黑碳研究进展
Black Crbon:A Rview of Recent Research
查看参考文献105篇
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文摘
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黑碳由生物质和化石燃料不完全燃烧所产生的具有高度热稳定性的含碳物质,广泛存在于土壤、沉积物、大气乃至极地和高山的冰雪中。工业革命以来,人类活动促使大量的黑碳进入到环境中,导致全球黑碳的背景值显著升高。土壤和沉积物中的黑碳有着长时间尺度(约10000yr)的降解周期,在全球碳循环过程中起着部分“汇”的作用。大气和冰雪中的黑碳通过辐射强迫”作用吸收太阳辐射,促进全球变暖进而影响全球气候变化。目前主要有光学(optical)、热氧化(TO)、化学氧化 (CTO)等方法用于黑碳的分离和测试。大气中的黑碳研究一般采用光学法,而土壤和沉积物中的黑碳研究则主要采用化学氧化法。本文全面总结了黑碳在环境中的研究进展,并指出黑碳对全球变暖的贡献是今后黑碳的重要研究方向。 |
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其他语种文摘
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Black carbon, being mainly formed due to incomplete combustion of organic matter such as vegetation or fossil fuel, widly exists in soil, sediment, atmosphere and snow/ice of polar and alpine regions. A mass of anthropogenic black carbon has been emitted into the environment since the Industrial Revolution,thus the global background level of black carbon has greatly increased. Black carbon in soil and sediment, which possesses a long degradation periods (10000 yr scale), acts partially as a “sink”in global carbon cycle. Black carbon in atmosphere and snow/ice heating the Earth by“radiative forcing”,hence change the global climate. Sveral methods such as optical method,thermal oxidation(TO),chemical thermal oxidation(CTO), are used to separate and determine black carbon at present. The optical method is generally used in atmosphere research whereas chemical and thermal oxidation is widely used in soil and sediment research. |
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来源
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地球与环境
,2010,38(1):98-108 【核心库】
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关键词
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黑碳
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沉积物
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标准物质
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化学氧化法(CTO)
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地址
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1.
中国科学院地球化学研究所, 贵州, 贵阳, 550002
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中国科学院地质与地球物理研究所, 北京, 100029
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语种
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中文 |
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文献类型
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综述型 |
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ISSN
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1672-9250 |
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学科
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地质学 |
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基金
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国家973计划
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中国科学院知识创新工程重要方向项目
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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:3902516
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105
共6页
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