GIS-technology for temporal-spatial analysis of mobile iron content in Southern Taiga soils

• Main Authors: Kosheleva N. E, Wagner V. B
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 1997
• Subjects: taiga
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.577.8005; http://vitus.wagner.pp.ru/geography/loi1997.pdf

A method of landscape-guided interpolation is presented to compile maps of isoconcentrations using both analytical data and information from thematic maps, such as landscape, soil and other ones. The interpolation formula includes the weight of a concentration in each sampling point depending not only on the distance but also on the qualitative similarity with the point of interpolation as well. A case study on the mapping of the mobile Fe contents in southern taiga soils demonstrates the possibilities of the elaborated method. A series of maps presenting Fe spatial pattern in topsoils for 6 years was compiled. The relative importance of agents of Fe mobilization was determined by comparing their impact coefficients for the considered time period. The joint analysis of maps and meteoro-logical information allowed to reveal the interannual dynamics character of mobile Fe. 1