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MAPPING SOIL SALINITY USING COLLOCATED COKRIGING IN BAHARIYA OASIS,EGYPT
Soil Salinity Spatial Variability Cokriging Algorithm Colocated Cokriging
2015/9/28
The mapping of saline soils is the first task before any reclamation effort can be conducted. Soil salinity is determined, traditionally, by soil sampling and laboratory analysis. Recently, it became ...
Kriging,cokriging or stochastical simulations,and the choice between deterministic or sequential approaches
kriging cokriging Gaussian simulations porosity Benič anci field
2009/12/8
This new research presented here for the first time in the Croatian geomathematical community, aims to establish several criteria which will aid in the selection of deterministic or stochastic geostat...
应用地统计学的半方差函数和克立格法, 在仪征地区利用高程这一辅助变量把土壤pH 和成土母质联系起来, 分析了土壤pH 的
半方差和不同高程土壤pH 的交互半方差特征, 比较了土壤pH 的Kriging 和Cokriging 估值。研究表明, 预测值与实测值之间的相关系数
协同克立格法比普通克立格法提高了39 .00% , 使估值的结果进一步精确。
利用Cokriging提高估算土壤盐离子浓度分布的精度
——以黄河三角洲为例
2007/8/24
估算土壤中化学物质的含量与空间分布是了解多孔介质中水盐运移规律并进而因地制宜地提出盐渍土改良措施的关键。大面积的实地采样分析费时费力且耗资巨大。通过地统计分析，使用有限的采样数据可获得土壤溶质的准确变异。本文探讨和比较了Ordinary kriging (OK) 与Cokriging (COK) 这两种内插方法。结果显示一半的采样点数据的COK较之全部采样点数据的OK精度更...