说明:
On a medium site in northern California, a mostly shrub community was treated by two manual release techniques and by two herbicides, to study its dev ...展开
elopment in both a natural (control) and treated condition.Greenleaf manzanita; Snowbush; Ponderosa pine; Seedlings; 2-4-D; Velpar; Northern California 48D Natural Resources & Earth Sciences: Forestry; 48B Natural Resources & Earth Sciences: Natural Resource Management; 57P Medicine & Biology: Pest Control 收起