土壤侵蚀对农田中土壤有机碳的影响
Effect of Soil Erosion on Soil Organic Carbon in Cropland Landscape
查看参考文献49篇
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文摘
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碳主要在通气状态下释放出CO2以温室效应的形式影响全球变化.当前,农田土壤固碳过程是土壤碳循环研究中的一个前沿领域,其中农田土壤再分布过程能否导致土壤固碳已引起科学上、政治上以及社会上广泛的兴趣.本文从不同的尺度阐述土壤再分布过程对土壤有机碳的影响.分别阐述土壤侵蚀和再沉积过程在全球碳循环,陆地碳库研究中的作用,土壤侵蚀与农田景观土壤有机碳动态、活性组份以及碳通量之间的关系,土壤再分布过程引起的土壤固碳机理.在此基础上指出今后迫切需要解决的问题. |
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其他语种文摘
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Soil organic carbon releases C02 at the aeration status, which results in greenhouse effect and consequently influences global change. Currently sequestrating CO2 to agricultural soil is a front field in soil carbon cycle studies, among which whether agricultural soil redistribution leads to carbon sequestration has developed scientific,political and social interests. In this pa-per, the effects of soil redistribution on soil organic carbon in multi-scales are discussed. The significance of soil erosion and redeposition in the study of terrestrial carbon cycles, the rela-tionship between soil redistribution and the missing sink, and the mechanism of carbon seques-tration resulting from soil redistribution are expounded. Based on above analysis the stringent problems needed to resolve are put forward. |
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来源
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地理科学进展
,2004,23(2):77-87 【核心库】
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关键词
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土壤侵蚀
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土壤有机碳(SOC)
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土壤固碳
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农田土壤
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地址
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中国科学院东北地理与农业生态研究所, 长春, 130012
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-6301 |
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学科
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农业基础科学 |
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基金
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中国科学院“百人计划”项目
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国家自然科学基金
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文献收藏号
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CSCD:1706858
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