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《Acta Agriculturae Universitatis Jiangxiensis》 2007-02
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Investigation of Temporal-spatial Variability of Soil Nutrients in Fengqiu County

XIA Min1,ZHAO Xiao-min2,ZHANG Jia-bao3,ZHU An-ning3,LIU You-zhao1 (1.College of Land Management,NAU,Nanjing 210095,China;2.College of Land Resources and Environment,JAU,Nanchang 330045,China;3.Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China)  
The geostatistical analysis model and spatial analysis model of ArcGIS were applied to investigate the temporal-spatial variability of the organic matter,total nitrogen,available nitrogen,available phosphorus and available potassium in soil surface of Fengqiu County for over 20 years.The results showed that the content of soil organic matter,total nitrogen,available nitrogen,available phosphorus have gone up,but the content of available potassium has come down rapidly.These changes are related to the use of fertilizer and land.It is indicated that the distribution character and temporal-spatial variability of soil nutrients can be discovered effectively by applying geographic information system and geostatistics methods.
【Fund】: 江西省自然科学基金项目(0330065、0630050);; 江西省科技攻关项目([2004]211号)
【CateGory Index】: S158
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