The Application of GIS Techniques in Soil Testing and Fertilizer Recommendations: Part III the Distribution of Soil Organic Matters in Hainan, China

Abstract:

There are more and more concerns of researchers on the spatial distribution of organic carbons. Accurate estimate of organic carbon stock of arable land soil is significant to cutting down release of carbons. The study, taking Hainan arable land as the study case, has analyzed the distribution and variation characteristics of organic matters content of arable land soils in this area by applying GIS spatial analysis. The results indicate that for nearly three decades, the contents of soil organic matters decreased significantly in Hainan, and the effective measures should be taken to increase the contents of soil organic matters, i.e. increase application ratios of organic fertilizers. GIS raster calculation can identify the areas, of which the soil organic matters changed most significantly during the two periods.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 3689-3692
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.3689
• Online since: December 2012
• Authors: Zhi Yuan Wei, Zhi Ping Qi
• Keywords: Fertilizer Recommendation, GIS, Hainan, Organic Matter, Soil Test

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