搜索结果: 1-3 共查到“植物保护学 U.S. grasslands”相关记录3条 . 查询时间(0.062 秒)
Downy Brome (Bromus tectorum) Control with Imazapic on Montana Grasslands
Cheatgrass Plateau rangeland
2015/12/26
Downy brome is a problematic invasive annual grass throughout western rangeland and has been increasing its abundance, spread, and impacts across Montana during the past several years. In an effort to...
Grasshopper Species-Area Relationship on Ungrazed and Overgrazed Grasslands
Grashoppers species-area relationship grazing grassland
2009/9/23
The species richness and abundance of rangeland grasshoppers were investigated at 6 sites of un—
grazed and overgraz ed pastures in Inner Mongolia during the autumn of 1994．The ungrazed sites sup—
p...
Inner Mongolian Grasslands：Situation and Concern
Inner Mongolia grassland degradation grazing pressure pasture grass prataculture
2009/3/11
Inner Mongolian Grasslands : Situation and Concern.