开发区土地可持续利用系统的结构研究

在提出开发区土地可持续利用概念的基础上，分析了开发区土地可持续利用系统的结构，指出我国现有开发区土地利用系统的结构不合理是引发开发区土地利用问题的根源。实现开发区土地可持续利用，有赖于优化目前的结构，即对开发区土地利用系统的各要素进行优化重组，从而改革其功能，以解决开发区土地利用中出现的各类问题。最后对如何优化开发区土地利用系统的结构进行了初步探讨。

STUDY ON THE STRUCTURE OF SUSTAINABLE LAND USE SYSTEM OF DEVELOPMENT ZONE

Sustainable land use of development zone is to coordinate the relationship between the structure, ratio and spatial distribution of land use types in development zone and local physical characteristics and economic development, by the means of technology and administration. So as to fully bring out the production and environmental service function of land resources in development zone and realize optimum all around benefits including social, economic and ecological aspects. Sustainable land use system of development zone (SLUSDZ) is a typical social, economic and natural integrated ecosystem, and it consists of three sub systems: natural biological subsystem, socio political subsystem, and economic technological subsystem. Through analyzing the structure of SLUSDZ, it shows that irrational structure is the main cause of land use problems, and optimizing the irrational structure is the major way to resolve these problems and realize sustainable land use. The way to optimize structure is to optimize and recompose all the elements of SLUSDZ, so as to change its function and attain the object of resolving all kinds of land use problems. Therefore, above three subsystems are optimized and recomposed to form four secondary subsystems: classification subsystem, evaluation subsystem, policy and measure subsystem, and technology subsystem. The former two secondary subsystems have the function of identifying land use problems, and the latter two have the function of resolving these problems. These subsystems interplay and inter link so as to make system as a whole and have special function.