山地砂石土是指石质山坡地上的土壤,在辽宁,即指岩石风化物上的棕壤或褐土。这类土壤约占全省耕地面积的十分之一。由于这类土壤位于坡地,土层中夹有大量砂砾或石块,不仅跑水跑肥,还漏水漏肥,因此土层较薄,肥力低,产量不 Mountain gravel soil refers to the soil on the rocky hillside, in Liaoning, refers to the rock weathered brown soil or cinnamon. Such soil accounts for about one-tenth of the province’s arable land. Because of this type of soil is located in the slope, the soil is sandwiched between a large number of gravel or stones, not only ran running fertilizer, but also leaking leakage, so the soil is thin, low fertility, yield is not