| 土壤速效养分空间变异研究 |
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| 引用本文： | 许咏梅,冯耀祖,张小玲.土壤速效养分空间变异研究[J].新疆农业科学,2003,40(2):103-106. |
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| 作者姓名： | 许咏梅 冯耀祖 张小玲 |
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| 作者单位： | 新疆农科院土壤肥料研究所,新疆乌鲁木齐,830000 |
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| 基金项目： | 新疆维吾尔自治区科技厅 |
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| 摘 要： | 结合传统统计与地质统计学方法对新疆洛浦县多鲁乡哈拉浦村小麦地耕层土壤速效养分进行空间变间变异研究,其土壤速效养分变异均属中等变异,幅度在18;～33;.应用地质统计学分析其空间变异性,土壤有机质、全氮、碱解氮具有强烈的空间相关性,C0/C0+C比值在9.2;～18.9;,表明空间变异主要由土壤母质、地形、气候等非人为因素引起;土壤速效磷、钾具有中等相关性,C0/C0+C比值分别为50.7;和44.8;,表明其空间变异主要由施肥、作物、管理水平等人为因素引起.
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| 关 键 词： | 土壤 速效养分 空间变异 |
| 文章编号： | 1001-4330(2003)02-0103-03 |
| 收稿时间： | 2003-02-25 |
Study of Soil Available Nutrient Spatial Variability |
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| Abstract: | The spatial variability of soil nutrients in corn field of Luopu county Dulu town Halapu village using classical statistics method and geostatistics methods. Results showed that the soil available nutrient is middling variability, it become from 18% to 33%. Using geostatistics methods analysis spatial variability, evince that soil available om?totalN?N have relativity. C 0/C 0+C is 9.2%～18.9%, it showed that spatial variability cause by matrix of soil?topography?climate and so on, P?K have middling relativity, C 0/C 0+C is 50.7%?44.8%, it show that spatial variability cause by fertilizer?crop and level of manage. |
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| Keywords: | soil available nutrient spatial variability |
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