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《Acta Agrestia Sinica》 2001-03
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The Seasonal Dynamics of Biomass of the Medicago sativa Communities on the Adandoned Arable Land of Chaidamu Basin

PENG Hong-chun, NIU Dong-ling, LI Xiao-ming, YANG Hui-qing, QI Ying-lin, FEI Ying-xia (Northwest Plateau Institute of Biology,the Chinese Academy of Sciences,Xining 810001, China; Haixi Grassland Station of Qinghai Province,Delingha 817000, China)  
By analyzing the above-ground biomass and the growth rate of that of the M.sativa communities,and the plant height of M.sativa, and the coverage of the communities in the Chaidamu Basin,the author concludes that the above ground biomass and growth rate of M.sativa communities in the third crop year are more than those of M.sativa communities in the second crop year;there isn't s ignificant difference among the plant height of M.sativa communities(P>0.05);the coverage of the mixted sowing communities is more than that of the monosowing communities;the proportion of the available grass of the mixted sowing communities keep stable,that of the monosowing communities unstable.
【Fund】: 国家“九五”攻关计划项目(97-924-02-03)资助
【CateGory Index】: S541.9
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