基于模糊综合评价法的中国杭州市湿地种子植物多样性评价

摘要

Based on questionnaires to 30 experts,single factor analysis was conducted respectively on the areal types of genera,the species status,prior protection species,relict genera of glacial epoch and harmful species by using the Delphi method.Furthermore,the wetland spermatophyta diversity in Hangzhou was assessed with the fuzzy comprehensive evaluation method.The assessment results were as follows:the single factor areal types of genera was rated as ' very good ',the species status as ' good ',prior protection species as ' neutral',relict genera of glacial epoch as ' good',and harmful species as 'neutral'; The results in the integrated assessment that the wetland spermatophyta diversity in Hangzhou City was ' good',which indicated that the wetland spermatophyta had played a very important role for ecosystem functioning and services in Hangzhou City.%采用专家评价法,对杭州市湿地种子植物属的分布区类型情况、物种丰富度情况、种的优先保护情况、属的起源古老孑遗情况以及种的有害性情况进行单因子评价,在此基础上,利用模糊综合评价方法,对杭州市湿地种子植物多样性进行评价.结果表明:杭州市湿地种子植物属的分布区类型情况为“非常好”,物种丰富度情况为“好”,种的优先保护情况为“一般”,属的起源古老孑遗情况为“好”,种的有害性情况为“一般”；对杭州市湿地种子植物多样性的综合评价结果为“好”,这表明湿地种子植物对于杭州市生态系统功能及服务作用的发挥起了非常重要的作用.