this paper, for providing reference for designing the development planning of Beihai city, we evaluated carrying capacity of water resource, predicted carrying capacity in the future and put forward proposals to solve the problem of water resouce.
First is the establishment of composite, fuzzy, and comprehensive evaluation model for carrying capacity of water resource. Using the characteristic evaluation index system of Beihai city and 2007 as the current years, carrying capacity of water resource in Beihai City was evaluated. The result was .
In the current years, carrying capacity of water resource in Beihai was at a lower level, close to the critical state of quasi-non-bearing, and the relationship between people and water was in potential danger.
Then, combining gray prediction method with trend forecasting method, the balance of water supply and demand in Beihai was predicted in the planning year 2015 and 2020. If the level of using water was enhanced modestly and GDP of million Yuan was reduced, the carrying index of water would increase significantly, but still less than a supply-demand balance.
Finally, strategy of enlarging carrying capacity of water was pointed out. They are improving efficiency of using, adjusting the industrial structure, water reuse, utilization of brackish water, in which increasing efficiency of using is the core. Using several strategies together, supply and demand balance and harmony between human and water can achieve entirely.
When everybody has been starting with ourselves, cherished every drop of water, used water scientifically and efficiently, agriculture has become the water-saving agriculture, industry has become water-saving industry ... ... water resource would be the sustainable, society and economy could develop sustainablly, tomorrow's Beihai city would be beautiful!
[ Last edited by jw227 on 2009-9-10 at 20:48 ] |
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