本文分析了土地利用系统和土地可持续利用的特点,阐述了土地利用的持续性是土地利用适宜性在时间上的扩展,从生态、经济和社会３方面建立了土地可持续利用评价的指标体系。在不同的空间尺度上,土地可持续利用评价的主导因素也不同,从田块—农场—流域或景观—区域或国家—全球,土地利用可持续利用的主要约束因素分别是农业技术—微观经济—生态因子—宏观经济和社会因子—宏观生态因子,依据这一特点,提出了区域土地可持续利用的评价过程。

and sustainable use has become one of important environment issues in the world. It is necessary to have the proper land use technology and an appropriate method for land use evaluation. This paper deals with the development of a new method for land sustainable use evaluation. We attempt to combine the classical land evaluation method with the landscape ecology method. The classical land evaluation method emphasizes the abiotic factors, such as soil, landform,climate and so on, while the landscape ecology method pays more attention to the spatial relation and processes.In the newly proposed evalution system, we select a series of factors as the evalution indices. Some of the factors reflect the quality, attributes and the use process of the land; others are ecologic, economic and social factors that restrain the land sustainable use. At last, a model of land sustainable use evaluation is given.