Study on the Change of Vertical Structure and Productivity of Artificial Grassland Community Sowed in Different Year in Alpine Area
wang chang-ting~1; long rui-jun~(1; 3*); shi jian-jun~4; ding lu-ming~1(1.northwest plateau institute of biology; the chinese academy of sciences; xining 810008; china; 2.graduate school of the chinese academy of science; beijing 100039; china; 3.grassland science college of gansu agriculture university; lanzhou 730070; china; 4.qinghai academy of animal and veterinary sciences; xining 810003; china)
Advance in Transgenic Alfalfa
hu qing-quan; yu yong-xiong(college of animal science and technology; southwest agricultural university; chongqing 400716; china)
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Study on Ecological Restoration to Degenerated Leymus Chinensis Pasture
yan zhi-jian~(1; 2); yang chi~1; duan xin-qiao~3(1.department of ecology and environmental science; nei mongol university; hohhot 010021; china; 2.the grassland research institute of caas; hohhot 010010; china; 3.the grassland station of xilinguole league; xilinhaote 026000; china)