期刊文献+

不同施肥处理高寒草甸植物群落物种多样性与生产力的关系 被引量:16

Relationships of species diversity and productivity under the fertilization levels in alpine meadow of the Qinghai-Tibetan Plateau
下载PDF
导出
摘要 以青藏高原东部高寒草甸群落为研究对象,分析不同施肥处理下,高寒草甸植物群落物种多样性与生产力的关系。结果表明,当空间和时间尺度发生变化时,多样性与生产力的关系会随之发生一定的变化。总体模式为,在未施肥和施肥30 g/m2的条件下,多样性与生产力之间呈对数线性递增,在高施肥梯度的条件下,群落结构发生重大改变,多样性与生产力之间呈对数线性递减。在施肥120 g/m2的条件下,则很难预测生物多样性与生产力之间的关系。 Relationships of species diversity and productivity under the fertilization levels in alpine meadow of the Qinghai-Tibetan Plateau were analyzing by taking alpine meadow community as example. The results indicated that the relationships between specie diversity and productivity changes with temporal and spatial scales changes. Specie diversity and productivity showed loglinear increase under unfertilizing and 30 g/me (NH4) 2HPO4 conditions;high fertilizing levels condition,community structure present a significant change,specie diversity and productivity showed significant loglinear decrease. But there was not clear tendency under 120 g/m^2 fertilizing condition.
出处 《草原与草坪》 CAS 2008年第4期34-38,共5页 Grassland and Turf
基金 国家自然科学重大研究计划西部专项项目(90202009)资助
关键词 施肥 高寒草甸 物种多样性 生产力 fertilization alpine meadow specie diversity productivity
  • 相关文献

参考文献11

  • 1Grime J P. Control of species diversity in herbaceous vegetation[J]. Journal of Environmental Management, 1973 (1):151-167. 被引量:1
  • 2Tilman D,Wedin D,Knops J. Productivity and sustain ability influenced by biodiversity in grassland ecosystems [J]. Nature, 1996,379: 718- 720. 被引量:1
  • 3Tilman D, Downing J A. Biodiversity and stability in grasslands[J]. Nature, 1994,367 : 363-365. 被引量:1
  • 4Hector A,Schmid B,Beierkuhnlein C,etal. Plant diversity and productivity experiments in European grasslands [J]. Science, 1999,286 : 1123-1127. 被引量:1
  • 5Naeem S, Thompson L J, Lawler S P, et al. Declining biodiversity can alter the performance of ecosystems[J]. Nature, 1994,368 : 734- 736. 被引量:1
  • 6马克平.生物群落多样性的测度方法[M]..生物多样性研究系列专著Ⅰ生物多样性研究的原理与方法(中国科学院生物多样性委员会)[C].北京:中国科学技术出版社,1994.141-165. 被引量:42
  • 7Guo Q F, Berry W. Species richness and biomass: dissection of the hump-shaped relationships[J]. Ecology, 1998, 79:2555-2559. 被引量:1
  • 8Rosenzweig M L. Species diversity in space and time [M]. Cambridge: Cambridge University Press, 1995. 被引量:1
  • 9Peterson G, Allen C R, Holling C S. Ecological resilience, biodiversity and scale[J]. Ecosystems, 1998(1) : 6-18. 被引量:1
  • 10Connolly J,Wayne P,Bazzaz F A. Interspecific competition in plants: how well do current methods answer fundamental questions[J]. American Naturalist, 2001,157: 107-125. 被引量:1

共引文献41

同被引文献248

引证文献16

二级引证文献214

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