闽江河口湿地生态脆弱性评价

依据闽江河口湿地生态特性及演化规律，从影响因素、表现因素、胁迫因素方面选择了14个评价指标，对闽江河口典型洲滩湿地脆弱度进行评价．采用层次分析法（AHP）确定权重和专家学者的指标评分，利用综合指数法评价各典型湿地的脆弱度等级，并进行原因分析.结果表明，鳝鱼滩和浦下洲湿地生态脆弱性等级为轻度，蝙蝠洲、道庆洲、芦岐洲和长岸洲湿地生态脆弱度等级为中度．闽江河口湿地具有原生脆弱性，人类活动的强胁迫作用又使其产生了次生脆弱性，人类活动的干扰作用已经逐渐成为脆弱生态环境的主要驱动因素.

Wetlands Ecological Frangibility Evaluation in the Min River Estuary

According to ecological features, including those of evolution, 14 factors, which were classified into three categories, were used to evaluate the ecological frangibility of typical wetlands in the Min River Estuary. The three categories were respectively named impact factors, performance factors and stress factors. The method of Analytic Hierarchy Process （AHP） was used to decide factor weights, and thoughts of related experts and scholars were collected to get scores of various indcators, by which the ecological frangibility rating of typical wetlands in the study area was presented. The results indicated that the wetlands of Shanyu Beach, Puxia Chau were mild rating, while those of Bianfu Chau, Daoqing Chau, Luqi Chau and Chang＇an Chau fell into moderate rating. Although the ecological frangibility of these wetlands was originally caused by natural conditions, with the increase of human interference, human factors have overweighted natural ones and become the control element of environmental fragility of the wetlands.