| 对中欧草地系统演替的17年量化研究(英文) |
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| 引用本文： | 张渊媛,Johanna JORG,Carl BEIERKUHNLEIN,薛达元. 对中欧草地系统演替的17年量化研究(英文)[J]. 资源与生态学报(英文版), 2014, 5(2): 139-147. DOI: 10.5814/j.issn.1674-764x.2014.02.006 |
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| 作者姓名： | 张渊媛 Johanna JORG Carl BEIERKUHNLEIN 薛达元 |
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| 作者单位： | [1]中央民族大学生命与环境科学学院,北京100081 [2]拜罗伊特大学生物地理学系、德斟拜罗伊特95447,UniversitaitsstraBe30 [3]环境保护部南京环境科学研究所,南京210042 |
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| 基金项目： | Chinese Scholarship Council （CSC）（ 201206390030）; the China Bureau of Foreign Experts, the Ministry of Education oi China （111 Program, Grant 2008-B08044）, and ＂985 Programme＂ of Minzu University of China （Grant Number MUC98504-14, MUC98507-08）. |
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| 摘 要： | 本文旨在用17年的观测数据检验三个有关草地系统演替的假设:(1)物种多样性在演替早期不断增加;(2)伴随着演替的推进,样方植物群落间的相似度逐渐增加(样方间的差异度随着演替不断降低);(3)在演替早期,植物群落的物种组成有趋同之势。包括植物群落的总体发展、Shannon多度与均度、Bray-Curtis差异度和群落周转率在内的量化统计结果显示:经过早期5年的演替,各样方的物种多样性表现出快速的趋同,多度均值逐渐由8增加至25个物种;同时,所有样方的物种总数由23增加至55个物种,标准方差由4.6降至0.3。此外,样方间的差异度逐渐降低,物种多度与组成呈明显的趋同。停止除草的一个重要效应是,人工设置的由1到16个物种的多样性梯度因物种入侵至多度较低的样地而减弱。
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| 关 键 词： | 草地 植物群落 演替 长期试验 中欧 |
| 收稿时间： | 2014-03-03 |
A Seventeen-Year Quantitative Study of Succession in Central European Grassland |
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| ZHANG Yuanyuan,Johanna JRG,Carl BEIERKUHNLEIN,XUE Dayuan. A Seventeen-Year Quantitative Study of Succession in Central European Grassland[J]. Journal of Resources and Ecology, 2014, 5(2): 139-147. DOI: 10.5814/j.issn.1674-764x.2014.02.006 |
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| Authors: | ZHANG Yuanyuan Johanna JRG Carl BEIERKUHNLEIN XUE Dayuan |
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| Affiliation: | 1.College of Life and Environmental Science, Minzu University of China, Beijing 100081, China;2.Department of Biogeography, University of Bayreuth, Universitätsstraße 30, Bayreuth 95447, Germany;3.Nanjing Institute of Environmental Science, Ministry of Environmental Protection, Nanjing 210042, China |
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| Abstract: | The objective of this paper is to test three main hypotheses in grassland succession by using 17-year observational data： （i） species diversity increases during early pioneering stages; （ii） the similarity rate of experimental plant communities increases along with the succession process （dissimilarity rate among plots decrease with succession age）;and （i i） plant communities in different ifeld plots converge towards a quite similar composition during the initial years of succession. Results draw from quantitative statistics which including： the general development of plant communities, Shannon’s H and E, Bray-Curtis dissimilarity and community turnover, indicate that after first 5 years of succession, species diversity rapidly becomes alike among all the plots. The average species number in al plots increased constantly from 8 to 25. Meanwhile, the total species number for al plots increased constantly from 23 to 55, accompanied by a steady decrease in Standard Deviation （S.D.） from 4.6 to 0.3. Additional y, dissimilarity of al stands in species composition decreased, indicating a clear trend towards a rapid convergence in species richness and composition. The most important effect of cessation of weeding is that the artiifcial diversity gradient from 1 to 16 species gets diminished by immigration in species poor plots. |
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| Keywords: | grassland plant communities succession long-term experiment Central Europe |
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