期刊文献+

草甸和沼泽植物群落功能多样性与生产力的关系 被引量:16

Relationship between functional diversity and productivity in meadow and marsh plant communities
收藏 分享 导出
摘要 功能多样性-生产力关系研究结果支持质量比假说和多样性假说,但对于这两种假说的适用条件尚有争议。通过对吉林省西部草甸和沼泽植物群落的地上生物量、2个物种多样性指标(物种丰富度和Shannon-Weaver指数)、7种植物性状的两类功能多样性指标(群落权重均值和Rao二次熵),以及土壤环境因子进行调查测量,研究了群落功能多样性与生产力的关系。结果表明:1)功能多样性与生产力的关系比物种多样性与生产力的关系更为密切;2)功能群落权重均值解释生产力变异的能力好于Rao二次熵,即优势物种对群落生产力的影响作用更大;3)水淹条件影响着功能多样性与生产力的关系,以群落权重均值为基础的质量比假说适于解释草甸群落功能多样性与生产力的关系,而以Rao二次熵为基础的多样性假说适于解释有强烈环境筛(水淹)的沼泽群落功能多样性与生产力的关系。 Aims There are two hypotheses on the mechanism of functional diversity driving ecosystem processes:one is the mass ratio hypothesis based on dominant species, and the other is the diversity hypothesis based on ecological niche. Both hypotheses have been supported by different studies, but their applicability and universality are still controversial. Our objective was to clarify whether the explanatory ability of these two hypotheses to productivity is influenced by the existence of intensive environmental filtering, which was flooding in this study. Methods Three meadow communities and three marsh communities were studied over two years in the Momoge National Nature Reserve in western Jilin Province. The aboveground biomass, species diversity (species richness and Shannon-Weaver index), functional diversity (community weighted mean and Rao’s quadratic entropy), and several environmental factors were compared among different communities. The functional diversity was calcu-lated for seven plant traits. The relationship between diversity index and aboveground biomass was explored by simple linear regression analysis and multiple linear regression analysis with stepwise method. Important findings Both Rao’s quadratic entropy and community weighted mean could explain more variation in community productivity than species diversity. Furthermore, both mass ratio hypothesis and diversity hypothe-sis supported the diversity-productivity relationship. However, the mass ratio hypothesis may play a relatively greater role than the diversity hypothesis, indicating that the ecosystem function mainly depended on the func-tional traits of dominant species. Intensive environment filtering in terms of flooding affected the diver-sity-productivity relationship. The mass ratio hypothesis based on community weighted mean explained more variation of the productivity in meadow communities without flooding filtering, while diversity hypothesis based on Rao’s quadratic entropy explained more variation of the productivity i
作者 吕亭亭 王平 燕红 张稳 廖桂项 姜海波 邹畅林 盛连喜 LU Ting-Ting, WANG Ping, YAN Hong, ZHANG Wen, LIAO Gui-Xiang, JIANG Hai-Bo, ZOU Chang-Lin, SHENG Lian-Xi (1State Environment Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeastern Normal University, Changchun 130117, China, and 2 Administration of Momoge National Nature Reserve, Baicheng, Jilin 137000, China)
出处 《植物生态学报》 CAS CSCD 北大核心 2014年第5期405-416,共12页 Acta Phytoecologica Sinica
基金 国家环境部公益性行业科研专项(2011-467032) 吉林省科技发展计划项目(20130101-101JC)
关键词 生物多样性 质量比假说 群落权重均值 多样性假说 植物性状 Rao二次熵 biodiversity biomass ratio hypothesis community weighted mean diversity hypothesis plant trait Rao’s quadratic entropy
  • 相关文献

参考文献36

  • 1Gamier E, Cortez J, Bill6s G, Navas M, Roumet C, Debussche M, Laurent G, Blanchard A, Aubry D, Bellmann A, Neill C, Toussaint JP (2004). Plant fimctional markers capture ecosystem properties during secondary succession. Ecol- ogy, 85, 2630-2637. 被引量:1
  • 2Tilman D (1997). Distinguishing between the effects of species diversity and species composition. Oikos, 80, 185. 被引量:1
  • 3Diaz S, Cabido M (2001). Vive la difference: plant functional diversity matters to ecosystem processes. Trends in Ecol- ogy & Evolution, 16, 646-655. 被引量:1
  • 4de Bello F, Lep J, Sebasti MT (2006). Variations in species and functional plant diversity along climatic and grazing gradients. Ecography, 29, 801-810. 被引量:1
  • 5Comelissen JHC, Kavorel S, Gamier E, Diaz S, Buchrnann N, Gurvich DE, Reich PB, ter Steege H, Morgan HD, van der Heijden MGA, Pausas JG, Poorter H (2003). A handbook of protocols for standardized and easy measurements of plant functional traits worldwide. Annals of Botany, 51, 335-380. 被引量:1
  • 6Wacker L, Baudois O, Eichenberger-Glinz S, Schmid B (2009). Diversity effects in early- and mid-successional speciespools along a nitrogen gradient. Ecology, 90, 637-648. 被引量:1
  • 7Grime JP (1997). Biodiversity and ecosystem function: the debate deepens. Science, 277, 1260-1261. 被引量:1
  • 8Tilman D (2001). Functional diversity. Encyclopedia of Biodi- versity, 3, 109-120. 被引量:1
  • 9Mittelbach GG, Steiner CF, Scheiner SM, Gross KL, Reynoldes HL, Waide RB, Willig MR, Dodson SI, Gough L (2001). What is the observed relationship between species richness and productivity? Ecology, 82, 2381-2396. 被引量:1
  • 10Hooper DU, Vitousek PM (1998). Effects of plant composition and diversity on nutrient cycling. Ecology Monograph, 68, 121-149. 被引量:1

二级参考文献182

共引文献285

同被引文献224

引证文献16

二级引证文献52

论文智能改写系统
维普数据出版直通车
投稿分析
职称考试

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈