武夷山土壤性状及其垂直变化规律

选取武夷山脉主峰黄岗山土壤垂直带中7个代表性剖面,通过对土样处理及试验测定,分析武夷山不同海拔高度各土壤剖面的成土环境因子、理化性状、机械组成和质地等;比较分析各剖面土壤的平均有机质积累量、酸碱度、发育程度、淋溶富积作用等在不同海拔高度的垂直变化规律。结果表明,各剖面土壤的平均有机质积累量大体与海拔高度成正相关性;而剖面平均pH、发育程度和B层土壤黏化率等大体与海拔高度成负相关性;且各剖面表土层的土壤颜色亮度总体是随海拔降低而变亮,心土层随海拔降低而变暗。

Characteristic and Vertical Changing Regularities of Soils in Wuyi Mountain

An experiment was conducted to study the soil forming factors,physical and chemical properties,mechanical composition and soil texture of the soil profiles at different altitudinal zonations of Wuyi Mountain by measuring soil samples from seven soil typical profiles in the higheast peak Huanggang Mountain.The vertical changing regularities of average accumulated organic matter,soil pH,degree of soil development(maturity) and dissolve accumulation of the soils at different altitudinal zonations were analyzed.Result indicates that average accumulated organic matter increases,while pH and degree of soil development(maturity) and dilluvial clayification in B soil layer of the seven soil profiles decrease with altitude.The color of surface soil layer of the seven soil profiles becomes light with decreasing altitude,but the subsoil layer is opposite.