吴旗柴沟流域植被物种多样性研究

为了解吴旗县植被自然恢复的基本过程及其物种多样性变化,对该县柴沟流域封禁多年的植物群落进行了研究,结果表明:柴沟流域植物种主要以猪毛蒿、达乌里胡枝子、赖草、铁杆蒿为主,阳坡的植被演替规律为猪毛蒿+狗尾草+华虫实→赖草+猪毛蒿(达乌里胡枝子、铁杆蒿、隐子草)→达乌里胡枝子+赖草(百里香、冷蒿、角蒿、铁杆蒿),阴坡植被恢复的演替规律为猪毛蒿(达乌里胡枝子、赖草)→铁杆蒿(冷蒿)。柴沟流域阴坡群落的物种丰富度、多样性、均匀度都较高,阳坡较低,混交林地的丰富度最大、均匀度最小。

Study on Diversity of Vegetation Species of Chaigou Watershed in Wuqi County

In order to understand the basic process of natural rehabilitation of vegetation and variations of diversity of species of Wuqi County,it studies the plant community that had been banned for years in Chaigou Watershed of the county.The outcomes show that the plants of the watershed mainly are Artemisia scoparia、Lespedeza davurica、Leymus secalinus、Tripolium vulgare,the succession rule of vegetation on the south slopes is Artemisia scoparia+Setaria viridis+Corispermum stauntonii→Leymus secalinus+Artemisia scoparia(Lespedeza davurica、Tripolium vulgare、Cleistogenes squarrosa)→Lespedeza davurica+Leymus secalinus(Thymus mongolicus、Artemisia frigida、Incarvillea sinensis、Tripolium vulgare)and the succession rule of vegetation on the north slopes is Artemisia scoparia(Lespedeza davurica、Leymus secalinus) →Tripolium vulgare(Artemisia frigida).All the degrees of abundance,diversity and equitability of species of community on the north slopes of the watershed are higher,that of the south slopes lower and the abundance degree of the mixed forest region is the maximum and the degree of equitability minimum.