海岛生态综合评价方法探讨
Studies on comprehensive ecosystem assessment methods of sea islands
摘要
从海岛生态状态及生态服务功能两个方面,探讨了海岛生态综合评价的指标和方法.其中海岛生态状态评价从海岛景观和生态系统两个层次进行分析.前者主要利用3S技术所获取的信息,从宏观角度定量分析海岛景观格局变化;后者从海岛生物和非生物环境两部分,采用与历史资料及相关环境质量标准对比的方法,分析海岛岛陆、潮间带及近海海域生态系统现状.海岛生态服务功能评价则从海岛物质生产、调节功能、支持功能及社会文化功能4个方面,分析海岛生态系统的服务能力.文中提出的海岛生态综合评价的框架、方法,可为海岛生态系统综合评价与管理提供参考. The indices and methods of comprehensive ecosystem assessment of sea islands are discussed in terms of two aspects: ecological status and ecosystem service functions.Island ecological status assessment included island landscape and ecosystems analysis,the former analyzed the change of island landscape configuration quantitatively from macroscopical point of view by 3S technology;the latter,including biological and abiological environment,assessed ecological status of island continent,intertidal and neritic regions by means of comparing historical status and environmental quality critera.Island ecological functions are assessed from the aspects of production,regulation,support and culture functions.This article aims to put forward a basic framework of integrated assessment method on island ecosystem,and provided the foundations for island ecosystem management.