文
论文分享
演练场
杂货铺
论文推荐
字
编辑器下载
登录
注册
Uan Zhou-ping
发表
Study on the degrading process and vegetation succession of Medicago sativa grassland in North Loess Plateau,China
Li Yuyuan, Shao Ming’an, Uan Zhou-ping, 2006 .