阿拉善盟国家级重点公益林区群落组成与多样性分析研究

Community Composition and Diversity Analysis of State Key Public Welfare Forests in Alashan League

以阿拉善盟国家级公益林为研究对象,利用2008-2009年阿拉善公益林区植物调查资料为基础,从植物群落特征和生物多样性2个方面入手,运用群落生态学、景观生态学的方法和手段,对荒漠植物群落的组成、结构和生物多样性进行了初步研究,得到如下结论:阿拉善公益林区植物种相对比较单一,共有85种,属26科75属,其中菊科17种,藜科13种,豆科11种,禾本科10种,其他各科均不足5种,前面的4科合计占总种数的60%;荒漠植物群落的组成因地而异,不同的生态区存在不同的优势植物种,整体而言主要以胡杨、柽柳、梭梭、白刺、霸王、沙冬青、蒙古扁桃等为优势种。

Taking the state public welfare forests in Alashan League as the research object,based on the investigation materials of public welfare forests in Alashan League from 2008 to 2009,a preliminary study on the composition,structure and biodiversity of desert plant community has been made by use of community ecology and landscape ecology started with community chacteristics and biodiversity.The results show that there are 85 kinds of plants belonging to 26 families and 75 genera,among them,17 species for Compositae,13 species for Chenopodiaceae,11 species for Leguminosae,10 species for Gramineae,other subject is less than 5 species,and Compositae,Chenopodiaceae,Leguminosae and Gramineae occupy 60 percent of the total species.The composition of desert plant community is different with the place.There are different dominant plant species in different ecological areas.In a whole,the dominant plant species are Populus euphratica,Tamarix chinensis,Haloxylon ammodendron,Nitraria sibirica,Zygophyllum xanthoxylum,Ammopiptanthus mongolicus,Prunus mongolica,and so on.