【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更多还原

【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.更多还原