冀北山地森林土壤水分物理性质和入渗规律研究  

Study on water physical properties and infiltration law of forest soil in northern mountain of Hebei

作　　者：张爱军 岳艳杰 田龙[3] 杨新兵[4] 

机构地区：[1]河北省小五台山国家级自然保护区管理局,河北蔚县075700 [2]张家口林业调查规划院,河北张家口075000 [3]保定市农业局,河北保定071051 [4]河北农业大学林学院,河北保定071001

出　　处：《河北林果研究》2015年第2期108-112,共5页Hebei Journal of Forestry and Orchard Research

基　　金：河北省林业厅科技项目"冀北山区森林生态系统健康评价技术研究"(1403451);林业公益性行业科研专项子课题"冀北山区典型森林生态系统健康经营技术研究与示范"(200804022F)

摘　　要：为了进一步了解冀北山地森林土壤水分物理性质和入渗规律,以华北落叶松桦木混交林、山杨桦木混交林和油松蒙古栎混交林为研究对象,对其土壤水分物理性质和土壤入渗性能进行测定,结果表明:随土层深度的增加土壤容重逐渐增大,土壤持水量和总孔隙度逐渐减小;油松蒙古栎混交林的土壤平均容重最大(1.11g/cm3),华北落叶松桦木混交林最小(0.92g/cm3);土壤最大持水量由大到小依次为山杨桦木混交林(63.55%)、华北落叶松桦木混交林(53.10%)、油松蒙古栎混交林(39.50%),田间持水量由大到小依次为山杨桦木混交林(49.95%)、落叶松桦木混交林(41.01%)、油松蒙古栎混交林(31.39%);土壤总孔隙度由大到小依次为华北山杨桦木混交林(51.61%)、落叶松桦木混交林(46.14%)、油松蒙古栎混交林(43.18%);华北落叶松桦木混交林稳渗速率由大到小依次为坡下、坡中、坡上,山杨桦木混交林和油松蒙古林混交林稳渗速率由大到小依次为坡中、坡上、坡下。In order to study water physical properties and infiltration law of forest soil in northern mountain of Hebei,the soil water physical properties and soil infiltration of the mixed forest of Larix principis-rupprechtii and Betulaspp.Populus davidiana and Betula spp.,and Pinus tabulaeformis and Quercus mongolica as the research object,were measured for different forest types.the results showed that with the soil depth increase,soil bulk density gradually increased,while the soil moisture and total porosity gradually decreased.The average of soil bulk density showed the mixed forest of Pinus tabulaeformis and Quercus mongolica was maximum（1.11g/cm3）,and the mixed forest of Larix principis-rupprechtii and Betulaspp.was minimum（0.92g/cm3）.The descending order of maximum water holding capacity of soil was mixed forest of Populus davidiana and Betulaspp.（63.55%）,mixed forest of Larix principis-rupprechtii and Betulaspp.（53.10%）,mixed forest of Pinus tabulaeformis and Quercus mongolica（39.50%）.The descending order of field capacity was mixed forest of Populus davidiana and Betula spp.（49.95%）,mixed forest of Larix principis-rupprechtii and Betulaspp.（41.01%）,mixed forest of Pinus tabulaeformis and Quercus mongolica（31.39%）,The descending order of soil total porosity was mixed forest of Populus davidiana and Betula spp.（51.61%）,mixed forest of Larix principis-rupprechtii and Betulaspp.（46.14%）,mixed forest of Pinus tabulaeformis and Quercus mongolica（43.18%）.In descending order of the soil steady infiltration rate was lower slope,middle slope,upslope for mixed forest of Larix principis-rupprechtii and Betulaspp.In descending order of the soil steady infiltration rate was middle slope,upslope,lower slope for mixed forest of Populus davidiana and Betulaspp.and mixed forest of Pinus tabulaeformis and Quercus mongolica.

关 键 词：冀北山地 土壤容重 土壤持水量 土壤孔隙度 土壤入渗 

分 类 号：S791.254[农业科学—林木遗传育种]