ornamental tree and shrub

planting tree and sowing grass

a major tree planting drive

ancient tree and famous tree

AND tree

Changing cultivation into tree planting

Characteristic Fruit Tree and Populus euphratica S

conversition of slope cultivated land into planting grass and tree

distributions of tree-tree distances

double R-tree and double indexing DTDI

forest categories and tree species

fruit tree planting

informal tree planting

National Tree-Planting Day

planting tree species

rainfall collecting for tree planting

special tree and population

species of tree and grass

the amount of tree and grass coverage increased