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围栏禁牧对羊草草原和大针茅草原蝗虫丰富度的影响
邱星辉, 李鸿昌
Effect of livestock exclusion on abundance of grasshoppers on Aneurolepidium chinense and Stipa grandis steppes
Qiu Xinghui, Li Hongchang
应用生态学报 . 1997, (4): 403 -406 .