地统计学用于近海有机物浓度估值的研究

通过对地统计学的研究和地理信息系统（GIS）软件的应用，提出了一种基于环境监测数据的估计近海有机物浓度分布的新方法、首先，在GIS环境中建立监测站位和功能区两个专题图层；然后，对监测站位的COD数据进行地统计学分析，确定研究海域有机物分布的空间结构特征；以此为基础，采用普通克里格法对有机物浓度进行空间插值，并将结果显示在GIS软件中，从而得出整个研究海域的有机物分布情况．通过实例分析表明，该方法避免了复杂的模型计算，原理简单、实用性强，有利于在近海环境管理中的试用．

Estimation of Organic Substance Concentration in Coastal Marine by Geostatistics

A new methodology for estimation of organic substance concentration in coastal marine was proposed based on studies on geostatistics and geographic information system(GIS)software.First,two special layers,i.e.monitoring points and functional zones,were constructed in GIS software.Second,the geostatistical analysis of COD values from monitoring points was made,which defined the spatial structure of COD in the studied area.Then the concentration of the organic substance in coastal marine was estimated by ordinary Krige method.Lastly,the estimation results were classified and illustrated in GIS software,and the COD concentration of organic substance in the whole area was gotten.The case analysis shows the method presented can avoid complex model calculations and it is simple,practicable and suitable for the application to environmental management of coastal marine.