摘要
为了维护大辽河口水生态系统的生态功能,实现区域的可持续发展,建立了大辽河口水生态系统功能重要性评价指标体系。运用指标体系评价和专家打分的方法,将研究区划分为低、较低、一般、较高、高5个功能等级.首先对大辽河口的水生态系统单项功能进行评价,然后采用权重加和的方法进行功能重要性的综合评价。最后应用ArcGis软件对结果进行了空间分析。评价结果表明,整个研究区域的水生态系统功能重要性比较高,在空间分布上呈现显著的差异性,其中较高和高级别的区域占据整个研究区域的44.9%。
In order to maintain the ecological services of ecosystems in the Liaohe River and to achieve sustainable development in the region,the evaluation of water ecosystem service importance index system was established.Using the evaluation index system and expert scoring to divide the study area into lower,low,general,high,higher five functional levels.Firstly,we evaluated the single function of water ecosystem.Then we used the method of weight increase to evaluate the function importance comprehensively.Finally,spatial analysis of results was developed by ArcGIS.Evaluation results showed that the importance of aquatic ecosystem function was high in the entire study area;the spatial distribution of Liaohe area was significantly differently;high and higher region accounted for 44.9%.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第9期84-89,共6页
Periodical of Ocean University of China
基金
国家水体污染控制与治理科技重大专项(2008ZX07526-001-02)
辽河河口区大型湿地生态修复关键技术与示范研究项目(2008ZX07208-009)资助
