| 地点因素对中国地带性土壤表层有机碳含量的影响 |
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| 引用本文： | 戴万宏,黄耀.地点因素对中国地带性土壤表层有机碳含量的影响[J].安徽师范大学学报(自然科学版),2006,29(1):64-69. |
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| 作者姓名： | 戴万宏 黄耀 |
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| 作者单位： | 1. 安徽师范大学,环境科学学院,安徽,芜湖,241000;中国科学院,大气物理研究所,北京,100029
2. 中国科学院,大气物理研究所,北京,100029 |
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| 基金项目： | 中国科学院知识创新工程项目
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国家重点基础研究发展计划(973计划)
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Special project grants
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安徽师范大学校科研和教改项目 |
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| 摘 要： | 利用中国第二次土壤普查确定的886个典型地带性土种剖面资料,通过统计分析方法研究了地点因素(土纲、质地、海拔、酸碱度和土地利用方式)对地带性土壤表层有机碳含量的影响.结果表明,地点因素显著影响地带性土壤表层有机碳含量;地点因素对耕作土壤表层有机碳的影响明显强于非耕作土壤;地点因素分别解释耕作土壤和非耕作土壤表层有机碳含量变异的24.7%和48.5%.耕作土壤和非耕作土壤有机碳含量的主要控制因素有所不同.
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| 关 键 词： | 地点因素 土壤有机碳 地带性土壤 方差分析 典型相关分析 site variable SOC zonal soil ANOVA canonical correlation analysis 地点因素 中国 地带性 土壤表层 有机碳含量 影响 SOILS CONCENTRATION SOIL ORGANIC CARBON SURFACE VARIABLES SITE weak correlations variance controlling factors multiple regression analysis ANOVA model contribution |
| 文章编号： | 1001-2443（2006）01-0064-06 |
| 收稿时间： | 2005-05-25 |
| 修稿时间： | 2005年5月25日 |
EFFECTS OF SITE VARIABLES ON SURFACE SOIL ORGANIC CARBON CONCENTRATION IN ZONAL SOILS OF CHINA |
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| DAI Wan-hong,HUANG Yao.EFFECTS OF SITE VARIABLES ON SURFACE SOIL ORGANIC CARBON CONCENTRATION IN ZONAL SOILS OF CHINA[J].Journal of Anhui Normal University(Natural Science Edition),2006,29(1):64-69. |
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| Authors: | DAI Wan-hong HUANG Yao |
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| Institution: | 1. College of Environmental Sciences, Anhui Normal University, Wuhu 241000, China;2. Institute of Atmospheric Physics, Chinese Academy of Sciences, Bcijing 100029, China |
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| Abstract: | An understanding of influences of site variables on surface soil organic carbon(SOC)concentrationis i mportant to plan future land use for carbon sequestration and sustaining agriculturalproduction.This study was conducted to clarify the effects of site variables(soil order,texture,altitude,acidity/alkalinity and land use) on surface SOC concentration of zonal soils of China.Theresults showed that the SOCconcentration was generally correlated significantly with the selected sitevariables(p<0.001) and the correlation was stronger in un-cultivated soils than in cultivated soils.The ANOVAfactorial model esti mated that the contribution of site variables to the variation of SOCconcentration was 24.7 %in cultivated soils,48.5 %in un-cultivated soils,which was 6.6 %and 10.4 %higher thanthat described by univariate multiple regressionanalysis,respectively.Relatively weakcorrelations and less explainable variance observed in cultivated soils suggest that actual controllingfactors over SOCconcentration differ fromthose in un-cultivated soils. |
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| Keywords: | site variable SOC zonal soil ANOVA canonical correlation analysis |
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