自然资源学报 ›› 2002, Vol. 17 ›› Issue (2): 229-233.doi: 10.11849/zrzyxb.2002.02.016

• 研究报道 • 上一篇    下一篇

城市水资源供需系统优化分析

于书霞, 尚金城   

  1. 东北师范大学环境科学系,吉林长春130024
  • 收稿日期:2001-07-16 修回日期:2001-12-07 出版日期:2002-04-25 发布日期:2002-04-25
  • 作者简介:于书霞(1976~),女,河南许昌人,硕士研究生,研究方向为区域环境规划与管理,已公开发表论文4篇。E-mail: ysxzh@263.net

Optimization of the supply and demand system of urban water resources

YU Shu-xia, SHANG Jin-cheng   

  1. Department of Environmental Science,Northeast Normal University,Changchun130024,China
  • Received:2001-07-16 Revised:2001-12-07 Online:2002-04-25 Published:2002-04-25

摘要: 运用系统动力学的方法,研究了城市水资源供需系统的优化分析。系统中主要包括了人口、工业生产、水资源供应和污染等4个状态变量,其中总可供水量是系统的控制变量;得出水价和水污染整治投资比例是两个关键因素,系统运行结果表明,只有二者相互协调,共同发挥作用,才能保证城市水资源的可持续利用,缺一不可。论文以长春市为例,分析了城市水资源供需系统的动态变化,并提出了解决水资源短缺以及水体污染的控制方案。

关键词: 系统动力学, 水价, 供需系统, 城市水资源

Abstract: This paper uses system dynamics to analyse the structure of water supply and demand system of urban water resources.The supply and demand system contains four level variables,in-cluding population(POP),industrial output (IO),the total supply of water resources(TWQ)and the total quantity of polluted water resources(PWQ).Among them,the TWQ is the dominant one,which is determined by two rate variables,i.e.,the water supply rate and the polluted water pro-duced rate.In the system,water price and the investment for polluted water treatment are the key assistant variables.The functions of these two assistant factors are fully considered.And we can conclude from the outcome of the system that sustainable utilization of urban water resources can be realized if the two factors harmonize with each other.Taking Changchun City as an example,which was one of the cities that water supply was the main factors constraining her development,and water pollution was serious,the paper analyses supply and demand dynamic system of urban water resources,and introduces the scenario to solve these problems.

Key words: system dynamics, water price, supply and demand system, urban water resources