西北林学院学报2026，Vol.41Issue(1)：37-47,69,12.DOI:10.3969/j.issn.1001-7461.2026.01.04
白于山区典型植被类型植物的物种多样性研究
Species Diversity of Typical Vegetation Communities in Baiyu Mountain Area
摘要
Abstract
Through the investigation of typical vegetation communities in the Baiyu Mountain area,scientific basis is provided for the biodiversity conservation and vegetation restoration of the Baiyu Mountain area.Based on extensive review of relevant materials of the Baiyu Mountain area and summary of regional scien-tific research achievements,the line transect survey method was adopted,and 37 representative sample plots were selected to conduct the investigation of community vegetation diversity.The analysis based on the APG classification system shows that:1)There are 35 families,83 genera and 105 species of plants in the Baiyu Mountain area,including 74 wild species and 31 cultivated species,accounting for 70.5%and 29.5%respectively.Among them,there are 2 families,4 genera and 6 species of gymnosperms,and 33 families,79 genera and 99 species of angiosperms.Among the angiosperms,there are 30 families,69 genera and 88 species of dicotyledons,and 3 families,10 genera and 11 species of monocotyledons.2)The order of the number of species within families from large to small is Compositae＞Leguminosae＞Rosaceae＞Gra-mineae＞Amaranthaceae＞Labiatae＞Salicaceae＞Apocynaceae＞Pinaceae＞Cupressaceae＞Nitrariaceae＞Tamaricaceae＞Elaeagnaceae＞Violaceae＞others(1 family,1 genus and 1 species of plants).Rosaceae,Leguminosae,Compositae and Gramineae are the dominant families,contributing 48.57%of the plant di-versity.3)The types of vegetation under different site conditions show the change pattern of mound＞ra-vine＞ridge＞gully＞ravine＞plateau＞floodplain,and the number of dominant species shows the change pattern of ridge＞mound＞ravine＞ravine＞gully＞plateau＞floodplain.Except for floodplain and plateau,coniferous trees are the dominant species under various site conditions.4)The analysis of species diversity in the Baiyu Mountain area shows that the Patrick richness index(R),Shannon-Wiener diversity index(H),and Simpson diversity index(D)all show the change pattern of herb＞tree＞shrub.The richness of the vegetation community in the Baiyu mountainous area is relatively low,with the herbaceous layer domi-nating the community.In the later stage of vegetation restoration,a phased strategy of"first preserving herbaceous plants to stabilize the site,then introducing shrubs to form shrubs and grasses,and finally mod-erately adding trees"should be followed to gradually build a stable community mainly composed of shrubs and grasses and combined with trees,shrubs and grasses,achieving ecological improvement and enrich-ment.关键词
白于山区/物种多样性/多样性指数Key words
Baiyu Mountain area/species diversity/diversity index分类
农业科技引用本文复制引用
刘喜东,马雅莉,付守平,刘艳什,田亚君,石孟迪,石长春..白于山区典型植被类型植物的物种多样性研究[J].西北林学院学报,2026,41(1):37-47,69,12.基金项目
陕西林业科技创新重点专项(SXLK2023-02-11) （SXLK2023-02-11）
陕西林业科技创新青年人才培育专项(SXLK2023-06-6) （SXLK2023-06-6）
陕西省林业科学院科技创新计划项目(SXLK2021-0104) （SXLK2021-0104）
榆林市科技计划项目(YF-2022-9,YF-2022-11) （YF-2022-9,YF-2022-11）
国家林业和草原局"揭榜挂帅"项目(202401-04) （202401-04）
陕西省榆林市发展和改革委员会资助项目(2023-YLSFGW-60). （2023-YLSFGW-60）
