Global nitrogen deposition and carbon sinks

被引：565

作者：

Reay, Dave S. ^{[1
]}

Dentener, Frank ^{[2
]}

Smith, Pete ^{[3
]}

Grace, John ^{[1
]}

Feely, Richard A. ^{[4
]}

机构：

[1] Univ Edinburgh, Sch Geosci, Edinburgh EH9 3JN, Midlothian, Scotland

[2] Commiss European Communities, Joint Res Ctr, Inst Environm & Sustainabil, Climate Change Unit, I-21020 Ispra, Italy

[3] Univ Aberdeen, Sch Biol Sci, Inst Environm & Biol Sci, Aberdeen AB24 3UU, Scotland

[4] NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA

来源：

NATURE GEOSCIENCE | 2008年 / 1卷 / 07期

基金：

英国自然环境研究理事会;

关键词：

D O I：

10.1038/ngeo230

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Land and ocean uptake of carbon dioxide plays a critical role in determining atmospheric carbon dioxide levels. Future increases in nitrogen deposition have been predicted to increase the size of these terrestrial and marine carbon sinks, but although higher rates of nitrogen deposition might enhance carbon uptake in northern and tropical forests, they will probably have less of an impact on ocean sink strength. Combined, the land and ocean sinks may sequester an additional 10% of anthropogenic cabon emissions by 2030 owing to increased nitrogen inputs, but a more conservative estimate of 1 to 2% is more likely. Thus nitrogen-induced increases in the strength of land and ocean sinks are unlikely to keep pace with future increases in carbon dioxide.

引用

页码：430 / 437

页数：8

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