| 冀北山地华北落叶松、桦木林土壤水分物理性质研究 |
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| 引用本文： | 李淑春.冀北山地华北落叶松、桦木林土壤水分物理性质研究[J].河北林果研究,2017,32(1). |
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| 作者姓名： | 李淑春 |
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| 作者单位： | 河北省木兰围场国有林场管理局,河北围场,068450 |
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| 基金项目： | 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”，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” |
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| 摘 要： | 华北落叶松和桦木是冀北山区最主要的造林树种。为探讨二者的纯林或混交林对土壤水分物理性质的影响,以冀北山地华北落叶松林、落叶松白桦混交林、桦木林、黑桦林为研究对象,对其土壤水分物理性质进行比较,结果表明:土层越深,土壤容重越大,由大到小依次为华北落叶松林(1.14g/cm~3)、黑桦林(1.03g/cm~3)、落叶松白桦混交林(1.01g/cm~3)、桦木林(0.98g/cm~3),土壤总孔隙度由大到小排序为落叶松白桦混交林(53.04%)、华北落叶松林(51.84%)、桦木林(51.40%)、黑桦林(51.14%);土壤最大持水量由大到小排序为落叶松白桦混交林(55.53%)、桦木林(52.81%)、黑桦林(51.33%)、华北落叶松林(48.22%);土壤稳渗速率由大到小排序为落叶松白桦混交林、桦木林、黑桦林、华北落叶松林。营造华北落叶松和桦木混交林有利于土壤涵养水源和保持水土。
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| 关 键 词： | 冀北山地 土壤水分物理性质 土壤入渗 混交林 华北落叶松 桦木 |
Study on physical properties of soil water of Larix principis-rupprechtii and Betula spp.forests in mountain of northern Hebei province |
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| LI Shuchun.Study on physical properties of soil water of Larix principis-rupprechtii and Betula spp.forests in mountain of northern Hebei province[J].Hebei Journal of Forestry and Orchard Research,2017,32(1). |
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| Authors: | LI Shuchun |
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| Abstract: | Larix principis-rupprechtii forest and Betula spp.forest are the main afforestation tree species in mountain of northern Hebei province.To explore the impact of constructing pure and mixed forest on physical characteristics of soil moisture,the Larixc principisrupprechtii forest,Larix principis-rupprechtii and Betula platyphylla mixed forest,birch forest,and black birch forest in mountain of northern Hebei province were taken as materials,and the physical properties of soil water were compared.The results showed that the deeper the soil,the greater the soil bulk density,and the order was:Larix principis-rupprechtii forest (1.14 g/cm3) ＞ Betula dahurica forest (1.03 g/cm3) ＞ Betula platyphylla + Larix principis-rupprechtii mixed forest (1.01 g/cm3) ＞ Betula spp.forest (0.98 g/ cm3).The total soil porosity order was as follows:Betula platyphylla + Lariax principis rupprechtii mixed forest (53.04 ％) ＞ Larix principis-rupprechtii forest (51.84 ％) ＞ Betula spp.forest(51.40％)＞Betula dahurica forest(51.14％).The soil maximum water-holding capacity order was:Betula platyphylla + Larix principis-rupprechtii mixed forest (55.53％) ＞ Betula spp.forest (52.81％) ＞ Betula dahurica forest (51.33％) ＞ Larix principis-rupprechtii forest (48.22％).The order of soil steady infiltration rate was as follows:Betula platyphylla + Larix principis-rupprechtii mixed forest ＞ Betula spp.forest ＞Betula dahurica forest ＞ Larix principis-rupprechtii forest.Therefore,creating a mixed forest of Larix principis-rupprechtii forest and Betula spp.forest in mountain of northern Hebei province is beneficial to soil and water conservation. |
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| Keywords: | mountain of northern Hebei province physical properties of soil moisture soil infiltration mixed forest Larix principis-rupprechtii birch |
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