摘要
以苏南丘陵区邓下小流域为研究区,针对目前小流域内植被物种多样性状况和水平,选择物种丰富度指数(S)、Shannon-Weiner指数(SW)、Simpson指数(SP)和Pielou均匀度指数(J)作为物种多样性的测度指标,分析不同植物群落结构特征。对流域内现有主要植被类型(茶园、杉木林、马尾松林、毛竹林、水田和旱耕地共6种)以0～10 cm,10～20 cm,20～40 cm和40～60 cm分层挖土壤剖面,分析各植被类型下土壤养分效应,以期为小流域综合治理与植被恢复中植被模式选择提供理论指导。
Taking Dengxia catchment of hilly area in southern Jiangsu province as study area, targeting at the present condition and level of plant species diversity, the indexes of species abundance （S）, Shannon-Weiner （SW）, Simpson （SP） and Pielou（J） were chosen to be determined as measure index of plant species diversity, and the struc-tu- ral characteristics of different plant community were analyzed. And soil profiles of the main existing vegetation types （tea plantation, Cunninghamia lanceolata, Pinus massoniana, Phyllostachys pubescens, paddy field and dry cropland） were dug into 4 layers, 0-10 cm, 10-20 cm, 20-40 cm and 40-60 cm, effects of soil nutrient in different vegetation were analyzed, so to provide theoretical guidance to vegetation restoration and reconstruction at the catch-ment comprehensive management.
出处
《甘肃林业科技》
2008年第3期4-8,共5页
Journal of Gansu Forestry Science and Technology
基金
国家"十一五"林业科技支撑课题(2006BAD03A16)资助
关键词
植物多样性
土壤养分
主要植被类型
小流域
苏南丘陵区
plant diversity
soil nutrients
main vegetation type
catchment
southern Jiangsu hilly region
作者简介
江腊沙（1959-），男，四川成都人，主要从事环境管理工作。E-mail：dpschw@163．com，dpschw@126．com
