Title: Spatial analysis of tobacco soil nutrients based on GIS and geostatistics
Abstract:In order to promote accurate management and proper fertilization of tobacco soil,spatial analysis on tobacco soil nutrients was conducted by GIS and geostatistics in the tobacco region of Changtu,Liao...In order to promote accurate management and proper fertilization of tobacco soil,spatial analysis on tobacco soil nutrients was conducted by GIS and geostatistics in the tobacco region of Changtu,Liaoning province.Results showed that,the semivariograms for soil organic matter,available nitrogen,phosphorus and potassium contents were all well fitted by spherical model.Soil available nitrogen had strong spatial correlation,indicating it was primarily controlled by structural factors like parent material,relief and soil type,while soil organic matter,available phosphorus,and potassium had moderate spatial correlation,suggesting they were co-affected by structural factors and random factors such as fertilization and field managements.The spatial distribution of tobacco soil nutrients in the tobacco region of Changtu was intuitively characterized by Kriging interpolation.Read More
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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