| 云顶山草本植物功能群研究 |
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| 引用本文： | 刘建荣.云顶山草本植物功能群研究[J].北京林业大学学报,2017,39(9):76-82. |
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| 作者姓名： | 刘建荣 |
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| 作者单位： | 山西关帝山国有林管理局 |
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| 基金项目： | 科技部科技基础性工作专项 |
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| 摘 要： | 植物功能群是植被生态学研究的重要领域之一。通过对植物功能群的研究有助于揭示植物群落的结构和功能，了解植物群落的物种多样性、功能多样性、谱系多样性和演替规律，同时，可为植被恢复和重建提供科学依据。根据野外样方的调查资料，采用Fisher精确检验和Spearman秩相关系数检验，并结合聚类分析对山西云顶山自然保护区草本植物优势种的植物功能群进行了研究。结果表明:1)Fisher's精确检验结果表明，有46个种对正关联极显著(P＜0.01)，有5个种对负关联极显著(P＜0.01)；有24种对正关联显著(P＜0.05)，有10个种对负关联显著(P＜0.05)；有996个种对关联不显著(P>0.05)。2)Spearman秩相关系数检验有72个种对正相关极显著(P＜0.01)，有9个种对负相关极显著(P＜0.01)；有33种对正关联显著(P＜0.05)，有8个种对负关联显著(P＜0.05)；有959个种对相关不显著(P>0.05)。3)经Fisher精确检验关联不显著(P>0.05)的种对(996)占总种对的92.14%，而经Spearman秩相关系数检验相关不显著(P>0.05)的种对(959)占总种对的88.71%，这意味着草本植物优势种间的生态位存在较为明显的分化。4)综合Fisher精确检验和Spearman秩相关系和聚类分析的结果，将云顶山自然保护区草本植物划分为5个功能群:亚高山草甸植物功能群、中山草丛植物功能群、低山草丛植物功能群、森林和灌丛植物功能群和森林植物功能群。云顶山植物功能群与植物群落类型、生境、植物生活型和生态位等有密切关系。
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| 关 键 词： | 云顶山 Fisher精确检验 Spearman秩相关系数 聚类分析 植物功能群 |
| 收稿时间： | 2017-03-10 |
Plant functional groups of the herbs of plant communities in Yunding Mountain,Shanxi of northern China |
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| LIU Jian-rong.Plant functional groups of the herbs of plant communities in Yunding Mountain,Shanxi of northern China[J].Journal of Beijing Forestry University,2017,39(9):76-82. |
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| Authors: | LIU Jian-rong |
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| Institution: | Guandishan State-Owned Forest Administration of Shanxi, Wenshui, Shanxi, 032104, P.R. China |
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| Abstract: | The plant functional group ( PFG) is one of the important fields in vegetation science research, and is a basis for exploring the structure and function of plant community and analyzing the succession and species diversity, functional diversity and phylogenetic diversity of plant community; moreover, it could provide the theoretical basis for vegetation restoration. Based on the dataset investigated from the field, 61 plots and 207 species were recorded in Yunding Nature Reserve, Shanxi of northern China, among which 47 herb species were regarded as dominant species, and the PFG of 47 herb dominant species was studied by Fisher's exact test and Spearman's rank correlation analysis with clustering analysis ( median method) , respectively in order to achieve the division of the PFG in this mountain. The results indicated that:1 ) There were 46 species-pairs being highly positive association ( P<0. 01 ) and 5 species-pairs being highly negative association ( P<0. 01 ) ,24 species-pairs being positive association ( P<0. 05 ) and 10 species-pairs being highly negative association ( P<0. 05 ) and 46 species-pairs being highly positive association ( P<0. 01 ) , 996 species-pairs being not significant association ( P>0. 05 ) by Fisher's exact test. 2) There were 72 species-pairs being highly positive correlation ( P <0. 01 ) and 9 species-pairs being highly negative correlation ( P<0. 01 ) ,33 species-pairs being positive correlation ( P<0. 05 ) and 8 species-pairs being highly negative correlation ( P<0. 05 ) , 959 species-pairs being not significant correlation (P>0. 05) by Spearman's rank correlation analysis. 3)The species-pairs being not significant association ( 996 ) accounted for 92. 14% in the total species-pairs by Fisher's exact test, and the species-pairs being not significant correlation ( P>0. 05 ) ( 959 ) accounted for 88. 71% in the total by Spearman's rank correlation analysis. It suggested that the niche among those species had obvious differentiation and the sensitivity of the latter was more than the former. 4 ) Based on the results of species relationship by Fisher and Spearman combining the clustering results, the PFG was divided into 5 groups, including PFG in the subalpine area, PFG in the lower elevation areas, PFG in the herb layers of the forests and shrubs, PFG in the herb layer of the forests and the PFG in the herb communities of the middle elevation areas. Based on the above results, it is suggested that the PFG is closely related with the community type, habitat, life type and niche. |
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| Keywords: | Yunding Mountain Fisher's exact test Spearman's rank coefficient clustering analysis plant functional group |
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