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Yu Liu, Zhen-heng Liu, Lei Deng, Gao-lin Wu. Species diversity and functional groups responses to different seasonal grazing in alpine grassland[J]. Pratacultural Science, 2016, 10(7): 1403-1409. DOI: 10.11829/j.issn.1001-0629.2016-0210
Citation: Yu Liu, Zhen-heng Liu, Lei Deng, Gao-lin Wu. Species diversity and functional groups responses to different seasonal grazing in alpine grassland[J]. Pratacultural Science, 2016, 10(7): 1403-1409. DOI: 10.11829/j.issn.1001-0629.2016-0210

Species diversity and functional groups responses to different seasonal grazing in alpine grassland

  • To determine the effects of grazing on alpine grassland ecosystem, the response of the diversity and the functional group to different seasonal grazing which was divided warm-season grazing (June to October) and cold-season grazing (the other months) in alpine grassland was analyzed. The results showed that the diversity and evenness index in warm-season grassland was significantly greater than that in cold-season grassland, however, the richness index was reverse. showed a contrary trend. Above-ground biomass, the proportion of sedge and legume function group in warm-season grazing grassland was significantly greater than that in cold-season grazing grassland. Our results suggest that under a suitable grazing intensity, warm-season grazing would be beneficial to maintain the higher species diversity and evenness sustainability, and cold-season grazing would be beneficial to accumulate above-ground biomass in alpine grassland.
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