| 东北黑土有机无机复合体组成及有机碳空间分布特征 |
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| 引用本文： | 郑庆福,赵兰坡.东北黑土有机无机复合体组成及有机碳空间分布特征[J].水土保持学报,2010,24(1). |
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| 作者姓名： | 郑庆福 赵兰坡 |
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| 作者单位： | 吉林农业大学资源与环境学院,长春,130118 |
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| 基金项目： | 国家沃土工程项目(2006BAD25B05); 粮食丰产工程(2006BAD02A10)项目; 国家“863”计划(2006AA10A309) |
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| 摘 要： | 以东北典型黑土区为研究对象,测定土壤不同粒级有机无机复合体、矿物颗粒和有机碳含量,探讨土壤有机无机复合体组成及其空间分布特征,分析土壤对有机碳的复合机制。结果表明:东北黑土有机无机复合体组成主要以细砂粒复合体为主,黏、粉粒复合体次之,其含量均随剖面发生层向下呈减少趋势,南北区域上,也呈降低趋势。有机碳在各级复合体中及土壤中的含量均随着复合体的粒径增大而减少。各级复合体有机碳在土壤中均呈随剖面发生层向下由A层呈指数函数下降,在区域上,因东北黑土剖面有机碳含量及南北温度差异有机无机复合体含量曲线随区域差异有所不同。同时也说明东北黑土黏粒仍有较大的碳库容量。从其组成和组分间的相关分析,黏粒是形成和增加粉粒复合体的基础,从而利于增加土壤有机碳储量和改善土壤团聚结构。
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| 关 键 词： | 黑土 有机无机复合体 有机碳 |
Fraction of Organic Mineral Complex and Spatial Distribution of Organic Carbon of Black Soil in Northeast China |
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| ZHENG Qing-fu,ZHAO Lan-po.Fraction of Organic Mineral Complex and Spatial Distribution of Organic Carbon of Black Soil in Northeast China[J].Journal of Soil and Water Conservation,2010,24(1). |
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| Authors: | ZHENG Qing-fu ZHAO Lan-po |
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| Institution: | ZHENG Qing-fu1,ZHAO Lan-po1 (1.College of Resources , Environment Science,Jilin Agricultural University\' Changchun 130118,2.Cultivating Base,National Key Laboratory for Jilin Province Ecological Restoration , Ecosystem Management,Changchun 130118) |
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| Abstract: | The black soil of northeast China was selected in a case study to analyze composition and spatial distribution of soil organic mineral complex,and to explain complexion mechanism of organic and mineral on soil by measuring contents of organic mineral complexes,mineral particles organic character of different size. Results showed that organic mineral complexes in black soil primarily compose by the fine sand organic mineral complex,next clay's and silt's. Each of their contents decreasing with profile develo... |
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| Keywords: | black soil organic mineral complexes organic carbon |
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