2007年6月
Weak northern and strong tropical land carbon uptake from vertical profiles of atmospheric CO(2)
SCIENCE
- 巻
- 316
- 号
- 5832
- 開始ページ
- 1732
- 終了ページ
- 1735
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1126/science.1137004
- 出版者・発行元
- AMER ASSOC ADVANCEMENT SCIENCE
Measurements of midday vertical atmospheric CO(2) distributions reveal annual-mean vertical CO(2) gradients that are inconsistent with atmospheric models that estimate a large transfer of terrestrial carbon from tropical to northern latitudes. The three models that most closely reproduce the observed annual-mean vertical CO(2) gradients estimate weaker northern uptake of -1.5 petagrams of carbon per year (Pg C year(-1)) and weaker tropical emission of +0.1 Pg C year(-1) compared with previous consensus estimates of -2.4 and +1.8 Pg C year(-1), respectively. This suggests that northern terrestrial uptake of industrial CO(2) emissions plays a smaller role than previously thought and that, after subtracting land-use emissions, tropical ecosystems may currently be strong sinks for CO(2).
- リンク情報
- ID情報
-
- DOI : 10.1126/science.1137004
- ISSN : 0036-8075
- Web of Science ID : WOS:000247400500043