An Economic Comparison of Adaptation Strategies Towards a Drought-induced Risk of Forest Decline

Brèteau-Amores, Sandrine; Brunette, Marielle; Davi, Hendrik

doi:10.1016/j.ecolecon.2019.04.006

Cited by 17 publications

(10 citation statements)

References 43 publications

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“…We used the mean annual drought index (uDrAn) computed in ForClim to select and characterize drought years (details in Bugmann and Cramer (1998) and Elkin et al (2015)). The calculation of the drought index depends on the monthly ratio between evapotranspiration and the evaporative demand from the soil (sensu Eq.…”

Section: Identification Of Severe Drought Yearsmentioning

confidence: 99%

“…Improvements in ForClim Figure 8 Effect of stand density on the evapotranspirative demand from vegetation *** Growth function Table 3 Minimum and maximum annual tree-ring width (TRW) ratios *** Alternative background mortality 2.4. Identification of severe drought years *** Description of the process Figure 9 Mean annual drought index Additional information on model parameters Effect of stand density on the evapotranspirative demand from vegetation The evapotranspirative demand (D) and water supply from the soil (S) are the base of the drought index calculation in ForClim (Bugmann and Cramer 1998). Elkin et al (2015) functionally coupled the vegetation leaf area index (LAI) to the water supply side to expand the framework and explicitly consider the effect of vegetation in calculating the drought index.…”

Section: Section In Manuscript Subsectionmentioning

confidence: 99%

“…The new equation was initially developed by Thrippleton et al (2018) to account for the contribution of different stand vertical layers to the stand water demand in the spatially explicit model LandClim. The new demand factor is based on the original formulation in Bugmann and Cramer (1998) and in the empirical linear relationship between stand water use and LAI used in Elkin et al (2015) (see Figure 8).…”

Section: Section In Manuscript Subsectionmentioning

confidence: 99%

“…where PET is potential evapotranspiration (based on the approach of Thornthwaite and Mather, 1957) and P i is the amount of water intercepted by the canopy (see Bugmann and Cramer (1998) and Thrippleton et al (2018) for further details). Here, we present the linear equation used to calculate F vegetation , dependent on LAI (Eq.…”

Section: Section In Manuscript Subsectionmentioning

confidence: 99%

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Magnitude and timing of density reduction are key for the resilience to severe drought in conifer-broadleaf mixed forests in Central Europe

Zamora-Pereira

Yousefpour

Cailleret

et al. 2021

Annals of Forest Science

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Key message We applied a modified forest gap model (ForClim) to depict changes in stand water transpiration via density reduction as a forest adaptation strategy. This approach is the key to analyzing the ecological resilience to drought, stress-induced mortality, and economic efficiency of managed mixed forest stands in Central Europe. The results show that specific geographic conditions and forest composition define the optimal stand density of drought-resilient forests. Context Reducing stand density has been recognized as a valid strategy to increase forest resilience to drought. Moreover, to develop adaptive management strategies (AMS) under climate change, it is crucial to consider not only drought resilience but also the economic efficiency of alternative AMS proposed to alleviate drought effects. Aims To analyze how decreased inter-tree competition among overstorey trees affects stand vulnerability to drought and its expected yield. Methods We integrated experimental thinning data and historical responses to drought years in a climate-sensitive forest gap model, ForClim. We tested a business as usual (BAU) and three alternative AMS (“do-nothing,” low- and high-intensity overstorey removal) in mixed stands of Norway spruce (Picea abies), silver fir (Abies alba), and European beech (Fagus sylvatica) along an elevational gradient of 520–1020 m a.s.l. in Central Europe. Results High-intensity overstorey removal in mixed stands of all three species considerably increased forest volume growth resilience to drought and decreased stress-induced mortality by two-thirds vis à vis a “do-nothing” strategy. In sites including only conifer species, forest resilience was equally improved by high- and low-intensity overstorey removal compared to that in the BAU strategy. Regarding the timber economy, high-intensity overstorey removal resulted in a higher economic revenue of mixed stands (~ 22% higher net present value than other strategies) on the high-elevation sites (> 1000 m a.s.l.). Conclusion Modifying forest density and structure by overstorey removal is principally suitable to increase forest resilience to drought and improve its economic efficiency. The magnitude of the effect however depends on the geographical setting and forest composition.

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Section: Identification Of Severe Drought Yearsmentioning

confidence: 99%

Section: Section In Manuscript Subsectionmentioning

confidence: 99%

Section: Section In Manuscript Subsectionmentioning

confidence: 99%

Section: Section In Manuscript Subsectionmentioning

confidence: 99%

See 2 more Smart Citations

Magnitude and timing of density reduction are key for the resilience to severe drought in conifer-broadleaf mixed forests in Central Europe

Zamora-Pereira

Yousefpour

Cailleret

et al. 2021

Annals of Forest Science

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“…Long-term drought can lead to economic and social losses. Forests play a crucial role in wood production but also offer many ecosystem services such as carbon storage, prevention of soil erosion and maintenance of biodiversity [2].…”

Section: Introductionmentioning

confidence: 99%

Economic and Production Effect of Tree Species Change as a Result of Adaptation to Climate Change

Remeš

Pulkrab

Bílek

et al. 2020

Forests

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Climate change is increasingly affecting forest ecosystems. Modifying the species composition towards species mixtures with a higher potential to mitigate the negative effect of climate change is one of the basic silvicultural measures. Potential economic and production impacts of these actions need to be assessed. This study therefore aims to evaluate the economic and production effect of species composition change as a result of the adaptation of forest ecosystems to climate change. The differences between the value production of Norway spruce (Picea abies /L./Karst.), Douglas fir (Pseudotsuga menziessi/MIRBEL/FRANCO) and European beech (Fagus sylvatica L.) on fresh soils (represented mainly by mesotrophic cambisols), and soils affected by ground water (mainly pseudogley forms of cambisols and pseudogleys) were evaluated. The study was conducted on the area of the forest enterprise of the Czech University of Life Sciences (UFE) situated in the Central Bohemia region. For a model comparison of height and volume growth of Douglas fir and Norway spruce in this area, all stands (pure and mixed) with both species represented were analysed using the data from the current forest management plan and Korf’s growth function. The course of current and mean height increments over time is very similar, yet with constantly higher annual increments for Douglas fir. In 100 years, the mean stand height of Douglas fir is 6 m larger than that of Norway spruce. Production and economic potential were also evaluated. At the rotation age, the volume and value production of Douglas fir was 30% to 50% higher than that of Norway spruce. A higher share of Douglas fir in the total forest area would lead to an important value increment of the forests in the study area. Different results were achieved by comparing the yield potential of Norway spruce with European beech, which most often substitutes spruce at middle altitudes. Beech potential yield is only 40–55% of the spruce yield level.

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Adaptive measures for mountain Mediterranean forest ecosystem services under climate and land cover change in the Mont-Ventoux regional nature park, France

et al. 2021

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Climate change (CC) and land use and land cover change (LULCC) threaten Mediterranean forests and the ecosystem services (ES) they provide. In complex socio-ecological systems and under high uncertainties, the resilience of ES has become the target objective for adaptive management strategies driven by decision makers and local stakeholders. This work develops an integrative and territorial approach to combining biophysical modeling and local managers' assessments to elaborate scenarios of LULCC in response to climate and socioeconomic changes. It also evaluates the impacts of forest ecosystem changes on coupled ES for different time horizons for a case study of the mountain Mediterranean forests of Mont-Ventoux Natural Regional Park. The results demonstrate first that the future ES provisions predicted by biophysical modeling in this area are less affected by CC than expected by local managers. Furthermore, LULCC increases the changes in ES provision and accentuates the difference between climate scenarios. These results originate from a combination of two effects:(1) pessimistic predictions by local managers and, as a consequence and (2) anticipatory actions that tend to reinforce or even accelerate the expected changes in the mountain Mediterranean forest area.

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An Economic Comparison of Adaptation Strategies Towards a Drought-induced Risk of Forest Decline

Cited by 17 publications

References 43 publications

Magnitude and timing of density reduction are key for the resilience to severe drought in conifer-broadleaf mixed forests in Central Europe

Magnitude and timing of density reduction are key for the resilience to severe drought in conifer-broadleaf mixed forests in Central Europe

Economic and Production Effect of Tree Species Change as a Result of Adaptation to Climate Change

Adaptive measures for mountain Mediterranean forest ecosystem services under climate and land cover change in the Mont-Ventoux regional nature park, France

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