摘要
金钱松属于国家二级重点保护植物,为能科学有效地对该物种进行保护,对浙江长兴县分布的金钱群落特征进行了研究。本研究利用群落调查方法,在浙江长兴县设置18个面积约为100 m2的样圆,调查群落内的物种组成及其结构特征。结果表明,群落内共有种子植物74种,隶属于37科56属;种属组成较为分散,优势科不明显。Raunkiaer频度定律表现为A>B>C>D>E。重要值结果显示位列前六的物种分别为金钱松、毛竹、栗、苦槠、冬青和盐肤木,其值分别为17.48%、15.86%、4.83%、4.81%、4.43%和4.09%。金钱松群落垂直结构可分为4层,层次结构较为简单。随着群落的进一步发展,金钱松优势地位可能会被毛竹及其他常绿阔叶树种所取代;控制竹类植物的扩张,对保护现存金钱松种群有积极意义。
Pseudolarix amabilis(Nelson)Rehd.is the second state key-protected wild plants.In order to protect this species scientifically and effectively,the community structure of P.amabilis was surveyed in Changxing County,Zhejiang province.Based on the method of phytocoenology,18 circle samples were set to disclose the species composition and feature of community.Results indicated that there were 74 species in the community belonging to 37 families and 56 genera.However,the dominant family was not obvious and the composition of species and genus was fragmentary.The law of Raunkiaer showed A>B>C>D>E.Importance value of top six species were P.amabilis,Phyllostachys edulis,Castanea mollissima,Castanopsis sclerophylla,Ilex chinensis and Rhus chinensis,as following 17.48%,15.86%,4.83%,4.81%,4.43%and 4.09%,respectively.The vertical structure of community could be divided into four layers with simple characteristic.With the development of community,the current dominant position of P.amabilis should be replaced by bamboo or other evergreen broad-leaved trees.To protect the present population of P.amabilis,it was significant to control the expand of bamboo.
作者
刘大伟
南程慧
谢春平
张健
黄晨杨
李浩
Liu Dawei;Nan Chenghui;Xie Chunping;Zhang Jian;Huang Chenyang;Li Hao(Institution of Criminal Science and Technology, Nanjing Forest Police College, Nanjing 210023, China;Key Laboratory of State Forest and Grassland Administration on Wild Life Evidence Technology, Nanjing 210023, China)
出处
《中国野生植物资源》
CSCD
2020年第4期64-67,共4页
Chinese Wild Plant Resources
基金
国家林业和草原局珍稀濒危野生动植物救护与繁育项目-金钱松野外种群恢复策略研究(2019)
江苏省应用型本科院校建设与发展研究课题(2019yl05)。
关键词
金钱松
重要值
物种组成
频度定律
垂直结构
Pseudolarix amabilis(Nelson)Rehd.
Importance value
Species composition
Law of frequency
Vertical structure
作者简介
刘大伟(1983-),博士,讲师,主要从事野生动植物保护与利用研究,E-mail:272756332@qq.com;通讯作者:谢春平(1980-),博士,副教授,主要从事森林生态学研究,E-mail:44583175@qq.com。
