Floristic analysis of coastal wetland plants in Taizhou Bay,Zhejiang, China
In the past 200 years,nearly 20 000 hm2 of coastal wetlands have been formed by enclosing coastal tidal flats in Taizhou Bay.To estimate local biodiversity of the coastal wetland plant communities with different histories after reclamation,a survey of plant species composition from the coast toward the city center was conducted.All the species recorded in this survey were classified by their geographical distribution.Then comparative analysis between the flora from Taizhou Bay and from the whole Zhejiang Province was used.Results indicated that flora from vascular plant communities in the study site were influenced by the reclamation history and soil conditions.Plant richness was high with 380 species,254 genera,and 88 families.Herbs were the dominate group comprising 66.6％ of all plant species.Few endemic species were found,and genera with only one species or a few species were abundant creating high ecological vulnerability in the region.The geographical elements of the flora were complex.Tropic and temperate components were co-dominant in the flora,which reflected a transitional characteristic from the Subtropical Zone to the North Temperate Zone.Salty plants were plentiful with 23 species.With 83 invasive species,this region was also suffering from a biological invasion that was increasing with reclamation time.This founding helps to understanding the biodiversity in the coastal wetland,and provides basic background for local biodiversity conservation.
国家科技期刊平台
NSTL
万方数据
维普
