摘要
采用单位成本分析模型对2000-2007年西安市的水环境治理成本进行了核算,并对核算结果从水环境治理成本的总量与结构两方面进行了分析。结果表明：在这8 a中,西安市对水环境治理投资的力度不断增大,但分布并不均衡;水环境治理的资金缺口整体上呈下降趋势,并经历了从增大到减小直至基本稳定这一过程;在某一时间点的水环境治理集中投资有其较长时间的环境效应;在这一期间,西安市对工业废水和生活污水的治理投资力度总体上都在增大;2006年实际治理成本占当年所需治理成本比例突然减小（虚拟治理成本占当年所需治理成本比例突然增大）的主要原因均为该年工业废水未达标量增加过多;2004、2005年实际治理成本占当年所需治理成本比例突然减小（虚拟治理成本占当年所需治理成本比例突然增大）的主要原因均为生活污水处理量降低过多。
Based on a unit cost analysis model, cost accounting for the water environment rehabilitation in Xi＇an City from 2000 till 2007 was carried out and analysed in terms of the total costs and their compositions. Results have showed that intensity of the investment to water environment rehabilitation was increasing constantly within those eight years though in imparity. Deficiencies in fund for the water environment rehabilitation presented a downward tendency in general whilst experiencing a process increasing first and then decreasing until reaching basically steady. Intensified investment to the water environment rehabilitation at one moment revealed longer environmental effects. The intensity of investment to controls on industrial wastewater and domestic sewage was increasing on the whole in Xi＇an City in that period. A sudden drop of actual control cost in proportion to the needed one （a sudden rise in the ratio of virtual control cost to the needed one） in 2006 was mainly due to the excessive increase in the volume of incompatible industrial effluents, whilst such sudden drops in 2004 and 2005 were both due to the excessive decrease in the amount of treated domestic sewage.
出处
《上海环境科学》
CAS
CSCD
2011年第1期41-46,共6页
Shanghai Environmental Sciences
基金
陕西省自然科学基础研究计划项目，编号：SJ08ZT07-2
关键词
区域
水环境
环境治理成本
核算
西安市
Region Water environment Environment rehabilitation cost Accounting Xi＇an
