Boreal ecosystems sequestered more carbon in warmer years

被引：29

作者：

Chen, Jing M.

Chen, Baozhang

Higuchi, Kaz

Liu, Jane

Chan, Douglas

Worthy, Douglas

Tans, Pieter

Black, Andy

机构：

[1] Univ Toronto, Dept Geog, Toronto, ON M5S 3G3, Canada

[2] Meteorol Serv Canada, Toronto, ON M3H 5T4, Canada

[3] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

[4] NOAA, CMDL, Boulder, CO 80305 USA

[5] Univ British Columbia, Dept Soil Sci, Vancouver, BC V6T 1Z4, Canada

来源：

GEOPHYSICAL RESEARCH LETTERS | 2006年 / 33卷 / 10期

关键词：

D O I：

10.1029/2006GL025919

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A 13-year ( 1990 - 1996, 1999 - 2004), hourly air CO2 record measured on a 40 m tower in northern Canada is analyzed against interpolated marine boundary layer CO2 data representing the free troposphere above the tower. In warmer years, the planetary boundary layer was more depleted with CO2, suggesting that the land area (10(4) km(2)) upwind of the tower sequestered more carbon. After using a novel approach to derive the photosynthetic flux from the air CO2 diurnal variation pattern, it is confirmed that boreal ecosystem photosynthesis increased more than ecosystem respiration in warmer years.

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页数：4

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