林分密度对人工油松林林下植物多样性的影响  

Impact of stand density on plant diversity under artificial Pinus tabulaeformis

作　　者：郭敬丽[1] 崔立志[1] 赵会艳[1] 路芳[2] GUO Jingli;CUI Lizhi;ZHAO Huiyan;LU Fang(Mulanweichang National Forestry Administration of Hebei Province,Weichang 068450,China;Pest and Disease of Forestry and Orchard Control Station of Hengshui City,Hengshui 053000,China)

机构地区：[1]河北省木兰围场国有林场管理局,河北围场068450 [2]衡水市林果病虫害防治检疫站,河北衡水053000

出　　处：《林业与生态科学》2018年第3期275-280,共6页Forestry and Ecological Sciences

基　　金：国家林业局948引进国际先进林业科学技术项目(2015-4-21);河北省林业科学技术研究项目(1305448)

摘　　要：为了给油松人工近、成熟林调整经营提供依据,以河北省木兰围场国有林场管理局阴坡3种不同密度39a油松人工林为研究对象,采用样方调查法对其林下植物多样性进行了统计分析,结果表明:林分密度为2 010~2 033株/hm^2的林下植物多样性最好,丰富度为38,Simpson多样性指数为0.69;研究区内阴坡近熟人工林林分密度宜控制在2 010~2 033株/hm^2。In order to provide a theoretical support for managing the near mature forest and mature forest of artificial Pinus tabulae formis by stand density control. Plant diversity under the 39 year old Pinus tabulae formis plantation on the shady slope in Mulanweichang Forestry Administration of Hebei were studied, and the plant diversity by the quadrat survey procedure was investigated and analyzed. The results showed that the maximum species richness and Simpson index of diversity were 38 and 0.69, respectively. They all occurred in stand density of 2 010- 2 033 tree/hm2. The stand density should be controlled in 2 010- 2 033 tree/hm2 in this area .

关 键 词：林分密度 人工林 油松 生物多样性 

分 类 号：S791.254[农业科学—林木遗传育种] S756[农业科学—林学]