研究了时空变异函数和协方差函数的积和模型并将其推导成能够实现的形式,提出了时空权重系数的计算矩阵、基于该矩阵实现了积和模......

以黑龙江省近37a的月均气温数据为研究对象,介绍了一类积分式时空协方差(变异)函数模型进行时空Kriging插值。针对月均气温呈现出......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

本文通过对荣华二采区10...

Due to the lack of regulation and environmental education and awareness,Sepahanshahr located in vicinity of Isfahan City......

The association of organic carbon with secondary particles (aggregates) results in its storage and retention in soil. A ......

The primary network of groundwater level observation wells aims at realizing a regional groundwater management policy. I......