Matter leaching and chemical weathering are weak. The main mineral element moving is less obviously. The soils belong to 2 soil class,2 subclass,3 soil great group and subgroup.

• 供试土壤共分属2个土纲,2个亚纲,3个土类和3个亚类,其中YW-2、4属于钙积暗厚干润均腐土,YW-3、5属于普通简育干润雏形土,YW-6属于钙积暗沃干润雏形土。