基于FRAGSTATS的区域土地生态质量综合评价研究——以江苏省宜兴市为例

Study on Evaluation of Land Ecological Quality Based on FRAGSTATS——A Case of Yixing, Jiangsu Province

在GIS技术支持下,采用FRAGSTATS软件,从土地生态系统的景观特征、生态服务功能和社会经济效益3个方面建立指标体系和测度模型,并将指标协调度引入模型中,以江苏省宜兴市为例,对区域土地生态质量进行了综合评价。研究结果表明:宜兴市各镇土地的景观特征、生态服务功能和土地利用的社会经济效益各具特点和优势,借鉴评价结果能更好地定位各镇发展功能,保证经济发展和生态保护双赢;土地生态综合评价能更全面地表征评价区域的土地生态特点和质量;利用GIS技术和FRAGSTATS软件,可增强评价的操作性和实用性。

Based on GIS technology, a more comprehensive evalution system of land ecological quality, which includs three aspects： landscape features, ecological services and social and economic benefits, is used to establish with land use data and the FRAGSTATS software. The results showed that towns of Yixing had their own advantages and characteristics in landscape features, ecological services and social and economic benefits. Different towns can play different functions with the references of evaluation results. The evaluation system is more comprehensensive to show the characteristics of the land area, and GIS and FRAGSTATS software make the system more operable and practical.