县域耕地土壤养分的时空变化及区域施肥研究--以肥东县为例
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国家科技支撑计划项目(2012BAD15B03)资助


Spatiotemporal Variations of Soil Nutrients and Regional Fertiliza­tion on County Land A Case Study of Feidong County
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    摘要:

    为提高粮食产量实现农业的可持续发展,本研究主要利用ArcGIS9.3对肥东县的土壤养分和pH作空间变异分析。通过分析可知在研究区域内除pH呈弱变异性外,其他养分都是中等变异,全氮、有效磷和速效钾为弱相关性,其他为中等相关性,并对数据进行插值分析绘制养分分布图;将2012年土壤养分数据与1982年第二次土壤调查数据相比较,从时间上分析其变异性,在时间对比分析可知土壤中主要养分速效钾变化不大,有效磷和有机质都明显增加。最后利用“3414”试验参数并结合当地耕作经验值,算出施肥配方,并绘制不同配方分区图。

    Abstract:

    To increase food production and achieve the sustainable development of agriculture, in this study, the soil nutrient and pH of Feidong County was analyzed by ArcGIS9.3. The study area pH was lower variability and other soil nutrient was intermediate variability. Total nitrogen, phosphorus and potassium had weak spatial autocorrelation and other nutrients was moderate spatial autocorrelation. The map of nutrient distribution was drawn by analysis of spatial interpolation. In the aspect of temporal variability from 1982 to 2012, potassium was changed little, phosphorus and organic matter were significantly increased. “3414” test parameters combining with local experience, fertilization formula were calculated and different formulations zoning maps were drawn.

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李小刚,马友华,王 强,郭粹锦.县域耕地土壤养分的时空变化及区域施肥研究--以肥东县为例[J].土壤,2014,46(6):976-983. LI Xiao-gang, MA You-hua, WANG Qiang, GUO Cui-jin. Spatiotemporal Variations of Soil Nutrients and Regional Fertiliza­tion on County Land A Case Study of Feidong County[J]. Soils,2014,46(6):976-983

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  • 在线发布日期: 2015-01-20
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