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Boreal ecosystems sequestered more carbon in warmer years Higuchi, Kaz; Chen, Baozhang; Chen, Jing M.; Black, T. Andrew; Chan, Douglas; Liu, Jane; Tans, Pieter; Worthy, Douglas E. J.

Abstract

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 (103–104 km2) 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. An edited version of this paper was published by AGU. Copyright 2006 American Geophysical Union.

Item Metadata

Title
Boreal ecosystems sequestered more carbon in warmer years
Creator
Higuchi, Kaz; Chen, Baozhang; Chen, Jing M.; Black, T. Andrew; Chan, Douglas; Liu, Jane; Tans, Pieter; Worthy, Douglas E. J.
Publisher
American Geophysical Union
Date Issued
2006-05
Description
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 (103–104 km2) 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. An edited version of this paper was published by AGU. Copyright 2006 American Geophysical Union.
Genre
Article
Type
Text
Language
eng
Date Available
2011-05-25
Provider
Vancouver : University of British Columbia Library
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International
DOI
10.14288/1.0041924
URI
http://hdl.handle.net/2429/34832
Affiliation
Land and Food Systems, Faculty of
Citation
Chen, Jing M.; Chen, Baozhang; Higuchi, Kaz; Liu, Jane; Chan, Douglas; Worthy, Douglas E. J.; Tans, Pieter; Black, T. Andrew. 2006. Boreal ecosystems sequestered more carbon in warmer years. Geophysical Research Letters 33 L10803
Publisher DOI
10.1029/2006GL025919
Peer Review Status
Reviewed
Scholarly Level
Faculty
Copyright Holder
Black, T. Andrew; Black, T. Andrew
Rights URI
http://creativecommons.org/licenses/by-nc-nd/4.0/
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DSpace

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Attribution-NonCommercial-NoDerivatives 4.0 International