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南亚热带典型人工林土壤饱和导水率特征及其影响因素研究

许振欣 邓羽松 林立文 刘德杨 蒋代华 黄智刚 魏国余

许振欣, 邓羽松, 林立文, 刘德杨, 蒋代华, 黄智刚, 魏国余. 南亚热带典型人工林土壤饱和导水率特征及其影响因素研究[J]. 北京林业大学学报, 2021, 43(4): 100-107. doi: 10.12171/j.1000-1522.20200124
引用本文: 许振欣, 邓羽松, 林立文, 刘德杨, 蒋代华, 黄智刚, 魏国余. 南亚热带典型人工林土壤饱和导水率特征及其影响因素研究[J]. 北京林业大学学报, 2021, 43(4): 100-107. doi: 10.12171/j.1000-1522.20200124
Xu Zhenxin, Deng Yusong, Lin Liwen, Liu Deyang, Jiang Daihua, Huang Zhigang, Wei Guoyu. Characteristics of soil saturated hydraulic conductivity and its influencing factors of typical plantations in South Subtropical Zone[J]. Journal of Beijing Forestry University, 2021, 43(4): 100-107. doi: 10.12171/j.1000-1522.20200124
Citation: Xu Zhenxin, Deng Yusong, Lin Liwen, Liu Deyang, Jiang Daihua, Huang Zhigang, Wei Guoyu. Characteristics of soil saturated hydraulic conductivity and its influencing factors of typical plantations in South Subtropical Zone[J]. Journal of Beijing Forestry University, 2021, 43(4): 100-107. doi: 10.12171/j.1000-1522.20200124

南亚热带典型人工林土壤饱和导水率特征及其影响因素研究

doi: 10.12171/j.1000-1522.20200124
基金项目: 中央引导地方科技发展专项(桂科ZY20198007),广西科技重大专项(AA17204078-4),国家重点研发计划项目(2017YFC0505402)
详细信息
    作者简介:

    许振欣。主要研究方向:森林生态学。Email:xzxgxuxs1998@126.com 地址:530004 广西壮族自治区南宁市广西大学农学院

    责任作者:

    邓羽松,博士,讲师。主要研究方向:土壤侵蚀与水土保持。Email:denny2018@gxu.edu.cn 地址:530004 广西壮族自治区南宁市广西大学林学院

  • 中图分类号: S714.2;S152.7+1

Characteristics of soil saturated hydraulic conductivity and its influencing factors of typical plantations in South Subtropical Zone

  • 摘要:   目的  分析南亚热带典型人工林土壤饱和导水率的变化特征及其影响因素,了解水分在土壤中的运动规律,为进一步研究人工林土壤水分运动规律提供基础科学理论支持。  方法  以广西国有高峰林场内的马尾松、杉木、尾巨桉、米老排、红锥等人工林土壤为研究对象,采用恒定水头法测定5种人工林地的土壤饱和导水率,利用相关性分析和灰色关联分析法等数学分析方法,探讨南亚热带人工林土壤饱和导水率的变化特征及其影响因素。  结果  (1)杉木和马尾松2种人工林土壤的平均饱和导水率相对较高,尾巨桉人工林土壤的平均饱和导水率最低。不同人工林土壤饱和导水率随土壤深度均具有先减小后增加的变化规律,且土壤表层(0 ~ 10 cm)的饱和导水率均显著高于土壤下层(10 ~ 50 cm)。(2)相关性分析结果表明,有机质含量、大于0.2 mm的水稳性团聚体含量、总孔隙度、非毛管孔隙度、毛管孔隙度、饱和含水量和黏粒含量均与饱和导水率呈正相关关系,土壤密度与饱和导水率呈显著的负相关关系。(3)灰色关联分析结果表明,有机质含量、大于0.2 mm的水稳性团聚体含量、土壤密度、总孔隙度、饱和含水量、非毛管孔隙度和毛管孔隙度是土壤饱和导水率的重要影响因素,砂粒含量、粉粒含量和黏粒含量是次重要因素。  结论  相比红锥、尾巨桉和米老排,杉木和马尾松可以显著提高土壤饱和导水率,延缓地表径流产生,减少土壤侵蚀。应注重科学的人工林经营措施,以便有效提高土壤的导水与贮水能力。

     

  • 图  1  不同林地土壤饱和导水率变化

    CL为杉木;PM为马尾松;ML为米老排;CM为红锥;EU为尾巨桉。CL, Cunninghamia lanceolata; PM, Pinus massoniana; ML, Mytilaria laosensis; CM, Castanopsis hystrix; EU, Eucalyptus urophylla × E. grandis.

    Figure  1.  Variations of soil saturated hydraulic conductivity in different stands

    表  1  研究区基本情况

    Table  1.   Basic information of the research area

    林地类型
    Stand type
    经纬度
    Longitude and latitude
    海拔
    Altitude/m
    坡度
    Slope/(°)
    林龄/a
    Stand age/year
    郁闭度
    Canopy density
    平均树高
    Mean tree height/m
    平均胸径
    Mean DBH/cm
    马尾松
    Pinus massoniana
    108°22′37″E、22°58′37″N 217 18 ~ 22 25 0.6 10.7 23.5
    杉木
    Cunninghamia lanceolata
    108°22′40″E、22°58′01″N 180 22 ~ 28 15 0.7 12.3 20.6
    尾巨桉
    Eucalyptus urophylla ×
    E. grandis
    108°22′01″E、22°59′20″N 358 20 ~ 25 8 0.5 18.2 13.4
    米老排
    Mytilaria laosensis
    108°22′04″E、22°58′08″N 234 22 ~ 26 12 0.8 13.5 18.1
    红锥
    Castanopsis hystrix
    108°22′37″E、22°58′08″N 190 22 ~ 25 10 0.6 15.6 16.5
    下载: 导出CSV

    表  2  土壤基本性质和土壤饱和导水率特征统计

    Table  2.   Statistics of soil saturated hydraulic conductivity and soil basic properties

    土壤基本性质
    Basic soil property
    极小值
    Min.
    极大值
    Max.
    均值
    Mean
    中位数
    Median
    标准差
    Standard deviation
    变异系数
    CV/%
    偏度
    Skewness
    X1/% 18.32 43.06 30.9 30.70 6.84 22.1 −0.203
    X2/% 24.66 40.74 32.23 31.56 4.41 13.7 0.187
    X3/% 32.16 44.02 36.87 36.32 3.51 9.5 0.709
    X4/(g∙cm−3) 0.96 1.53 1.32 1.38 0.17 12.6 −0.713
    X5/% 42.14 63.7 50.22 47.97 6.29 12.5 0.705
    X6/% 25.9 37.66 31.82 30.91 3.35 10.5 0.179
    X7/% 10.66 26.83 18.59 18.28 4.41 23.7 0.172
    X8/(g∙kg−1) 6.28 49.08 20.11 19.31 12.49 62.1 0.779
    X9/% 30.58 67.17 43.28 41.97 10.74 24.8 0.915
    X10/% 55.08 90.6 74.29 72.50 9.2 12.4 −0.136
    X11/(mm∙min−1) 0.28 1.18 0.55 0.48 0.25 45.8 1.357
    注:X1为砂粒含量;X2为粉粒含量;X3为黏粒含量;X4为土壤密度;X5为总孔隙度;X6为毛管孔隙度;X7为非毛管孔隙度;X8为有机质含量;X9饱和含水量;X10为大于0.2 mm的水稳性团聚体含量;X11为土壤饱和导水率。下同。
    Notes:X1 means content of sand; X2 means content of silt; X3 means content of clay; X4 means soil density; X5 means total porosity; X6 means capillary porosity; X7 means non-capillary porosity; X8 means content of organic matter; X9 means saturated water content; X10 means water stable aggregate content greater than 0.2 mm; X11 means soil saturated hydraulic conductivity. The same below.
    下载: 导出CSV

    表  3  土壤基本性质与饱和导水率的相关性分析

    Table  3.   Correlation analysis of soil basic properties and saturated hydraulic conductivity

    项目 ItemX1X2X3X4X5X6X7X8X9X10
    饱和导水率
    Saturated hydraulic
    conductivity
    Pearson 相关性
    Pearson correlation
    −0.12−0.040.29−0.661**0.661**0.418**0.600**0.846**0.428*0.673**
    显著性
    Significance level
    0.41 0.85 0.06 0.00 0.00 0.01 0.00 0.00 0.04 0.00
    注:*表示P < 0.05 显著相关;**表示P < 0.01极显著相关。Notes: * indicates a significant correlation at P < 0.05 level; ** indicates a significant correlation at P < 0.01 level.
    下载: 导出CSV

    表  4  土壤基本性质与饱和导水率的关联系数(ζi

    Table  4.   Correlation coefficients of soil basic properties and soil saturated hydraulic conductivity (ζi)

    X1X2X3X4X5X6X7X8X9X10
    0.348 0 0.388 2 0.333 8 0.463 0 0.463 0 0.353 4 0.542 6 0.703 3 0.403 2 0.525 1
    0.922 8 0.907 8 0.972 3 0.860 7 0.860 7 0.776 1 0.924 9 0.609 6 0.962 4 0.663 7
    0.816 2 0.575 7 0.738 4 0.926 1 0.926 1 0.918 5 0.855 4 0.631 6 0.802 9 0.935 2
    1.000 0 0.429 3 0.765 4 0.883 8 0.883 8 0.987 4 0.977 0 0.922 3 0.896 4 0.963 4
    0.648 8 0.528 4 0.733 0 0.601 5 0.601 5 0.503 4 0.861 7 0.661 4 0.785 3 0.454 2
    0.662 4 0.407 9 0.946 5 0.718 3 0.718 3 0.880 2 0.520 9 0.745 1 0.425 7 0.894 8
    0.548 0 0.581 0 0.509 1 0.636 9 0.636 9 0.589 2 0.823 8 0.783 0 0.627 0 0.846 3
    0.536 7 0.701 1 0.704 9 0.536 7 0.536 7 0.946 4 0.440 8 0.778 0 0.870 7 0.743 1
    0.797 5 0.598 4 0.646 8 0.985 6 0.985 6 0.758 8 0.820 9 0.787 7 0.646 6 0.557 6
    0.688 9 0.651 7 0.625 5 0.973 4 0.973 4 0.768 6 0.722 7 0.863 6 0.792 4 0.835 6
    0.384 7 0.653 2 0.360 2 0.568 8 0.568 8 0.439 5 0.691 9 0.625 6 0.933 3 0.677 8
    0.837 7 0.489 9 0.756 2 0.914 4 0.914 4 0.776 1 0.873 3 0.695 3 0.438 7 0.722 3
    0.918 2 0.456 2 0.925 8 0.751 1 0.751 1 0.758 0 0.462 1 0.742 1 0.608 5 0.737 7
    0.560 8 0.394 1 0.671 6 0.754 4 0.754 4 0.635 2 0.556 4 0.802 8 0.747 1 0.793 5
    0.542 6 0.426 4 0.722 9 0.622 4 0.622 4 0.811 5 0.871 6 0.716 2 0.709 2 0.801 1
    0.451 7 0.483 3 0.603 6 0.881 8 0.881 8 0.725 0 0.718 1 0.856 9 0.905 2 0.600 0
    0.466 0 0.573 6 0.429 3 0.413 3 0.413 3 0.501 3 0.447 3 0.872 2 0.450 9 0.700 8
    0.412 8 0.871 0 0.412 7 0.568 8 0.568 8 0.396 0 0.889 2 0.735 8 0.358 1 0.963 7
    0.761 3 0.784 8 0.942 2 0.970 0 0.970 0 0.551 8 0.642 0 0.844 3 0.748 9 0.993 9
    0.872 3 0.664 6 0.976 1 0.832 8 0.832 8 0.643 9 0.594 6 0.701 9 0.920 2 0.963 5
    0.583 7 0.615 8 0.685 6 0.797 6 0.797 6 0.845 2 0.823 4 0.905 3 0.858 3 0.829 9
    0.427 9 0.457 8 0.531 5 0.685 6 0.685 6 0.590 3 0.883 0 0.747 7 0.920 3 0.519 0
    0.477 7 0.577 5 0.761 6 0.774 5 0.774 5 0.898 7 0.715 5 0.890 5 0.722 5 0.618 0
    0.561 8 0.890 8 0.912 1 0.820 3 0.820 3 0.820 7 0.764 7 0.916 6 0.838 2 0.798 9
    0.770 2 0.704 9 0.672 8 0.959 6 0.959 6 0.694 3 0.764 7 0.647 5 0.896 9 0.496 4
    下载: 导出CSV

    表  5  土壤基本性质与饱和导水率的关联度(ri

    Table  5.   Degree of association of both soil basic properties and soil saturated hydraulic conductivity (ri)

    X1X2X3X4X5X6X7X8X9X10
    0.640 00.592 50.693 60.756 10.756 10.702 80.727 50.767 50.730 80.745 4
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-05-07
  • 修回日期:  2020-06-20
  • 网络出版日期:  2021-03-20
  • 刊出日期:  2021-04-30

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