| 喀斯特山区村级尺度下农田土壤养分的空间变异特性 |
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| 引用本文： | 彭志良,赵泽英,李中元,李莉婕.喀斯特山区村级尺度下农田土壤养分的空间变异特性[J].贵州农业科学,2008,36(5). |
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| 作者姓名： | 彭志良 赵泽英 李中元 李莉婕 |
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| 作者单位： | 1. 贵州省农业科技信息研究所,贵州,贵阳,550006
2. 贵州大学生命科学院,贵州,贵阳,550025 |
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| 基金项目： | 贵州省科技攻关项目，贵州省农业科学院基金 |
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| 摘 要： | 以贵州省平坝县马场镇栗木村土壤养分测试数据为例,利用经典统计及地统计学的原理和方法,结合GIS技术对土壤有机质、氨态氮、速效磷、速效钾的空间变异特性进行了分析和比较;根据旱地和水田中各土壤养分元素的不同空间变异特性分别选出了各自的最优插值方法,生成了空间变异分布图.
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| 关 键 词： | 地统计学 空间变异 有机质 氨态氮 速效磷 速效钾 喀斯特山区 土壤养分 |
Study on Spatial Variability of Soil Nutrients at the Village Scale in Karst Regions |
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| PENG Zhi-liang,ZHAO Ze-ying,LI Zhong-yuan,LI Li-jie.Study on Spatial Variability of Soil Nutrients at the Village Scale in Karst Regions[J].Guizhou Agricultural Sciences,2008,36(5). |
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| Authors: | PENG Zhi-liang ZHAO Ze-ying LI Zhong-yuan LI Li-jie |
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| Abstract: | The spatial variability of OM,NH 4-N,available phosphorus and available potassium in soils of Limu village,Pingba county,Guizhou was compared through analyzing the measured data of soil nutrients by using the elements and method of classic statistical,geo-statistics,and technology of geography information system.The distribution map of spatial variability was drawn by selecting the optimum interpolation methods according to different spatial variability of soil nutrient elements of dry land and paddy fields. |
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| Keywords: | geo-statistics spatial variability OM NH 4-N available phosphorus available potassium Karst regions soil nutrient |
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