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当前位置: 首页 > 文章 > 不同抚育间伐强度对长白山硬阔叶林林下植物多样性的影响 东北林业大学学报 2011,39 (12) 27-29+73
Position: Home > Articles > Effect of Thinning Intensity on Diversity of Undergrowth Plants in a Hardwood Forest in Changbai Mountains Journal of Northeast Forestry University 2011,39 (12) 27-29+73

不同抚育间伐强度对长白山硬阔叶林林下植物多样性的影响

作  者：
柏广新;张命军
单  位：
中国吉林森林工业集团有限责任公司;东北林业大学
关键词：
长白山林区;硬阔叶林;抚育间伐强度;植物多样性
摘  要：
对中国吉林森林工业集团有限责任公司白石山林业局辖区内的硬阔叶林采用30%～40%(T1)、20%(T2)间伐强度(以间伐株数占总株数的百分比计)的均匀间伐处理,以不间伐处理为对照(CK),对间伐2 a后林下的木本、草本植物进行调查,采用Simpson、Shannon-Wiener多样性指数和Pielou均匀度指数进行植物多样性分析,探讨不同间伐强度对硬阔叶林下植物多样性的影响。结果表明:①木本植物,不同间伐强度样地木本植物Simpson多样性指数,从大到小依次为T1样地的、T2样地的、CK样地的,其中T1样地比CK样地的木本植物Simp-son多样性指数高1.7%,T2样地的木本植物Simpson多样性指数略高;不同间伐强度样地木本植物Shannon-Wie-ner多样性指数,从大到小依次为T1样地的、CK样地的、T2样地的,T1样地比CK样地的木本植物Shannon-Wiener多样性指数高5.9%,T2样地比CK样地的木本植物Shannon-Wiener多样性指数低3.6%;不同间伐强度样地木本植物Pielou均匀度指数,从大到小依次为T1样地的、T2样地的、CK样地的,T1样地和T2样地分别比CK样地的木本植物Pielou均匀度指数高8.0%和2.9%。②草本植物,不同间伐强度样地草本植物Simpson多样性指数,从大到小依次为T1样地的、T2样地的、CK样地的,T1样地和T2样地分别比CK样地的草本植物Simpson多样性指数高4.8%和2.9%;不同间伐强度样地草本植物Shannon-Wiener多样性指数,从大到小依次为T2样地的、T1样地的、CK样地的,T2样地和T1样地分别比CK样地的草本植物Shannon-Wiener多样性指数高14.0%、19.2%;不同间伐强度样地草本植物Pielou均匀度指数,从大到小依次为T2样地的、T1样地的、CK样地的,T2样地和T1样地分别比CK样地的草本植物Pielou均匀度指数高6.5%和6.7%。在长白山林区硬阔叶中龄林中,适度间伐能够有效提高植物多样性,且短期内(2 a)较大间伐强度(30%～40%)作用较强。
译  名：
Effect of Thinning Intensity on Diversity of Undergrowth Plants in a Hardwood Forest in Changbai Mountains
作  者：
Bai Guangxin(Jilin Forest Industry Group Co.,Ltd,Changchun 130000,P.R.China);Zhang Mingjun(Northeast Forestry University)
关键词：
Changbai mountains;Hardwood forests;Thinning intensities;Plant diversity
摘  要：
Two thinned sample plots T1(thinning intensity of 30%-40%) and T2(20%) were set up in a hardwood forest at Baishishan Forestry Bureau,Jilin Province.The woody and herbaceous plants under the hardwood forest were surveyed two years after thinning to discuss the effects of thinning on species diversity.The diversity of woody and herbaceous plants was analyzed in terms of Simpson diversity index,Shannon-Wiener diversity index,and Pielou evenness index.Results showed that the Simpson diversity index of the woody plants in T1 was the highest,followed by T2 and CK(unthinned control plot),and the Simpson index of T1 increased by 1.7% and that of T2 slightly increased in comparison with CK.Shannon-Wiener diversity index of the woody plants in T1 was the highest,followed by CK and T2,and the index of T1 increased by 5.9% and that of T2 decreased by 3.6%.Pielou evenness index of the woody plants in T1 was the highest,followed by T2 and CK,and the indexes of T1 and T2 increased by 8.0% and 2.9% respectively.The Simpson diversity indexes of the herbaceous plants in T1,T2,and CK were arranged in descending order,and the indexes of T1 and T2 increased by 4.8% and 2.9% respectively.Shannon-Wiener diversity index of the herbaceous plants in T2,T1,and CK were arranged in descending order,and the indexes of T1 and T2 increased by 14.0% and 19.2% respectively.Pielou evenness indexes of the herbaceous plants in T2,T1,and CK were arranged in descending order,and the indexes of T1 and T2 increased by 6.5% and 6.7% respectively.Reasonable thinning can increase the species diversity of undergrowth plants in the middle-aged hardwood forests in Changbai Mountains,and higher thinning intensity(30%-40%)has a more obvious effect on plant diversity within a short period of time(2 years).

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