农业干旱研究
Agricultural drought research
湖南省娄底地区农业区划办公室
The Office of Agriculture Division of Loudi Area
hunan province
半干旱地区生态系统
Semi-arid land ecosystems
风沙半干旱地区
Sandy and semi-drought area
干旱半干旱地区
Arid and semi-arid region
arid and semi-arid areas
arid and semi-arid area
Arid and semi-arid zone
arid and semi-arid regions
arid and semi arid areas
arid and semi arid regions
arid and semiarid areas
arid and semiarid area
arid and semiarid regions
dry land area
arid and semiarid areas
middle-high elevation
干旱-半干旱地区
semi-arid and semi-humid zone
干旱地区造林
afforestation in arid area