| 东北黑土有机碳、全氮空间分布特征 |
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| 引用本文： | 解宏图,郑立臣,何红波,张旭东.东北黑土有机碳、全氮空间分布特征[J].土壤通报,2006,37(6):1058-1061. |
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| 作者姓名： | 解宏图 郑立臣 何红波 张旭东 |
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| 作者单位： | 1. 中国科学院,沈阳应用生态研究所,辽宁,沈阳,110016;中国科学院研究生院,北京,100049
2. 中国科学院,沈阳应用生态研究所,辽宁,沈阳,110016 |
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| 基金项目： | 中国科学院方向性项目;国家自然科学基金 |
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| 摘 要： | 应用经典统计学方法,分析了东北黑土表层1100个样点的土壤有机碳(SOC)和全氮空间分布规律。结果表明土壤有机碳和全氮平均含量分别为19.25 g kg-1和1.89 g kg-1,从南到北随纬度增加而增加,土壤有机碳和全氮与纬度的相关系数分别为0.70和0.76;土壤有机碳、全氮与黏粒、砂粒在P<0.01水平上显著相关,其中与砂粒为显著负相关,而SOC与粉粒则在P<0.05水平下显著正相关;土壤全氮与粉粒没有相关性。
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| 关 键 词： | 有机碳 全氮 空间分布 质地 黑土 |
| 文章编号： | 0564-3945(2006)06-1058-04 |
| 修稿时间： | 2005年11月12 |
Spatial Distribution of Soil Organic Carbon and Total Nitrogen in Mollisols in the Northeast of China |
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| XIE Hong-tu,ZHENG Li-chen,HE Hong-bo,ZHANG Xu-dong.Spatial Distribution of Soil Organic Carbon and Total Nitrogen in Mollisols in the Northeast of China[J].Chinese Journal of Soil Science,2006,37(6):1058-1061. |
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| Authors: | XIE Hong-tu ZHENG Li-chen HE Hong-bo ZHANG Xu-dong |
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| Abstract: | Based on the classical statistic method,the spatial distribution of soil organic carbon(SOC) and total nitrogen(TN) of 1100 surface samples in the Mollisol area of the Northeast of China was investigated.The mean concentrations of SOC and TN are 19.25g kg~(-1) and 1.89g kg~(-1),respectively.The concentrations of SOC and TN increased gradually from south to north following latitude changes with relative coefficient 0.70 and 0.76 respectively.The significant positive conrelation of SOC,TN with clay contents was found,while negative of SOC,TN with sand contents was obvious(P<0.01).Nevertheless,SOC is positively related to silt contents(P<0.05).but there is no such a correlation for TN. |
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| Keywords: | Organic carbon Total nitrogen Spatial distribution Texture Mollisols |
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