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华北落叶松人工林林分密度对林内草本多样性的影响

标题: 华北落叶松人工林林分密度对林内草本多样性的影响
英文标题: Effects of forest density on forest herbs diversity in Larix principic-rupprechtii plantation
作者: 赵建生,杨新兵,田超
英文作者: ZHAO Jian-sheng1,YANG Xin-bing2,TIAN Chao2(1 Beidashan Forest Farm of Chengde,Chengde 067450,China,2 College of Forest,Agricultural University of Hebei,Baoding 071000,China)
出版时间: 2012-01-01
机构: 河北农业大学
关键词: 华北落叶松,林分密度,多样性指数,草本生物量
英文关键词: Larix principic-rupprechtii,stand density,diversity index,herbage biomass
刊名: 河北林果研究
英文刊名: Hebei Journal of Forestry and Orchard Research
ISSN: 1007-4961
卷号: 004
基金: ^A公益性行业科研专项经费^B200804022F^D1%^A河北省林业厅科技项目^B^D2
页码: 385-388
分类号: S718.5
摘要: 本文以冀北山地6种不同密度的华北落叶松人工林为研究对象,研究了不同林分密度对林下草本植物多样性的影响.结果表明:林下草本植物多样性指数随林分密度的增大而减小,600株/hm2密度的林分林下草本植物物种数、草本生物量、Menhinick丰富度指数、Simpson和Shannon-Wiener多样性指数及Pielou均匀度指数均最大.
英文摘要: In the northern mountain areas of Hebei Province,six different densities of Larix principis-rupprechtii plantation and the different stand density influence on understory plant diversity were studied.The results showed that the diversity index of herbage decreased with the increase of stand density,the 600 trees per hectare stand was the largest at species number,herbage biomass liveweight,Menhinick rich index,Simpson and Shannon-Wiener diversity index and Pielou evenness index.