grasslandn.牧场;草地
grassland vegetation growth草原植被长势
grassland utilization ratio草地利用率
grassland of tallgrass type高草型地
grassland in Kanasi Reserve喀纳斯草地
Grassland of Yunwu mountain云雾山草地
Grassland degradation degree草地退化程度
grassland vegetation changes草地变化
Grassland-livestock system草原畜牧业系统