摘要
河口滨海湿地生态服务功能突出,生境脆弱易损,研究其生态脆弱性对滨海湿地生态环境保护与管理具有重要意义。本文以辽河口滨海湿地为例,基于“干扰-敏感-恢复”评估框架,选取17个指标,构建滨海湿地生态脆弱性评价指标体系,以GIS技术为支撑,综合运用插值法、综合指数法,探究辽河口滨海湿地生态脆弱性空间分布特征,分析生态脆弱性变化的影响因素。结果表明:入海河口污染、河口地区人类开发活动和自然淤涨对河口滨海湿地生态脆弱性的影响较为突出;2014年辽河口滨海湿地生态脆弱性总体态势良好,区域生态脆弱性指数为1.67,整体处于不脆弱状态;空间上,辽河口滨海湿地生态脆弱性表现为中部高于四周,由入海河口向外逐步减弱的格局特征。
The ecological service function of the estuary coastal wetland is prominent,while its habitat is fragile and vulnerable.Studying its ecological vulnerability is of great significance to the protection and management of coastal wetland ecological environment.Taking Liao Estuary coastal wetland as an example,based on the evaluation framework of"interference-sensitivity-restoration",17 indicators are selected to establish the evaluation index system of coastal wetland ecological vulnerability.Supported by GIS technology,the spatial distribution characteristics of ecological vulnerability and the influencing factors of ecological vulnerability change of Liao Estuary coastal wetland are explored by using interpolation and comprehensive index method.The results show that the impact of estuarine pollution,human development activities and natural siltation on the ecological vulnerability of estuarine wetlands are more prominent.In 2014,the ecological vulnerability of the coastal wetland in Liao Estuary was in a relatively good state.The regional ecological vulnerability index was 1.67,which is in an overall non-fragile state.Spatially,the ecological vulnerability of coastal wetland in Liao Estuary was characterized by the pattern that the central part higher than the surrounding area,and gradually weakened from the estuary to the outside.
作者
齐玥
付元宾
王娜
吴楠
马恭博
高奕康
孙永光
QI Yue;FU Yuanbin;WANG Na;WU Nan;MA Gongbo;GAO Yikang;SUN Yongguang(National Marine Environmental Monitoring Center,Dalian 116023,China;National Marine Data and Information Service,Tianjin 300171,China;Island Research Center,Ministry of Natural Resources,Pingtan 350400,China)
出处
《海洋通报》
CAS
CSCD
北大核心
2020年第2期257-265,共9页
Marine Science Bulletin
基金
海洋公益性行业科研专项(201405007)。
关键词
滨海湿地
生态脆弱性
干扰-敏感-恢复模型
辽河口
coastal wetland
ecological vulnerability
interference-sensitive-recovery model
Liao Estuary
