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Intensive exploitation of natural environment resources, including natural aggregates - among them sand used for industrial purposes e.g. building industry, production of glass or backfilling contributes to significant physiocenotic changes. Concerning the problem, the area of £ód¼ voivodeship merits attention, especially Kobiele Wielkie commune (Dudki village) where progressive degradation of a parabolic dune occurs. It is caused by excessive extraction of Pleistocene fluvioglacial sand for building purposes. Overexploitation of natural resources has already caused and it is still causing decrease of the primary range and form of the discussed geomorphological form. Therefore, the authors of the paper decided to aim at reconstruction of the physiognomy (of the period prior to extraction) of the dune which had been formed in Dudki village. Geostatistical methods, including ordinary kriging, have been app lied for the purpose. The lack of archival cartographic materials of the investigated area made the authors go on numerous field trips which goal was to analyse and estimate the current state of the aeolian form and to determine its shape and range by mean s of a GPS receiver. A hypothetical three - dimensional model of the investigated dune made by application of an ordinary kriging method has not brought satisfying effects. Too many overestimated and underestimated values of altitude values caused significant generalisations resulting in smoothing of the whole model. Application of the correction of the smoothing effect proposed by J. K. Yamamoto in 2000 enabled considerable reduction of the "falsification effect". Therefore, the reconstructed shape and range of the dune is considerably different from the one obtained at the initial stage of the investigation by means of the digital model. The obtained results of the correction of the smoothing effect giving in result perfectly matching variograms prove properly performed geostatistical analysis. Hence, despite the lack of cartographic materials showing the state of the dune prior to the extraction (which could have been compared with the obtained results of desktop studies ) it has been assumed that the reconstructed model of the dune matches its previous physiognomy and therefore it is the most suitable
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