Methods for biomass stock estimation in Mediterranean maquis systems
Costantino Sirca (1-2) , Antonio Caddeo (1), Donatella Spano (1-2), Valentina Bacciu (2), Serena Marras (1-2)
iForest - Biogeosciences and Forestry, Volume 10, Issue 1, Pages 108-114 (2016)
doi: https://doi.org/10.3832/ifor1769-009
Published: Aug 21, 2016 - Copyright © 2016 SISEF
Research Articles
Abstract
As a result of Kyoto Protocol agreements, the scientific community increased its efforts to enhance the availability of biomass and organic carbon stock data in forest ecosystems. Nevertheless, a considerable data shortage has been recognized in estimating the stock of above-ground biomass (AGB) in Mediterranean maquis systems. This work aims at contributing in addressing such shortage by testing quick and non-disruptive methods to estimate the AGB stock in maquis species. Two methodologies were tested in three widespread sclerophyllous evergreen species (Pistacia lentiscus, Euphorbia dendroides, and Cystus monspeliensis). Both methodologies were based on the estimation of the apparent volume (AV): the first one assumed the shrub shape (or canopy) to be similar to a regular tridimensional solid, while the second method was based on plant digital images analysis. Results showed some differences in AV values estimated through the two methodologies, although a high correlation was found between them (R2 = 0.92-0.98) and with the AGB weight obtained from plant samples (R2 = 0.89-0.96). As a consequence, the shrubs apparent density values (i.e., weight/AV) vary depending on the method used for AV estimation. This should be taken into account when AV is used for AGB estimation. Besides, measurements of above-ground biomass were carried out to characterize the studied area. Results showed high variability in AGB values, ranging from 7.04 to 48.05 Mg ha-1 of dry matter.
Keywords
Shrubland, Allometric Equations, Above Ground Biomass, Apparent Volume
Authors’ Info
Authors’ address
Antonio Caddeo
Donatella Spano
Serena Marras
DIPNET - Department of Science for Nature and Environmental Resources, University of Sassari, v. de Nicola 9, I-07100 Sassari (Italy)
Donatella Spano
Valentina Bacciu
Serena Marras
Fondazione CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici, Divisione IAFES, v. de Nicola 9, I-07100 Sassari (Italy)
Corresponding author
Paper Info
Citation
Sirca C, Caddeo A, Spano D, Bacciu V, Marras S (2016). Methods for biomass stock estimation in Mediterranean maquis systems. iForest 10: 108-114. - doi: 10.3832/ifor1769-009
Academic Editor
Rupert Seidl
Paper history
Received: Jul 15, 2015
Accepted: Apr 21, 2016
First online: Aug 21, 2016
Publication Date: Feb 28, 2017
Publication Time: 4.07 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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