Carbon and water vapor balance in a subtropical pine plantation
Gabriela Posse (1) , Nuria Lewczuk (1-2), Klaus Richter (1), Piedad Cristiano (2-3)
iForest - Biogeosciences and Forestry, Volume 9, Issue 5, Pages 736-742 (2016)
doi: https://doi.org/10.3832/ifor1815-009
Published: May 25, 2016 - Copyright © 2016 SISEF
Research Articles
Abstract
Afforestation has been proposed as an effective tool for protecting primary and/or secondary forests and for mitigating atmospheric CO2. However, the dynamics of primary productivity differs between plantations and natural forests. The objective of this work was to evaluate the potential for carbon storage of a commercial pine plantation by determining its carbon balance. Measurements started when trees were aged 6 and ended when they were older than 8 years. We measured CO2 and water vapor concentrations using the Eddy covariance method. Gross primary productivity in 2010 and 2011 was 4290 ± 473 g C m-2 and 4015 ± 485 g C m-2, respectively. Ecosystem respiration ranged between 7 and 20 g C m-2 d-1, reaching peaks in all Februaries. Of the 30 months monitored, the plantation acted as carbon source for 21 months and as carbon sink for 6 months, while values close to neutrality were obtained during 3 months. The positive balance representing CO2 loss by the system was most likely due to the cut branches left on the ground following pruning activities. The plantation was subjected to pruning in January and September 2008 and to sanitary pruning in October 2010. In all cases, cut branches were not removed but remained on the ground. Residue management seems to have a very important impact on carbon balance.
Keywords
Afforestation, Carbon Source, Ecosystem Respiration, Pruning, Thinning
Authors’ Info
Authors’ address
Nuria Lewczuk
Klaus Richter
INTA - Instituto de Clima y Agua, N. Repetto y De Los Reseros s/n, 1686 Hurlingham, Provincia de Buenos Aires (Argentina)
Departamento de Ecología, Genética y Evolución, Instituto IEGEBA (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (Argentina)
Corresponding author
Paper Info
Citation
Posse G, Lewczuk N, Richter K, Cristiano P (2016). Carbon and water vapor balance in a subtropical pine plantation. iForest 9: 736-742. - doi: 10.3832/ifor1815-009
Academic Editor
Tamir Klein
Paper history
Received: Aug 18, 2015
Accepted: Jan 28, 2016
First online: May 25, 2016
Publication Date: Oct 13, 2016
Publication Time: 3.93 months
Copyright Information
© SISEF - The Italian Society of Silviculture and Forest Ecology 2016
Open Access
This article is distributed under the terms of the Creative Commons Attribution-Non Commercial 4.0 International (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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