Title: Spatio-temporal variability analysis of soil nutrients based on GIS and Geostatistics
Abstract:Geostatistics combined with GIS were applied to analyze the spatial-temporal vailability of soil nutrients such as organic matter,total nitrogen,available phosphorus and available potassium in Xinzhen...Geostatistics combined with GIS were applied to analyze the spatial-temporal vailability of soil nutrients such as organic matter,total nitrogen,available phosphorus and available potassium in Xinzheng City.The results showed that organic matter,total nitrogen and available potassium in the coefficient of variation were from 29% to 45%,and the largest coefficient of variation of available phos-phorus was 75%.By Semi-variogram function of statistical analysis,organic matter and total nitrogen showed the medium level of space-related.The relevance of space about available phosphorus was the weakest which was effected mainly by random factors.Using the best interpolation of Kriging method,the study drawed distribution maps of the nutrients content and analyzed the spatial-temporal vailability of soil nutrients.Thus this study provided a basis for the effective use of soil and fertilizer to carry out the work of local conditions.Read More
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 5
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