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辽宁省东北部多山,气候冷凉多雨,南自海拔900米和北起500米以上的山地,原生植被是温带针阔叶混交林。发育在残积坡积母质上的土壤,腐殖质量大于10%,粘粒和氧化铁移动很弱,土体无铁锰胶膜和铁子,代换性盐基和盐基饱和度从上层到下层逐渐减少,完全符合暗棕壤的形成规律。发育在黄土状母质上的土壤,腐殖质层下的白色土层,代换性盐基总量最低,氧化铁量较高,表明土壤在氧化还原和侧渗外移作用下,进行着白浆化过程。所以,我们认为该地区既有暗棕壤也有白浆土。有人把它们看成是棕色森林土是不合适的。
Northeastern Liaoning Province, mountainous, cold and rainy climate, south elevation 900 meters and 500 meters above the north of the mountain, the native vegetation is temperate coniferous and broad-leaved mixed forest. Developed in the residual slope of the parent material on the quality of the soil, the humus quality is greater than 10%, clay and iron oxide move very weak soil without ferromanganese film and ferrite, substitutional base and base saturation from the upper to the lower Gradually reduced, in full compliance with the formation of dark brown soil. Soil developed on loamy parent material, white soil under the humus layer, the lowest total amount of substitutional base, and the higher iron oxide content, indicating that the soil is whitened under redox and lateral infiltration process. Therefore, we think there are both dark brown soil and white soil in the area. Some people think of them as brown forest soil is not appropriate.