The Research Of Resource Appropriation By Solid Waste Of Shenyang

During "the tenth five-year plan" stage, the national economical level strengthened obviously, but it was an important problem that the environmental pollution and the consumption of energy resource got more serious in the economical development.The problem of environment is not only the cause of sustainable development, but also the key to the realization of sustainable development. In this problem the most common part is the city waste, which has already appropriated more and more limited resource. It is the most difficult problem we must face in the course of modernization how to treat city waste and reduce its appropriation of resource as much as possible.In this text the appropriation of land resource by solid waste was connected with the indexes of environment pressure, ecological footprint was used to describe the appropriation condition of resource. The principles of the componential method for ecological footprint (EF) calculation were introduced and its mathematical model formulated, then calculated and analyzed the EF of Shenyang's solid waste in 1990～2005. The result of calculation shows that during these years the total numbers of the solid waste in Shenyang were all over 4*106 tons, in 2005 it was even 6.89*106 tons, the reused rates of industrial waste were above 50%, even more than 70% in recent years, which owed to the policy of environment protection sparkplugged by Shenyang and the technology development. From 1990 to 2005, the solid waste ecological footprints of Shenyang developed wavely, and increased yearly from 1999, which indicated that the pressure from solid waste of Shenyang were going high recently and should be controlled. During that time the ecological efficient caused by the solid waste of Shenyang increased from 6.1*104￥/ha in 1990 to 4.2*105￥/ha in 2005, meaning that in 2005 when one ha ecological footprint was created by waste,4.2*105￥GDP would be created at the same time, which indicated that the utilized efficiency of resource in Shenyang got higher obviously. Forecast the number of solid waste for the next five years, it indicates that it will keep high rise, to 2010, the number of industrial waste will be above 6*106 tons, the total number of Shenyang will even be more than 8*106 tons, and so relative policies and measures should be taken to control the solid number and protect the environment.