南水北调中线初期引汉工程经济效益初探

PRELIMINARY ANALYSIS ON ECONOMIC EFFECT IN THE PRIMARY PERIOD WATER DIVERSION FROM THE HANJIANG RIVER OF THE MIDDLE ROUTE IN SOUTH-TO-NORTH WATER TRANSFER PROJECT

南水北调是补充华北地区新水源的有效途径之一。“中线”初期引汉工程是从长江支流汉江调水,渠线跨越汉江、淮河、黄河、海河四大水系,直达北京市。引汉水源是丹江口水库。该库集流面积95200平方公里,多年平均年径流量380亿立米,已建成初期规模。坝顶高程162米,正常蓄水位157米,总库容174.5亿立米。根据长江流域规划办公室“南水北调中线初期引汉工程规划阶段性报告”(1984年6月),总干渠自陶岔引水闸引水。

The Middle Route in South-to-North water transfer is one of the effective way to increase the water source for Huabei region in China, According to the plan of the water diversion from the Hanjiang River in the primary period, the mean annual volume of the water transfer is about 10 billion m3.It will give priority to the water supply for industrial development in the eleven cities along the channel. The irrigated area will be increased about 810,000 hectares. By the way, it will offer advantages for navigation, generation of electric power and fish-breeding etc.This paper tries to analyze the economic effect of the Middle Route Transfer, The results are. Ratio of Benefit-Cost is about 2; and Internal Rate of Return about 14%, These norms give indication of the feasibility of this project,Not only economic development will be advanced in the water consumption region after this project is completed, but some other advantages will be gained in the water supply district because of the compensative works in the Middle and lower reaches of the Hanjiang River,