大庆地区不同土地利用下土壤空间异质性研究
作者:
作者单位:

(1.东北林业大学森林植物生态学教育部重点实验室,黑龙江 哈尔滨 150040;2.黑龙江省科学院大庆分院,黑龙江 大庆 163319;3.大庆油田矿区事业服务部园林绿化公司,黑龙江 大庆 163711)

作者简介:

徐海军(1979-),男,宁夏人,副研究员,博士研究生,主要从事植物营养及土壤理化性质分析。E-mail: nxynxhj@163.com。

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基金项目:

基金项目:黑龙江省院所基本应用技术研究专项基金。


Spatial heterogeneity of soil properties under different land use patterns in Daqing area,China
Author:
Affiliation:

(1.Key Laboratory of Forest PlantEcology,Ministry of Education,Northeast Forestry University,Harbin150040;2.Daqing Branch of HeilongjiangAcademy ofSciences,Daqing163319;3.Landscaping Company of Logistic Administration of Daqing Oilfield LimitedCompany,Daqing163711)

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    摘要:

    为了解大庆地区土地利用对土壤理化性质的影响,通过对草甸、杨树林、农田三类典型样地进行野外采样、调查,利用经典统计学方法和地统计学方法分析三类样地土壤理化性质空间异质性。结果表明:三类样地土壤碱解氮、速效钾、有效磷、有机质、含水率变异系数( CV)波动区间为 12.16%~45.12%,呈中等变异性,pH值、表层土壤温度、容重变异系数波动在 1.31%~ 10.05%之间,呈弱变异性;球面模型对土壤理化指标空间异质性有较好的拟合效果,三类样地土壤理化性质空间异质性变化受随机性因子影响严重,空间异质性分布从杨树林、草甸到农田地依次呈现下降趋势。

    Abstract:

    In order to understand the effects of land use on soil physical and chemical properties in Daqing area,fieldsampling and investigation were carried out on three typical land use types,i.e.meadow,poplar woodland and farmland.Spatial heterogeneity of soil physical and chemical properties was analyzed by classical statistical method and geostatisticalmethod.The result showed that the variation coefficient(CV)of soil availablenitrogen,available potassium,available phosphorus,organic matter and water content ranged from 12.16% to45.12%,which showed moderatevariability,while the variation coefficientofpH,shallow soil -temperature and unit weight fluctuated from 1.31% to10.05%,which showed weakvariability.The sphericalmodel had a good fitting effect on the spatial heterogeneity of soil physical and chemicalindicators.The spatial heterogeneity of soilphysical and chemical properties in the three land use types was seriously affected by randomfactors,and the spatial heterogeneitydistribution showed a descending trend from poplarwoodland,meadow to farmland.

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徐海军,姚琴,孙宇峰,王晓飞,王文杰.大庆地区不同土地利用下土壤空间异质性研究[J].中国土壤与肥料,2020,(1):24-30.

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  • 收稿日期:2019-03-05
  • 最后修改日期:
  • 录用日期:2019-05-02
  • 在线发布日期: 2020-03-30
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