| 微咸水灌溉条件下土壤和地下水含盐量空间变异分析 |
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| 引用本文： | 张展羽,郭相平,詹红丽,乔保雨.微咸水灌溉条件下土壤和地下水含盐量空间变异分析[J].灌溉排水学报,2001,20(3):6-9. |
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| 作者姓名： | 张展羽 郭相平 詹红丽 乔保雨 |
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| 作者单位： | 1. 河海大学农水系,
2. 江苏省射阳县水利局, |
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| 摘 要： | 对射阳县农田土壤含盐量、地下水含盐量进行取样检测 ,应用地质统计学方法对所取得的数据进行理论分析。结果表明 ,该地区在微咸水灌溉条件下 ,土壤含盐量服从正态分布 ,其空间结构符合 5次球状函数 ;地下水含盐量服从对数正态分布 ,其空间结构符合 3次球状函数。利用 GSLIB软件 ,绘制了该县土壤含盐量和地下水含盐量等值线图 ,为该地区水土管理 ,防止土壤盐渍化提供了决策依据
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| 关 键 词： | 土壤含盐量 地下水 地质统计学 空间变量 |
| 文章编号： | 1000-646X(2001)03-0006-04 |
| 修稿时间： | 2001年5月28日 |
Study on the Spatial Variability of Salt Content in Farmlands and Groundwater Under Saline Water Irrigation |
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| ZHANG Zhan yu ,GUO Xiang ping ,ZHAN Hong li ,QIAO Bao yu.Study on the Spatial Variability of Salt Content in Farmlands and Groundwater Under Saline Water Irrigation[J].Journal of Irrigation and Drainage,2001,20(3):6-9. |
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| Authors: | ZHANG Zhan yu GUO Xiang ping ZHAN Hong li QIAO Bao yu |
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| Institution: | ZHANG Zhan yu 1,GUO Xiang ping 1,ZHAN Hong li 1,QIAO Bao yu 2 |
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| Abstract: | Samples were taken from farmlands and groundwater in an experimental area in Sheyang County, Jiangsu Province, and tested in laboratory for salt content. The data was treated with a geo statistics method for spatial variability of salt content. Results show that salt content in farmlands meet to normal distribution and its spatial structure meet to a penta spherical function. Meanwhile, salt content in groundwater meet log normal distribution and its spatial structure meet to a cubic spherical function. The contour maps of salt content in farmlands and groundwater are also plotted with a GSLIB software, which is helpful for irrigation management and salinity prevention in Sheyang County. |
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| Keywords: | soil salt content groundwater geo statistics spatial variability |
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