Simulation, calibration and validation protocols for the model 3D-CMCC-CNR-FEM: a case study in the Bonis’ watershed (Calabria, Italy)

Collalti, Alessio; Biondo, B; Buttafuoco, B; Maesano, Mauro; Caloiero, C; Luca, Laura Cristina; Pellicone, P; Ricca, Robustino; Salvati, Stefano; Veltri,; Mugnozza, S M Scarascia; Matteucci, Marco

doi:10.3832/efor2368-014

Cited by 11 publications

(10 citation statements)

References 19 publications

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“…The 3D‐CMCC FEM (EuroMediterranean Centre on Climate Change Forest Ecosystem Model, Collalti et al, , , ; Marconi et al, ) is a stand‐scale process‐based model simulating photosynthesis, autotrophic respiration, and net primary productivity of representative average trees grouped into cohorts (sensu Fischer et al, ), at a daily temporal resolution (for a full description of model principles grounded and formulations, see Collalti et al, , and Marconi et al, ; supporting information Table S1).…”

Section: Methodsmentioning

confidence: 99%

Thinning Can Reduce Losses in Carbon Use Efficiency and Carbon Stocks in Managed Forests Under Warmer Climate

Collalti

Trotta

Keenan

et al. 2018

J Adv Model Earth Syst

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Forest carbon use efficiency (CUE, the ratio of net to gross primary productivity) represents the fraction of photosynthesis that is not used for plant respiration. Although important, it is often neglected in climate change impact analyses. Here we assess the potential impact of thinning on projected carbon cycle dynamics and implications for forest CUE and its components (i.e., gross and net primary productivity and plant respiration), as well as on forest biomass production. Using a detailed process‐based forest ecosystem model forced by climate outputs of five Earth System Models under four representative climate scenarios, we investigate the sensitivity of the projected future changes in the autotrophic carbon budget of three representative European forests. We focus on changes in CUE and carbon stocks as a result of warming, rising atmospheric CO 2 concentration, and forest thinning. Results show that autotrophic carbon sequestration decreases with forest development, and the decrease is faster with warming and in unthinned forests. This suggests that the combined impacts of climate change and changing CO 2 concentrations lead the forests to grow faster, mature earlier, and also die younger. In addition, we show that under future climate conditions, forest thinning could mitigate the decrease in CUE, increase carbon allocation into more recalcitrant woody pools, and reduce physiological‐climate‐induced mortality risks. Altogether, our results show that thinning can improve the efficacy of forest‐based mitigation strategies and should be carefully considered within a portfolio of mitigation options.

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Section: Methodsmentioning

confidence: 99%

Thinning Can Reduce Losses in Carbon Use Efficiency and Carbon Stocks in Managed Forests Under Warmer Climate

Collalti

Trotta

Keenan

et al. 2018

J Adv Model Earth Syst

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“…The 3D-CMCC-FEM ( Three Dimensional - Coupled Model Carbon Cycle - Forest Ecosystem Module ; Collalti et al, 2014, 2016, 2017; Marconi et al, 2017; Mahnken et al, 2022; Dalmonech et al, 2022, 2024; Testolin et al, 2023) was initialized with the structural attributes of the newly created stands from 1997, which was consequently the starting year of all simulations. Modeled climate change simulations under different RCP-emissions scenarios started to differentiate in 2006 (up to 2100).…”

Section: Methodsmentioning

confidence: 99%

Stand age diversity and climate change affects forests’ resilience and stability, although unevenly

Vangi,

Dalmonech,

Cioccolo

et al. 2023

Preprint

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Forest age is the result of population dynamics, disturbance regimes, silviculture and plays an important role in the global Carbon (C) cycle. To examine the shaping effects of forest age on Carbon budget under current and future climate conditions, we used a biogeochemical-based model in three managed forest stands and then modeled their development as undisturbed systems. The model was forced with climate outputs under four representative climate scenarios over a matrix of 11 age classes for each stand. We find that the Net Primary Production (NPP) peak was reached in the middle-aged class (42- to-70-year-old) regardless of the climate scenario, while total C-woody stocks (tCWS) increased with age with different trajectories in the three sites, but not linearly as expected. Under climate change scenarios, the beech forest shows as expected increasing NPP with increasing atmospheric CO2 and temperature as much for younger age classes as for older ones. Conversely, in the spruce and Scots pine dominated sites NPP and tCWS decrease under climate change scenarios. ANOVA analysis applied as factorial analysis to model outputs shows that age and climate scenarios have all effects on forest carbon budget only if taken singularly while their combination reduces - if not totally weakens - any effect.

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“…The Bonis experimental watershed located in the mountain area of Sila Greca (39°28′49″ N, 16°32′07″ E; from 975 to 1330 m a.s.l.) in the Calabria region, southern Italy was chosen as the study area in this work (Collalti et al, 2017; Testolin et al, 2023). Almost 93% of its total area is covered by forests, dominated by ∼60 years old artificial Laricio pine stands.…”

Section: Use Casementioning

confidence: 99%

TimberTracer: A Comprehensive Framework for the Evaluation of Carbon Sequestration by Forest Management and Substitution of Harvested Wood Products.

Boukhris,

Collalti,

Lahssini

et al. 2024

Preprint

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Carbon storage in harvested wood products (HWPs) and the associated substitution effects resulting from their utilization over fossil fuels and energy-intensive materials are pivotal strategies in climate change mitigation. Recognition of this nature-based solution as integral to climate change mitigation targets is notably solidified in many Nationally Determined Contributions (NDCs) submitted by Parties under the Paris agreement. The need to integrate greenhouse gas (GHG) emissions and removals from HWPs in the accounting obligations under the Paris Agreement, along with the necessity to guide decision-making in forest management to optimize the climate change mitigation effect across the entire forest sector, necessitates typical decision-oriented tools known as carbon accounting models. Among these, wood products models (WPMs), that are specifically dedicated to projecting carbon in HWPs and potentially estimating the substitution effect. In this paper, we propose a novel, comprehensive framework called "TimberTracer" designed to explicitly simulating carbon stock in HWPs over temporal scales, substitution effects, and carbon emissions from wood decay and bioenergy. Furthermore, this model can be coupled with forest dynamics models to simulate the long-term effects and interaction between forest management and wood-use scenarios. The model, coupled with the 3D-CMCC-FEM growth model, was applied to the Laricio Pine (Pinus nigra subsp. laricio) situated in the Bonis watershed in southern Italy. The aim was to dynamically assess the impact of three forest management practices (clearcut, selective thinning, and shelterwood) and four wood-use scenarios (business as usual, increased recycling rate, extended average lifespan, and a simultaneous increase in both the recycling rate and the average lifespan), throughout ~140-year planning horizon (1958-2095), on the overall carbon balance. This investigation, covering HWPs stock, C emissions, and the substitution effect, revealed that selective thinning emerged as the optimal forest management scenario. Additionally, the simultaneous increase in both the recycling rate and the half-life time proved to be the optimal wood-use scenario.

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Simulation, calibration and validation protocols for the model 3D-CMCC-CNR-FEM: a case study in the Bonis’ watershed (Calabria, Italy)

Cited by 11 publications

References 19 publications

Thinning Can Reduce Losses in Carbon Use Efficiency and Carbon Stocks in Managed Forests Under Warmer Climate

Thinning Can Reduce Losses in Carbon Use Efficiency and Carbon Stocks in Managed Forests Under Warmer Climate

Stand age diversity and climate change affects forests’ resilience and stability, although unevenly

TimberTracer: A Comprehensive Framework for the Evaluation of Carbon Sequestration by Forest Management and Substitution of Harvested Wood Products.

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