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《Acta Pratacultural Science》 1996-04
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Seedling Development and Biomass Accumulation of Kobresia on Qinghai -Tibetan Plateau

Li Xilai Li Faji Huang Baoning Qiao Youming Sun Haisong Sun Baochen(Department of Grassland Science, Qinghai Animal Husbandry andVeterinary College. Xining 810003)  
The patterns in development and biomass accumulation of 4 species of Kobresia on the Qing-hai-Tibetan Plateau were investigated in this study. It was shown that there were two growth peaks in the development of vegetative branches for all the species investigated, while there was only one peak in the development of reproductive branches for a single species Kobresia capillifo-lia and no obvious peaks for other species. The maximum above-ground biomass was achieved respectively by these species in the period from early August to early September, The underground biomass of these species was 72. 60 to 614. 6 times as high as the above-ground one. The development of seedlings of the species was slow:there were very few tiller shoots formed among the 4-year-old seedlings. Also, the germination rate of the species was low, ranging only between 2%-13%.
【Fund】: 青海省科委资助项目(90—1—225)
【CateGory Index】: Q948
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