期刊
PLANT AND SOIL
卷 330, 期 1-2, 页码 215-223出版社
SPRINGER
DOI: 10.1007/s11104-009-0194-8
关键词
Functional groups; Leaf-Height-Seed scheme; Saturated height; Seed size; Specific leaf area; Tibetan Plateau
资金
- National Natural Science Foundation of China [40930533]
- Ministry of Science and Technology of China [2007BAC06B01]
Whether grazing response of species abundance can be predicted by plant functional trait remains a challenge untested in a specific ecosystem. We measured species abundance and relevant functional traits for 30 common component species in a moderately grazed and a control community over 3 years (2005, 2006 and 2007) in a Kobresia capillifolia dominated alpine meadow on the Tibetan Plateau. Our objective was to examine species response to grazing and to test the relationship between the response of species abundance and functional traits in grazed and control habitats. Our results showed: i) in terms of species relative abundance and saturated height (the maximum height of an adult individual), most component species significantly decrease in response to moderate grazing and the effect differed among species and between functional groups. ii) The response of species abundance was significantly negatively correlated with saturated height, but not correlated with specific leaf area or seed size. We concluded that the response direction of species abundance to grazing can be predicted by functional traits, whereas it is a weak predictor of the extent of grazing response in species abundance.
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