喀斯特石漠化
Karst rock-desertification
Karst rock desertification
Karst rocky desertification
Information extraction
喀斯特石漠化过程
process of karstrock desertification
磷酸盐化化石组合
phosphatized fossil assemblage
磷酸盐化球状化石
phosphatized globular fossils
潜在石漠化
potential rocky desertification
黔中石漠化地区
central rocky desertified area of Guizhou Province
强度石漠化
serious rock desertification
人为石漠化
Artificial formed rock desert