| 南岭自然保护区常绿阔叶林枯立木数量特征分析 |
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| 引用本文： | 张璐,贺立静,区余端,苏志尧.南岭自然保护区常绿阔叶林枯立木数量特征分析[J].福建林学院学报,2012(1):64-69. |
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| 作者姓名： | 张璐 贺立静 区余端 苏志尧 |
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| 作者单位： | 华南农业大学林学院;农业部生态农业重点开放实验室;琼州学院生物科学与技术学院 |
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| 基金项目： | 广东省自然科学基金资助项目(9451064201003716);广东省林业科技创新专项(2010KJCX012-02);华南农业大学校长科学基金资助项目(2009K026) |
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| 摘 要： | 采用典型取样法,对南岭国家级自然保护区常绿阔叶林枯立木数量特征进行了研究。结果表明:(1)南岭国家级自然保护区0.9 hm2的常绿阔叶林样地共有枯立木59株,27种,分属于16科23属。优势科为山茶科、壳斗科、大戟科和樟科。白锥、马尾松、红背锥、黄樟、青檀的重要值之和占样地枯立木总重要值的60%以上。(2)不同保护条件下,南岭国家级自然保护区常绿阔叶林枯立木数量特征表现不一,并非保护程度越高枯立木数量优势越明显。受保护条件最弱的试验区枯立木丰富度、多度、总胸高断面积和径级结构都最小,保护条件较好的缓冲区和核心区枯立木径阶分配比较均匀,但缓冲区枯立木的总胸高断面积却比核心区的多。(3)多响应置换过程分析和指示种分析揭示,枯立木对群落生境有明显的指示作用。不同保护条件下有不同的枯立木指示种(P<0.05)。
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| 关 键 词： | 枯立木 物种组成 数量特征 径级结构 南岭自然保护区 |
Quantitative characters of standing dead trees of the evergreen broadleaved forest in Nanling National Nature Reserve,Guangdong,China |
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| ZHANG Lu,HE Li-jing,OU Yu-duan,SU Zhi-yao.Quantitative characters of standing dead trees of the evergreen broadleaved forest in Nanling National Nature Reserve,Guangdong,China[J].Journal of Fujian College of Forestry,2012(1):64-69. |
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| Authors: | ZHANG Lu HE Li-jing OU Yu-duan SU Zhi-yao |
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| Institution: | 1,2(1.College o f Forestry,South China Agriculture University,Guangzhou,Guangdong 510642,China; 2.Key Laboratory of Ecological Agriculture of Ministry of Agriculture,Guangzhou,Guangdong 510642,China; 3.College of Bioscience and Biotechnology,Qiongzhou University,Sanya,Hainan 572022,China) |
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| Abstract: | Using the classic survey method,quantitative characters of standing dead trees of 3 forest communities under different protection regimes i.e.,the experimental area,the buffer area and core area,respectively,each represented by 30 plots,in Nanling National Nature Reserve in Guangdong Province were studied.The results showed that:(1) 57 stems,29 species in 23 genera and 15 families of standing dead trees were found in the 0.9 hm2 plot.Dominant families of the flora were Theaceae,Fagaceae,Euphorbiaceae,Lauraceae.The total of important value of Castanopsis fabric Hance,Pinus massoniana Lamb.,Castanopsis fargesii Franch.,Cinnamomum parthenoxylon(Roxb.) Kost.,Pteroceltis tatarinowii Maxim.account for more than 60% of the whole important value.(2) There was significant difference in quantitative characters of standing dead trees under different protection conditions.It is difficult to conclude that quantitative characters of standing dead trees with higher protection are better.The experimental area with the least protection,had the least species richness,abundance,total basal area,and size-class structure of standing dead trees than the other two.The buffer area and core area with higher protection had uniform size-class structure of standing dead trees,while the total basal area of standing dead trees of buffer area was more than that of core area.(3)The analysis of multi-response permutation procedures(MRPP) and indicator species analysis(ISA) identified that standing dead trees had a significant influence on the community habitat.There were different indicator species under different protection conditions. |
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| Keywords: | standing dead trees species composition quantitative characters size-class structure Nanling National Nature Reserve |
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