辽东山区森林土壤理化性质的研究

Studies on the Physicochemical Characteristics of Forest Soil in the Eastern Mountainous Region of Liaoning Province

通过对辽东山区棕壤、暗棕壤的对比分析,说明暗棕壤土壤容重轻。总孔酸度大、湿度高、土壤有机质含量高、树木生长条件优于棕壤。棕壤非毛细管孔隙度较大,但A层较薄,因此土壤水功能两种壤相近,二者呈酸性弱酸性反映,有机质和含N量较高,水解氮暗棕壤高、速效钾棕壤高。

The physicochemical characteristics of brown soil and dark brown soil in the eastern mountainous region of Liaoning Province were analysed. The result showed that the dark brown soil has lighter volume weight and bigger full porosity which provide a better condition growing tress than brown soil. Brown soil has bigger porosity of soil uncapillarity, but thinner A layer, hence both have sinilar capacity of water storage. These soils show weak acidity, higher content of N and organic matter. Dark brown soil has more content of hydrolysis N, but brown soil has quick action K.