不同栽培代次、林龄的桉树人工林土壤渗透性研究  

Soil Infiltration Characteristics of Eucalyptus Plantation with Different Rotations and Ages

作　　者：王纪杰[1] 俞元春[1] 陈容[1] 王维[1] 梁关锋[1] 周垂帆[1] 俞小鹏[1] 

机构地区：[1]南京林业大学森林资源与环境学院.南京210037

出　　处：《水土保持学报》2011年第2期78-82,103,共6页Journal of Soil and Water Conservation

基　　金：国家林业公益性行业科研专项(200804040);国家林业局“948”引进项目(2005-4-17);江苏省研究生培养创新工程项目(CX10B_248Z)

摘　　要：对福建省漳州市不同栽培代次、林龄的桉树人工林土壤渗透性能及其影响因子进行了研究。结果表明,不同栽培代次、林龄及同一林地不同土层的土壤渗透性均有较大差异。随着林龄的增加,一代桉树林土壤的渗透性呈提高的趋势,相同或相近林龄的桉树林,一代林的土壤渗透性大于二代林,同林龄不同土层土壤渗透性随土层加深而降低;0-60 cm土层内6 a生一代桉树林的土壤渗透性能最好,其初渗率、稳渗率、平均渗透速率及75 min内渗透总量的平均值分别是18.82,2.11,2.93 mm/min和164.08 ml/cm2。土壤水分入渗过程符合考氏（Kostiakov）模型,拟合效果较好,相关系数R2为0.823 9~0.982 1。土壤渗透性与土壤密度、最大持水量、非毛管孔隙度、总孔隙度、持水能力极显著相关,与土壤有机质、水解氮、有效磷呈极显著或显著相关,与土壤蔗糖酶、酸性磷酸酶以及过氧化氢酶极显著相关。不同林地土壤渗透性能排序为：0.3 a一代〈1 a一代〈2 a一代〈3 a一代〈4 a一代〈6 a一代;4 a二代〈4 a一代〈7 a二代〈6 a一代。Soil infiltration characteristics and influencing factors of eucalyptus plantation with different rotations and ages in Zhangzhou of Fujian province were studied.The results showed that soil infiltration characteristics of eucalyptus plantation varied with rotations,ages and soil layers.The soil infiltration characteristics of first rotation increased with the increasing of age.For same or similar forest ages,soil infiltration characteristics of the first rotation were higher than that of second rotation.Soil infiltration characteristics decreased with the increasing of soil depth.Among the research sites,the soil infiltration characteristics of the 6 a eucalyptus plantation was the best,the average of its initial infiltration rate,stable infiltration rate,average infiltration rate and the accumulative infiltration amount of the first 75 minutes were 18.82,2.11,2.93 mm/min and 164.08 ml/cm2,respectively.Kostiakov equation simulated the water infiltrating processes very well,the correlation coefficient（R2） was between 0.823 9 and 0.982 1.Soil infiltration characteristics was significantly correlated with soil bulk density,maximum moisture.capacity,non-capillary porosity,total porosity,water holding capacity,invertase,acid phosphatase and catalase.Soil organic matter,hydrolysable nitrogen,available phosphorus was also significantly correlated with the Soil infiltration characteristics.The scores of soil infiltration characteristics obtained by multiple attribute method and principal component analysis were in the following order： 0.3 a1 a2 a3 a4 a6 a,and 4 a（second rotation）4 a7 a（second rotation）6 a.

关 键 词：桉树人工林 土壤渗透性 土壤理化性质 

分 类 号：S715.3[农业科学—林学]