【作者】 阳永泉； 温远光； 梁宏温； 朱宏光； 何斌；

【机构】 广西大学林学院；

【摘要】 对广西国营高峰林场界牌分场相似立地条件下尾巨桉和厚荚相思人工林土壤的物理和化学性质进行了测定,旨在阐明尾巨桉和厚荚相思的生长对土壤肥力的影响。研究结果表明:⑴.与尾巨桉相比,厚荚相思人工林土壤更疏松,具更高的土壤通透、保水和供水性能,但差异不显著(P=0.31～0.97);⑵.除速效K外,尾巨桉人工林土壤有机质和养分元素含量均小于厚荚相思人工林,差异显著性检验结果表明:20～40cm土壤有机质差异极显著(P=0.01),而在0～20cm土层中,土壤有机质、PH值、全磷、全氮等差异均不显著(P=0.09～0.99);⑶.厚荚相思人工林对土壤的改良作用优于尾巨桉人工林。更多还原

【Abstract】 Through the determination of the Physical properties and chemical properties of the soil of Eucalyptus urophylla × E.grandis and Acacia grasscapa Plantations in the Guangxi state-owned Gaofeng Forestry with similar condition,seeks to expound the impact of the growth of E.grandis × E.urophylla and A.grasscapa to the soil fertility.The results showed that:(1)the soil of A.grasscapa plantation is more loose,with a higher soil permeability,holding and providing water properties,but that of both forests was not significant differences(P=0.31-0.97),(2)except the available K,the soil organic matter content and nutrient content of E.grandis × E.urophylla plantations is less than that of Acacia grasscapa plantation,test of the significance of difference indicated that soil organic matter had strong significant differenc(eP=0.01)in 20 – 40 cm soil layer,soil organic matter,pH value,total P,total N were not significant different(P=0.09-0.99) in 0 – 20 cm soil layer,(3)A.grasscape plantations is more Superior than E.grandis × E.urophylla plantations in the effection on improve of soil.更多还原