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贵州贞丰—关岭花江喀斯特石漠化地区土壤厚度的空间分布特征

邓大鹏 刘琦 卢耀如 闫钇全

邓大鹏,刘琦,卢耀如,等. 贵州贞丰—关岭花江喀斯特石漠化地区土壤厚度的空间分布特征[J]. 水文地质工程地质,2023,50(1): 197-206 doi:  10.16030/j.cnki.issn.1000-3665.202111005
引用本文: 邓大鹏,刘琦,卢耀如,等. 贵州贞丰—关岭花江喀斯特石漠化地区土壤厚度的空间分布特征[J]. 水文地质工程地质,2023,50(1): 197-206 doi:  10.16030/j.cnki.issn.1000-3665.202111005
DENG Dapeng, LIU Qi, LU Yaoru, et al. Spatial distribution characteristics of soil thickness in the Zhenfeng-GuanlingHuajiang karst rocky desertification area in Guizhou Province[J]. Hydrogeology & Engineering Geology, 2023, 50(1): 197-206 doi:  10.16030/j.cnki.issn.1000-3665.202111005
Citation: DENG Dapeng, LIU Qi, LU Yaoru, et al. Spatial distribution characteristics of soil thickness in the Zhenfeng-GuanlingHuajiang karst rocky desertification area in Guizhou Province[J]. Hydrogeology & Engineering Geology, 2023, 50(1): 197-206 doi:  10.16030/j.cnki.issn.1000-3665.202111005

贵州贞丰—关岭花江喀斯特石漠化地区土壤厚度的空间分布特征

doi: 10.16030/j.cnki.issn.1000-3665.202111005
基金项目: 国家自然科学基金项目(41772292);国家重点研发计划(2016YFC0502603)
详细信息
    作者简介:

    邓大鹏(1992-),男,博士研究生,主要从事岩溶石漠化方面的研究。 E-mail:1910362@tongji.edu.cn

    通讯作者:

    刘琦(1980-),女,博士,副研究员,主要从事水文地质工程地质方面的教学和研究。 E-mail:liuqi472@163.com

  • 中图分类号: X171.1

Spatial distribution characteristics of soil thickness in the Zhenfeng-GuanlingHuajiang karst rocky desertification area in Guizhou Province

  • 摘要: 土壤厚度与石漠化发展程度有着密切的关系,土壤也是石漠化地区生态恢复以及农业生产的基础。为了研究典型高原峡谷中-强度石漠化地区的土壤厚度空间分布规律,在土壤厚度野外调查的基础上,利用地统计学方法分析了贵州典型石漠化地区——贞丰—关岭花江小流域土壤厚度空间分布特征及主要影响因素。结果表明:(1)研究区土壤平均厚度仅为26 cm,土壤平均厚度表现为坡耕地>荒地>林地;(2)土壤厚度空间变异性以强度为主,荒地的土壤厚度空间分布连续程度优于林地和坡耕地,林地的土壤厚度空间分布有明显突变性,坡耕地的土壤厚度具有点状分布特征,有耕作物附近土壤厚度较大;(3)土壤厚度与海拔、基岩裸露率、坡度之间均有明显负相关关系;(4)自然和人为因素综合影响下的土壤强侵蚀是研究区土壤厚度分布极为不均的主要原因,对该区域石漠化的治理可以采用工程措施与生物措施相结合的方法。研究结果对研究区石漠化因地制宜地防治及其他地区水土流失防治、生态恢复、农业合理生产具有一定的参考价值。
  • 图  1  平面地质图及研究区土壤厚度调查单元分布

    Figure  1.  Geological map and distribution of soil thickness survey units in the study area

    图  2  花江喀斯特峡谷地质剖面图

    Figure  2.  Geological profile of the Huajiang karst gorge

    图  3  调查单元样点布设示意图

    Figure  3.  Sampling points layout of investigation unit

    图  4  土壤厚度分布比例

    Figure  4.  Proportion of soil thickness distribution

    图  5  不同土地利用类型土壤厚度分布

    Figure  5.  Soil thickness distribution of different land uses

    图  6  荒地土壤厚度分布等值线图

    Figure  6.  Contour maps of soil thickness distribution in wasteland

    图  7  林地土壤厚度分布等值线图

    Figure  7.  Contour maps of soil thickness distribution in forest land

    图  8  坡耕地土壤厚度分布等值线图

    Figure  8.  Contour maps of soil thickness distribution in sloping farmland

    图  9  海拔与土壤厚度关系

    Figure  9.  Relationship between soil thickness and altitude

    图  10  基岩裸露率与土壤厚度关系

    Figure  10.  Relationship between soil thickness and bedrock exposure rate

    图  11  坡度与土壤厚度关系图

    Figure  11.  Relationship between soil thickness and slope

    表  1  各采样单元土壤厚度

    Table  1.   Soil thickness information of the investigation units

    调查单元编号土地利用类型主要植被海拔
    /m
    基岩裸露率
    /%
    斜坡倾向
    /(°)
    坡度
    /(°)
    土壤厚度描述性统计
    最大值/cm最小值/cm平均值/cm标准差变异系数/%
    Plot 1坡耕地仙人掌、花椒74484.165154010289.5734
    Plot 2坡耕地花椒82060.01129100154424.7457
    Plot 3荒地乔木、杂草70260.0301650103616.9948
    Plot 4坡耕地仙人掌、花椒66579.20202510186.8737
    Plot 5坡耕地花椒、玉米67685.63341858103619.8055
    Plot 6坡耕地花椒61873.0330154003314.9758
    Plot 7林地柚木54263.8255154551814.0477
    Plot 8荒地杂草67780.918163520275.1019
    Plot 9坡耕地玉米87172.8101750103314.6244
    Plot 10坡耕地金银花、花椒77475.1301250183711.6832
    Plot 11坡耕地花椒、仙人掌68963.460165020339.9530
    Plot 12坡耕地火龙果53718.52251955153713.6137
    Plot 13荒地61226.8140153701913.4572
    Plot 14林地柚木55583.72101162153215.6249
    Plot 15坡耕地大豆、花椒、玉米76761.1151680255916.4128
    Plot 16坡耕地花椒71771.930184015287.0725
    Plot 17坡耕地花椒81364.2258148561.4124
    Plot 18坡耕地花生、花椒54766.651455203611.5832
    Plot 19坡耕地花椒73766.234134552515.6763
    Plot 20坡耕地花椒68565.919614305188.0645
    Plot 21坡耕地玉米、花椒74967.6230163252110.8751
    Plot 22荒地杂草82672.022317308237.8034
    Plot 23坡耕地荒草、花椒77574.21211740102310.8046
    Plot 24林地灌木、荒草11890.040201515150.000
    Plot 25坡耕地火龙果、杂草59612.3130157301818.2262
    Plot 26荒地杂草6540.0140154002510.2041
    Plot 27荒地杂草59655.5170224201510.5169
    Plot 28坡耕地花椒、玉米69233.360204901815.1082
    Plot 29坡耕地花椒86640.275283501111.48100
    Plot 30坡耕地核桃、石榴72619.5170165002116.2177
    Plot 31坡耕地仙人掌、红薯93260.2130195301714.8785
    下载: 导出CSV

    表  2  典型样地土壤厚度半方差分析参数表

    Table  2.   Parameters of semi-variance analysis of soil thickness in typical plots

    编号土地利用类型理论模型块金值基台值块金值/基台值变程R2RSS
    Plot 8荒地高斯模型177.0664.90.2731.400.51921732
    Plot 13荒地高斯模型40.0284.60.1412.641.0001.65
    Plot 27荒地高斯模型71.6354.10.2043.000.6291451
    Plot 7林地球状模型166.0742.90.2229.250.60726464
    Plot 14林地球状模型11.2284.60.047.200.715313
    Plot 24林地线性模型71.071.01.0014.140.929632
    Plot 9坡耕地球状模型25.0459.30.057.930.5093922
    Plot 12坡耕地线性模型199.8199.81.0011.770.85518301
    Plot 29坡耕地指数模型98.6342.90.29183.000.528240
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-11-02
  • 修回日期:  2021-12-15
  • 网络出版日期:  2022-12-09
  • 刊出日期:  2023-01-13

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