| 黄水河小流域土壤养分分布及其与地形的关系 |
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| 引用本文： | 宋轩,李立东,寇长林,陈杰.黄水河小流域土壤养分分布及其与地形的关系[J].应用生态学报,2011,22(12):3163-3168. |
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| 作者姓名： | 宋轩 李立东 寇长林 陈杰 |
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| 作者单位： | 1. 郑州大学水利与环境学院,郑州,450001
2. 河南省农业科学院植物营养与资源环境研究所,郑州,450002 |
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| 基金项目： | 国家自然科学基金项目(40971128); “十一五”国家科技支撑计(2007BAD87B09)资助 |
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| 摘 要： | 基于GIS和地统计学原理,对丹江口水库水源区黄水河小流域土壤养分空间分布及其与地形因子间的关系进行分析.结果表明:研究区土壤全氮、全磷、有机质的变异系数分别为51％、66％和85％,为中等变异,土壤速效磷的变异系数为161％,属强变异;土壤全氮和有机质表现为显著正向空间自相关,速效磷和全磷的空间自相关性较弱;海拔是影响该区土壤养分分布的主要因素,其对全氮、全磷和有机质都具有极显著影响,坡度和剖面曲率显著影响全氮和有机质分布.建立了地形因子与土壤养分含量空间分布的回归预测方程,并进行了数字化制图输出,为研究区土壤资源的精确管理提供了数据支持.
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| 关 键 词： | 土壤养分 地统计学 空间自相关 地形因子 |
Soil nutrient distribution and its relations with topography in Huangshui River drainage basin |
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| SONG Xuan
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LI Li-dong
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KOU Chang-lin
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CHEN Jie.Soil nutrient distribution and its relations with topography in Huangshui River drainage basin[J].Chinese Journal of Applied Ecology,2011,22(12):3163-3168. |
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| Authors: | SONG Xuan LI Li-dong KOU Chang-lin CHEN Jie |
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| Institution: | SONG Xuan1,LI Li-dong1,KOU Chang-lin2,CHEN Jie1(1School of Water Conservancy and Environment,Zhengzhou University,Zhengzhou 450001,China,2Institute of Plant Nutrition & Resource Environment,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China). |
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| Abstract: | By using GIS and geostatistic techniques,this paper studied the spatial distribution patterns of soil nutrients and their relationships with topographic factors in Huangshui River drainage basin,a water source of Danjiangkou Reservoir.In the study area,the soil total nitrogen,total phosphorus,and organic matter varied spatially at medium level,with the variation coefficients being 51%,66%,and 85%,respectively,whereas the soil available phosphorus displayed a strong spatial variation,with the variation coeff... |
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| Keywords: | soil nutrient geostatistcs spatial autocorrelation topographic factor |
| 本文献已被 CNKI 万方数据 PubMed 等数据库收录！ |
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