珍稀植物浙江安息香群落种间生态位及种间联结  

The Interspecific Niche and Interspecific Association of the Rare Plant Styrax zhejiangensis Community

作　　者：吴卫华 吴家森[1] 吴文骁 吕江波 傅国林 张晔华 郑小军 屠娟丽 梅旭东 Wu Weihua;Wu Jiasen;Wu Wenxiao;Lyu Jiangbo;Fu Guolin;Zhang Yehua;Zheng Xiaojun;Tu Juanli;Mei Xudong(Zhejiang A&F University,Hangzhou 311300,P.R.China;Jiande Forestry Bureau;Forest Farm of Jiande City;Jiaxing Vocational and Technical College;Economics,Commerce,Science and Technolgy Bureau of Jingning She Autonomous-county)

机构地区：[1]浙江农林大学,杭州311300 [2]建德市林业局 [3]建德市林场 [4]嘉兴市职业技术学院 [5]景宁畲族自治县经济商务科技局

出　　处：《东北林业大学学报》2024年第12期46-54,共9页Journal of Northeast Forestry University

基　　金：浙江省公益林和国有林场管理总站项目(GYLZ-202405);建德市林业局项目(JDLY-202301)。

摘　　要：对建德市建德林场泷江林区桃花坞浙江安息香(Styrax zhejiangensis)群落植物群落进行调查,依据重要值、生态位宽度、生态位重叠、χ^(2)检验、Spearman相关系数、联结系数等进行分析。结果表明:浙江安息香群落物种组成及群落结构复杂,共有木本植物93种,隶属36科61属,方差比率(V_(R))为2.02,Spearman相关系数检验正负关联比为1.54,种间关系较为协调,群落整体具有较高的稳定性。浙江安息香重要值排在第9位,重要值为2.94%,Levins生态位宽度(B_(L))及Shannon生态位宽度(B_(S))生态位宽度分别为4.7924、2.0039,处于中等水平。浙江安息香与13种植物的Pianka生态位重叠指数大于0.5,其与毛花连蕊茶(Camellia fraterna)、马银花(Rhododendron ovatum)、格药柃(Eurya muricata)的重叠值高于0.8。浙江安息香与细叶香桂(Cinnamomum subavenium)、杜英(Elaeocarpus decipiens)呈显著或极显著负联结,与石栎(Lithocarpus glaber)、毛花连蕊茶、红楠(Machilus thunbergii)、山矾(Symplocos sumuntia)、格药柃等7种植物极显著正联结。A survey was conducted on the plant community of Styrax zhejiangensis in the Taohuawu area of the Longjiang Forest,Jiande Forestry Farm,Jiande City.Analysis was performed based on importance value,niche width,niche overlap,χ^(2) test,Spearman correlation coefficient,and association coefficient.The results showed that the species composition and community structure of the S.zhejiangensis community are complex,comprising 93 woody plant species across 36 families and 61 genera.The variance ratio(V_(R))is 2.02,and the Spearman correlation coefficient reveals a ratio of positive to negative associations of 1.54,indicating that interspecific relationships are relatively harmonious,and the overall community exhibits high stability.S.zhejiangensis ranks 9th in importance value,with an importance value of 2.94%.The Levins niche breadth(B_(L))and Shannon niche breadth(B_(S))are 4.7924 and 2.0039,respectively,indicating a moderate level of niche breadth.The Pianka niche overlap index between S.zhejiangensis and 13 other plant species exceeds 0.5,with overlap values greater than 0.8 for Camellia fraterna,Rhododendron ovatum,and Eurya muricata.S.zhejiangensis demonstrates significant or extremely significant negative associations with Cinnamomum subavenium and Elaeocarpus decipiens,while exhibiting significant or extremely significant positive associations with seven other species,including Lithocarpus glaber,C.fraterna,Machilus thunbergii,Symplocos sumuntia,and E.muricata.

关 键 词：浙江安息香 重要值 生态位宽度 生态位重叠 种间联结 

分 类 号：S793.9[农业科学—林木遗传育种]