arid area of northern Weihe River basin
arid continental river basin
arid highland of northern Wei River basin
Hyper arid area on the east end of south Xingjiang basin
inland river basin in arid region
northwest arid inland basin
arid and semi arid area
arid and semi arid areas
arid and semi arid region of Northwest China
arid and semi arid regions
arid and semi-arid area
干旱半干旱区
风沙区
干旱半干旱地区
干旱及半干旱地区
干旱、半干旱区
arid and semi-arid areas
Arid and semi-arid areas in Middle part of Asia
Arid and semi-arid region
干旱半干旱地区
干旱半干旱区
农业
干旱半干旱
干旱与半干旱区
干旱和半干旱区