arid and semi arid area
arid and semi arid areas
arid and semi arid region of Northwest China
arid and semi arid regions
water yield zones and potential pay zones
absorption arid desorption
afforestation in arid area
Agriculture arid forestry
Alpine-cold arid region
aquatic environment of arid region
Arid
干
干旱
旱区
半
旱
干燥
旱地
旱作
沙漠
西北
沙
辽西
干旱的
干燥气候
乾燥
干燥的
干旱地区
干旱区
半干旱
干燥[的]
干燥地
不毛的