rainfall collecting for tree planting
continuous cultivation for Chinese fir
a major tree planting drive
Changing cultivation into tree planting
dry planting for saving seedlings
National Tree-Planting Day
new models for planting grasses
planting for ecologic protection
planting tree and sowing grass
soiless base for planting
the national compulsory tree-planting activities
the national tree-planting festival
the tree-planting drive sponsored by……