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《Acta Agrestia Sinica》 2019-04
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Research on Plant Community Classification and Species Diversity of PeikuTso in Tibet

ZHAO Jin-yi;QU Xing-le;XUE Hui-ying;LUO Da-qing;Research Institute of Tibet Plateau Ecology,Tibet College of Agriculture and Animal Husbandry;National Key Station for Field Scientific Observation & Experiment;Tibet Key Laboratory of Forest Ecology in Plateau Area,Ministry of Education;Resources & Environment College,Tibet Agriculture & Animal Husbandry University;  
PeikuTso(lake)is located in the heart of the Everest Nature Reserve.Conducting a research on vegetation in the area can be as a background and reference for exploring and protecting this area.The vegetation in the PeikuTso area was selected as the research object,and the community sampling method and multivariate statistic methods including TWINSPAN and Species diversity were used to investigate the species' characteristics,cluster categories,and species diversity of plant communities and discuss the influencing factors.The results were as follows:there were few vegetation species in the study area,and the species composition was simple.The dominant family was Composita.The Northern temperate zone had the largest number of distribution;The vegetation in the study area could be divided into six cluster types:Achnatherum splendens(Trin.)Nevski+Iris loczyi Kanitz,Carex moorcroftii Falc.ex Boott+Kobresia macrantha Bocklr.+Glaux maritima L.,Carex angustifructus(Kük.)V.Krecz.+Lepidium capitatum Hook.f.et Thoms., Stipapurpurea Griseb.+Carex angustifructus(Kük.)V.Krecz.,Oryzopsis munroi Stapf ex Hook.f.+Chenopodiumfoetidum Schrad.,Chenopodium foetidum Schrad.+Carex angustifructus(Kük.)V.Krecz.The species and quantity of plant communities in the study area were significantly different.Species diversity decreased from the central part of the lake to both the southern and northern edges of the lake area,which was consistent with the degradation trend of the lake.
【Fund】: 国家重点研发计划课题(2016YFC0502006);; 西藏自治区科技重大专项项目(Z2016C01G01/03);; 西藏特色农牧资源研发协同创新中心-高原生态平台;; 西藏农牧学院研究生创新计划项目(STX2018-13)资助
【CateGory Index】: Q948.1
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