Sustainability evaluation of regional cultivated land resources is important to guidance of agricultural production. With the aid of GIS techniques, like overlay analysis and multi-factor comprehensive weighing method, suitability evaluation of the cultivated land resources of the Poyang Lake region was conducted using 11 evaluation indices selected from the aspects of resource, environment, economy and society, based on the applicability assessment, field survey and data statistics. Results show that as a whole, the cultivated land resources of the region is quite high in utilization sustainability level, with 69. 05% being high or moderate and only 5. 23% being extremely low or un-sustainable, indicating that the region is strong in agricultural productivity, good in agricultural eco-environment and high in agricultural economic level. The findings of the study may be used as scientific basis for exploitation and protection of the cultivated land resources and restructuring of the agriculture of the region.%以地理信息系统(GIS)叠加分析和多因素综合加权法为技术方法,从资源、环境、经济和社会等四个方面选择11个评价指标,在适宜性评价的基础上,应用实地调查和统计数据对鄱阳湖生态经济区耕地资源利用进行可持续评价.结果表明:鄱阳湖地区耕地资源的可持续利用水平较高,其中高度可持续和中度可持续利用的面积比例达到69.05％,不可持续的只有5.23％,说明鄱阳湖地区农业生产能力较强、农业生态环境较优、农业经济水平较高.研究结果可为区域耕地资源利用与保护、农业结构调整提供科学依据.
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