| 内蒙古腰坝绿洲土壤盐分空间变异性规律 |
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| 引用本文： | 王巧焕,卢玉东.内蒙古腰坝绿洲土壤盐分空间变异性规律[J].北方园艺,2020(6):94-100. |
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| 作者姓名： | 王巧焕 卢玉东 |
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| 作者单位： | 东华理工大学水资源与环境工程学院;长安大学环境科学与工程学院;长安大学旱区地下水文与生态效应教育部重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目(41662015);阿拉善SEE生态协会基金资助项目(220029150182);江西省教育厅资助项目(GJJ160562)。 |
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| 摘 要： | 采用经典统计学、地统计学及Kriging最优内插法,对内蒙古腰坝绿洲耕层土(0~20cm)的土壤盐分空间变异性进行分析,以期为该区土壤盐渍化防治提供参考依据。结果表明:研究区土壤为碱性氯化物-硫酸盐型轻度盐渍化土,全盐量、SO4^2-具有中等空间自相关性,其余盐分指标具有强烈的空间自相关性,空间采样尺度以1km为佳;在空间分布格局上,土壤全盐量、Ca^2+、K^++Na^+、Mg^2+、SO4^2-、Cl^-呈西南高东北低的特征,而pH、HCO3-呈西南低东北高的特征。
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| 关 键 词： | 土壤盐分 空间变异性 地统计学 腰坝绿洲 |
Spatial Variability of Soil Salinity in the Yaoba Oasis of Inner Mongolia |
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| WANG Qiaohuan,LU Yudong.Spatial Variability of Soil Salinity in the Yaoba Oasis of Inner Mongolia[J].Northern Horticulture,2020(6):94-100. |
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| Authors: | WANG Qiaohuan LU Yudong |
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| Institution: | (School of Water Resources and Environmental Engineering,East China University of Technology,Nanchang,Jiangxi 330013;School of Environmental Science and Engineering,Chang′an University,Xi′an,Shaanxi 710054;Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region,Ministry of Education,Chang′an University,Xi′an,Shaanxi 710054) |
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| Abstract: | Using classical statistics,geostatistical and Kriging optimal interpolation,spatial variability of soil salinity in topsoil(0-20cm)in the Yaoba oasis of Inner Mongolia was analyzed,so as to provide scientific basis for soil salinization control in this area.The results showed that the soil of study area was alkaline chlorine-sulfate of mild soil salinization.The values of soil total salt and SO2-4 had a medium spatial correlation and other salt indexes had a strong spatial correlation.The better spatial sampling scale was 1km.On spatial distribution pattern,the values of soil total salt,Ca^2+,K^++Na+,Mg^2+,SO4^2- and Cl^-were relatively higher in southwest than northeast,on the contrary,the values of pH and HCO-3 were relatively higher in northeast than southwest. |
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| Keywords: | soil salinity spatial variability geostatistics Yaoba oasis |
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