Abstract:

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.

Key words: fuzzy comprehensive evaluation method, wetland, spermatophyta, diversity conservation, Hangzhou City