土地可持续利用的系统特征与评价

土地利用可持续性的评价是土地可持续利用研究的核心。以驱动力-状态-响应模型为基础，从状态指标和响应指标两种类型，自然、社会、经济、技术四个方面构建了土地利用可持续性评价指标体系和评价过程，并且应用于唐山地区1991-1999年土地利用持续性评价，结果发现：虽然近十年来唐山地区土地利用持续性在升高，但它是建立在经济快速发展和付出生态环境代价基础上的。

Systematic Analysis and Assessment on Sustainable Land Use

Being sustainable both on spatial and temporal dimensions,sustainable land use system is a typically complicated system composed by natural,social and economical components,which has special attributes of systematic complication,structural openness,spatio|temporal dynamics and multi|objects.Driving Force|State|Response analysis method is useful to probe into multi|act and dynamics of its components.Sustainability assessment is the core to sustainable land use study.In this paper,the authors apply Driving Force|State|Response analysis method to construct assessing indicator system,which can be classified into %status quo% and response indicators,composed by natural,social,economical and technical aspects.Then the authors design assessing process on sustainable land use.At last,the indicator system and process are applied in Tangshan Region from 1991 to 1999.The results show that the general sustainable degree of land use in the study case has been rising,which is resulted from great economic growth and natural cost.