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 。
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.
出处
《灌溉排水》
CSCD
北大核心
2001年第3期6-9,共4页
Irrigation and Drainage
关键词
土壤
含盐量
地下水
土质统计学
微咸水灌溉
soil salt content
groundwater
geo statistics, spatial variability.
