陆地水-碳酸盐-CO2-水生光合生物相互作用产生碳汇的重要性（英文）

被引：54

作者：

刘再华 ^{[1
]}

Wolfgang Dreybrodt ^{[2
]}

机构：

[1] State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences

[2] Faculty of Physics and Electrical Engineering, University of Bremen, Bremen,

来源：

Science Bulletin | 2015年 / 60卷 / 02期

关键词：

Carbon sink; H2O–carbonate–CO2– aquatic phototroph interaction; Carbonate weathering; Biological carbon pump; Land aquatic ecosystem; Global change;

D O I：

暂无

中图分类号：

X171 [生态系统与污染生态学];

学科分类号：

摘要：

全球变化科学最重要的问题之一是如何平衡大气CO2收支.至今仍存在每年10亿吨级的陆地碳汇不知去向,即所谓的"遗失碳汇"问题.这些不明碳汇的位置、量级、变化和形成机制目前仍不确定,并存在巨大争议.尽管全球变化和岩石化学风化的正相关关系已体现在大气CO2的地球化学模型中,但这一反馈被认为只在地质长时间尺度起作用,因此,针对人类活动对碳收支影响的讨论时常不考虑风化碳汇的贡献.本文基于岩石风化研究的最新进展,并综合水生生态系统碳泵效应研究的成果,发现陆地水-碳酸盐-CO2-水生光合生物相互作用产生的碳汇不仅很重要(每年近5亿吨碳),而且在气候变暖和土地利用变化的影响下呈现显著的增加趋势,因此,必须包括在现今全球碳收支的评价中.

引用

页码：182 / 191+146 +146

页数：11

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