According to the division of the climate zone and geomorphy together with their features, LP are cut into eleven CTG regions such as LP Gullied Aera (LPGA) in Jinshaan in Warm Temperate Zone (WTZ) and Subhumid Climate Zone, and so on.

• 在气候带带、地貌分区及其区位特征研究基础上，把黄土高原分成暖温带半湿润晋陕黄土高原沟壑区等11类草类适生区。