Which soil types occur in the limestone regions of southern Guizhou?

In the limestone regions of southern Guizhou, the predominant soil type is red soil.1

While much of the province is characterized by yellow soil—which originates from sandstone, shale, and clay—the southern limestone areas are distinct due to these broad expanses of red soil. These regions are also noted for their karst topography, which features dramatic landscapes such as precipitous slopes, caverns, and subterranean streams resulting from the extensive limestone composition of the Yunnan-Guizhou Plateau.12