荆州市西郊乡村沟渠湿地植物群落结构初步研究

对湖北省荆州市西郊乡村沟渠湿地植物种类、数量特征、物种多样性指数和植被类型进行了初步研究.结果表明:沟渠岸边植物种类分属17科35属39种,群落结构水平分布格局为斑块状;沟渠湿地植物10科16属18种,分为3种生活型,即挺水植物、浮水植物和沉水植物,其中挺水植物占有优势.降水、人为干扰和污染是影响水生和湿生植物群落生长和分布格局的主要因子.

Research on Plant Community Structure of Wetland in Village Ditches in Western Suburb of Jingzhou

Species,quantitative features,diversity index and vegetation type of the plant community of wetland in village ditches in the western suburb of Jingzhou,Hubei province were studied.The results showed that there are 17 families,35 genera and 39 species plants at ditche banks;the horizontal structure of communities showed a patchy distribution;there are 10 families,16 genera and 18 species plants on the wetland of ditches,which are divided into three lifeforms:emerging plant,emersion plant and submerged plant,among which the emerging plant community had a dominant position.Rainfall,human interference and pollution are regarded as the main factors that resulted in the difference patterns and growth form of the communities.