平凉黄土高原沟壑区
Pingliang Gully Region of Loess Plateau
半干旱黄土丘陵沟壑区
semiarid loess hilly-gully regions
semiarid Loss Hilly and Gully
半干旱黄土丘陵区
Semiarid loess hilly and gully region
Semiarid loess hilly region
semi-arid Loess Hill Region
semi-arid loess hill area
semiarid hilly area of the Loess Plateau
半干旱黄土区
semiarid loess area
semi-arid loess area
semi-arid loess hilly and gully region
半湿润黄土丘陵区
semi-humid rolling loess region