高寒草甸不同功能群植被盖度对模拟气候变化的短期响应
Short-term response of functional plant groups abundance to simulated climate change in alpine meadow ecosystems
查看参考文献24篇
|
文摘
|
为研究高寒生态系统植被群落对气候变化的响应,于2007年5月沿青藏高原东北祁连山南坡对海拔3 200 m的嵩草草甸、3 400 m的灌丛草甸、3 600 m的杂草草甸和3 800 m的稀疏植被进行双向移栽试验. 功能群(莎草类、禾本类、豆科类和杂类草)植被绝对盖度的方差分析表明高寒草甸植被群落对气候变化较为敏感. 莎草类盖度与土壤含水量呈负线性相关,禾本类和豆科类分别与土壤含水量和气温呈正线性相关. 海拔与杂类草盖度的二次方程可解释其61%的变异. 非度量多维排序(non-metric multi-dimensional scaling, NMDS)暗示功能群对气候变化的响应具有特殊性. 豆科类和杂类草、莎草类和禾本类存在较弱的盖度补偿效应. 对比早期和模拟降温下的嵩草草甸群落组成,印证其具有较高的稳定性 |
|
其他语种文摘
|
For further understanding the response of alpine plant communities to climate change, we manipulated a reciprocal translocation experiment along the elevation gradients on the south slope of the Qilian Mountains, in the northeast Qinghai-Tibetan Plateau in May 2007. The translocated vegetation comprised 3 200 m of Kobresiameadow, 3 400 m of shrub meadow, 3 600 m of forbs meadow, and 3 800 m of sparse vegetation. Four functional groups (FG) were classified as sedge, graminoid, legume and forbs. An ANOVA of FG abundance showed that alpine plant communities were sensitive to climate change. Sedge cover correlated negatively and linearly with soil water content. Graminoid and legume abundance were linearly related to soil water content and temperature, respectively. The Quadratic equations between forbs and elevation accounted for 61% of variation. NMDS (non-metric multidimensional scaling) indicated that FG responded specially. There was a weak abundance compensation effect between legumes and forbs, sedges, and graminoids. The comparison between the plant community inKobresiameadow under simulated cooling and historical survey, confirmed it was stable |
|
来源
|
草业学报
,2010,19(6):72-78 【核心库】
|
|
关键词
|
双向移栽试验
;
植被绝对盖度
;
功能群
;
NMDS
;
高寒生态系统
|
|
地址
|
1.
成都高原气象所, 四川, 成都, 610071
2.
中国科学院西北高原生物研究所, 青海, 西宁, 810001
3.
日本农林环境技术研究所, 日本, 筑波, 3058604
4.
日本国立环境研究所, 日本, 筑波, 3050053
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1004-5759 |
|
学科
|
普通生物学;植物学 |
|
基金
|
中国气象局成都高原气象研究所高原气象开放实验室基金
;
中国科学院知识创新工程西部行动计划项目
;
中国科学院知识创新工程重要方向项目
|
|
文献收藏号
|
CSCD:4092852
|
参考文献 共
24
共2页
|
|
1.
Harte J. Shifting dominance within a montane vegetation community: Results of a climate-warming experiment.
Science,1995,267:876-880
|
被引
33
次
|
|
|
|
|
2.
Alsos I G. Frequent long-distance plant colonization in the changing arctic.
Science,2007,316:1606-1609
|
被引
15
次
|
|
|
|
|
3.
Walther G R. Ecological responses to recent climate change.
Nature,2002,416:389-395
|
被引
368
次
|
|
|
|
|
4.
IPCC.
Climate change 2007-The physical science basis: Working group I contribution to the fourth assessment report of the IPCC,2007
|
被引
13
次
|
|
|
|
|
5.
公延明. 高寒草原对气候生产力模型的适用性分析.
草业学报,2010,19(2):7-13
|
被引
9
次
|
|
|
|
|
6.
Wookey P A. Ecosystem feedbacks and cascade processes: Understanding their role in the responses of Arctic and alpine ecosystems to environmental change.
Global Change Biology,2009,15(5):1153-1172
|
被引
18
次
|
|
|
|
|
7.
Krner C.
Alpine Plant Life: Functional Plant Ecology of High Montian Ecosystems,1999
|
被引
1
次
|
|
|
|
|
8.
Jagerbrand A K. Plant community responses to 5 years of simulated climate change in meadow and heath ecosystems at a subarctic-alpine site.
Oecologia,2009,161(3):601-610
|
被引
7
次
|
|
|
|
|
9.
李东. 青藏高原高寒草甸生态系统土壤有机碳动态模拟研究.
草业学报,2010,19(2):160-168
|
被引
35
次
|
|
|
|
|
10.
Hart S C. Potential impacts of climate change on nitrogen transformations and greenhouse gas fluxes in forests: A soil transfer study.
Global Change Biology,2006,12(6):1032-1046
|
被引
20
次
|
|
|
|
|
11.
Walker M D. Plant community responses to experimental warming across the tundra biome.
Proceedings of the National Academy of Sciences of the United States of America,2006,103(5):1342-1346
|
被引
70
次
|
|
|
|
|
12.
Hollister R D. The response of Alaskan arctic tundra to experimental warming: Differences between short-and long-term responses.
Global Change Biology,2005,11(4):525-536
|
被引
14
次
|
|
|
|
|
13.
周兴民.
植被与植物检索表:中国科学院海北高寒草甸生态系统研究站,2006
|
被引
2
次
|
|
|
|
|
14.
Walker M D. Community baseline measurements for ITEX studies.
International Tundra Experiment (ITEX) Manual,1996
|
被引
1
次
|
|
|
|
|
15.
Klanderud K. Species-specific responses of an alpine plant community under simulated environmental change.
Journal of Vegetation Science,2008,19(3):363-372
|
被引
5
次
|
|
|
|
|
16.
Read D J. Mycorrhizal fungi as drivers of ecosystem processes in heathland and boreal forest biomes.
Canadian Journal of Botany,2004,82(8):1243-1263
|
被引
11
次
|
|
|
|
|
17.
张俊忠. 东祁连山高寒草地土壤可培养真菌多样性分析.
草业学报,2010,19(2):124-132
|
被引
24
次
|
|
|
|
|
18.
Clarke K R. Non-parametric multivariate analyses of changes in community structure.
Australian Journal of Ecology,1993,18(1):117-143
|
被引
280
次
|
|
|
|
|
19.
Cross M S. Compensatory responses to loss of warming-sensitive plant speices.
Ecology,2007,88(3):740-748
|
被引
2
次
|
|
|
|
|
20.
Klein J A. Experimental warming causes large and rapid species loss, dampened by simulated grazing, on the Tibetan Plateau.
Ecology Letters,2004,7(12):1170-1179
|
被引
129
次
|
|
|
|
|
了解气象卫星更多信息，请访问