Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (36): 125-135.doi: 10.11924/j.issn.1000-6850.casb16050181

Special Issue: 耕地保护

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Farmland Nutrients Spatial Distribution in Donge County

Li Fang1, Wei Jianlin2, Xu Hongming1, Song Dongtao1, Cui Rongzong2   

  1. (1Shandong Province Donge Agriculture Bureau, Donge Shandong 252201; 2Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Jinan 250100)
  • Received:2016-05-31 Revised:2016-12-12 Accepted:2016-07-22 Online:2016-12-26 Published:2016-12-26

Abstract: To explore the spatial variability characteristics of soil nutrients in Donge County, the authors descriptively and statistically analyzed 1799 reasonable soil samples by SPSS 23. The ordinary Kriging method in ArcGIS 10.2 was used to form the soil nutrients interpolation map. The results showed that the average contents of soil organic matter, available nitrogen, available phosphorus and available potassium was 15.60 g/kg, 91.4 mg/kg, 24.12 mg/kg and 190 mg/kg, respectively. The contents of each soil nutrient were higher in the central region, then were the northeast and the lowest were in the southwest. Soil texture was the main factor of nutrient spatial distribution, the sedimentary sorting effect in soil-forming process made the range shortest perpendicular to the bank of Yellow River.