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作 者 ：王效科,白艳莹,欧阳志云,苗鸿

期 刊 ：生态学报 2002年 22卷 1期 页码：94~103

关键词：碳汇；全球碳循环；热带；温带；CO2；氮沉降；

Keywords:carbon sink, global carbon cycle, tropic, temperate, CO 2 fertilization, N deposition,

摘 要 ：近 2 0多年来 ,大气碳收支不平衡 ,即碳失汇 ( Missing carbon sink) ,一直是全球碳循环研究的核心问题之一。在总结全球碳失汇的主要研究成果基础上 ,分析了碳失汇数量和可能分布地点 ,并对形成的主要原因 :CO2 施肥作用、氮沉降的变化、变暖促进氮矿化和早期破坏后的森林再生等 ,进行了综述和分析 ,指出了该问题的复杂性。

Abstract:The global carbon cycle has drawn special attention by policy makers and scientists. In December 1997, the Kyoto Protocol has been proposed by Parties to Climate Change Frame of United Nations, in which 39 industrialized countries are asked to impletement the duties of reduction of CO 2 emission. Based on recent estimation of global carbon change in the atmosphere, and ocean, anthropogenic carbon emission to the atmosphere (7.1 Pg/a) is more than the sum of carbon accumulated in the atmosphere (3.3±0.2 Pg ...

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