Assessing most relevant factors to simulate current annual increments of beech forests in Italy
Marta Chiesi (1) , Fabio Maselli (1), Gherardo Chirici (2), Piermaria Corona (3), Fabio Lombardi (2), Roberto Tognetti (2-4), Marco Marchetti (2)
iForest - Biogeosciences and Forestry, Volume 7, Issue 2, Pages 115-122 (2014)
doi: https://doi.org/10.3832/ifor0943-007
Published: Dec 31, 2013 - Copyright © 2014 SISEF
Research Articles
Abstract
Recent work of our research group demonstrated the applicability of a calibrated bio-geochemical model, BIOME-BGC, for estimating current annual increments (CAIs) of Mediterranean forests. In the current case, the model is applied to assess the gross primary production (GPP) of nine beech forest sites in Italy using a previously produced data set of meteorological data descriptive of a ten-year period (1999-2008). The obtained GPP estimates are integrated with relevant autotrophic respirations and allocations to derive forest net primary production (NPP) averages for the same forests. The simulations are performed assuming different levels of ecosystem disequilibrium, i.e. progressively taking into account the effects of specific site history in terms of woody biomass removal and stand aging.The NPP estimates, converted into CAIs by means of specific coefficients, are validated through comparison with data derived from tree growth measurements. Results indicate that the modelling of quasi-equilibrium conditions tends to produce overestimated CAI values, particularly for not fully stocked, old stands. The inclusion of information on existing biomass introduces a partial improvement, while optimal results are obtained when information on ecosystem development phase is considered. The implications of using different NPP estimation methods are finally discussed in the perspective of assessing the forest carbon budget on a national basis.
Keywords
CAI, NPP, Dendrochronological Data, Volume, Stand Age, BIOME-BGC
Authors’ Info
Authors’ address
Fabio Lombardi
Roberto Tognetti
Marco Marchetti
Dipartimento di Bioscienze e Territorio (DIBT), University of Molise, c.da Fonte Lappone, I-86090 Pesche (Italy)
Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Forestry Research Centre (CRA-SEL), v.le Santa Margherita 70, I-01100 Arezzo (Italy)
The EFI Project Centre on Mountain Forests (MOUNTFOR), Fondazione Edmund Mach, v. Edmund Mach, I-38010 San Michele all’Adige (Italy)
Corresponding author
Paper Info
Citation
Chiesi M, Maselli F, Chirici G, Corona P, Lombardi F, Tognetti R, Marchetti M (2014). Assessing most relevant factors to simulate current annual increments of beech forests in Italy. iForest 7: 115-122. - doi: 10.3832/ifor0943-007
Academic Editor
Giorgio Matteucci
Paper history
Received: Jan 04, 2013
Accepted: Nov 22, 2013
First online: Dec 31, 2013
Publication Date: Apr 02, 2014
Publication Time: 1.30 months
Copyright Information
© SISEF - The Italian Society of Silviculture and Forest Ecology 2014
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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