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[1]ZHOU Xing,PENG Yi,WU Shaojun,et al.Spatial Variability of Soil Nutrients in Tobacco-Planting Area of Jian’ge County[J].Research of Soil and Water Conservation,2015,22(01):85-89.

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Spatial Variability of Soil Nutrients in Tobacco-Planting Area of Jian’ge County

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 01 Page number: 85-89 Column: Public date: 2015-02-28

Title:: Spatial Variability of Soil Nutrients in Tobacco-Planting Area of Jian’ge County

Author(s):: ZHOU Xing¹, PENG Yi², WU Shaojun², GU Huizhan², LIU Lei¹; 1. College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China;
2. Guangyuan Tobacco Corporation of Sichuan Province, Guangyuan 628000, China

Keywords:: spatial variability; GIS; geostatistics; tobacco; soil nutrients

CLC:: S153.6;S572

DOI:: -

Abstract:: Combination of Geostatistics with GIS was applied to analyze spatial variability of tobacco-growing soil nutrients in Jian’ge County of Sichuan Province. Results showed that variability of soil pH was low, while that of total N, soil organic matter, alkaline N, available P and available K was medium. Soil pH, alkaline N and available P showed strong spatial autocorrelation mainly produced by structural factor; soil organic matter, total N and available P showed moderate spatial autocorrelation primarily caused by the co-effects of structural and random factors. The spatial auto-correlation distances of these nutrient indexes range from 12 m to 201 m. Based on these results of semi-variograms analysis, the spatial distribution maps of soil nutrients in tobacco-planting area were made by ordinary Kriging. The results of this study provided useful information on differential management of soil nutrients in tobacco-planting area of Jiange county.

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