A review of the combination among global change factors in forests, shrublands and pastures of the Mediterranean Region: Beyond drought effects

Doblas‐Miranda, Enrique; Alonso, R.; Arnán, Xavier; Bermejo, V.; Brotons, Lluı́s; Heras, Jorge de las; Estiarte, Marc; Hódar, José A.; Llorens, Pilar; Lloret, Francisco; López‐Serrano, Francisco R.; Martínez‐Vilalta, Jordi; Moya, Daniel; Peñuelas, Josep; Pino, Joan; Rodrigo, Anselm; Roura‐Pascual, Núria; Valladares, Fernando; Vilà, Montserrat; Zamora, Regino; Retana, Javier

doi:10.1016/j.gloplacha.2016.11.012

Cited by 113 publications

(69 citation statements)

References 218 publications

(224 reference statements)

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“…Research on how burn severity affects soil properties is particularly relevant in the European countries of the Mediterranean Basin, because land-use changes occurring during recent decades have led to an increase in fuel amount and continuity (Pausas et al 2008;Doblas-Miranda et al 2017), thus constituting landscapes prone to large high-severity fires (San-Miguel-Ayanz et al 2016;García-Llamas et al 2019). This new fire-regime pattern could be enhanced in the current context of climate change owing to climate-driven increases in burn severity and the area affected by fire because of the drier and warmer climate expected in many regions of the world (Azpeleta et al 2014;San-Miguel-Ayanz et al 2016).…”

Section: Discussionmentioning

confidence: 99%

“…In general, these forests are adapted to natural fire regimes, recovering 5 under a wide range of fire frequencies and severities (Noss et al 2006). However, burn severity is increasing in many parts of the world because of changes in land-use and climatic conditions (Lindner et al 2008;Moreira et al 2011;Doblas-Miranda et al 2017). This is the case in the Mediterranean Basin, where there is 10 major concern about the ecological consequences of highseverity fires on soils in fire-prone pine ecosystems (Pausas et al 2008), which are the forests most affected by fire in this region (Moreira et al 2012).…”

Section: Introductionmentioning

confidence: 99%

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Impact of burn severity on soil properties in a Pinus pinaster ecosystem immediately after fire

Fernández-García

Marcos

Fernández‐Guisuraga

et al. 2019

Int. J. Wildland Fire

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We analyse the effects of burn severity on individual soil properties and soil quotients in Mediterranean fire-prone pine forests immediately after a wildfire. Burn severity was measured in the field through the substrate stratum of the Composite Burn Index and soil samples were taken 7–9 days after a wildfire occurred in a Pinus pinaster Ait. ecosystem. In each soil sample, we analysed physical (size of soil aggregates), chemical (pH, organic C, total N and available P) and biological (microbial biomass C, β-glucosidase, urease and acid phosphatase activities) properties. Size of aggregates decreased in the areas affected by high burn severity. Additionally, moderate and high severities were associated with increases in pH and available P concentration and with decreases in organic C concentration. Microbial biomass C showed similar patterns to organic C along the burn severity gradient. The enzymatic activities of phosphatase and β-glucosidase showed the highest sensitivity to burn severity, as they strongly decreased from the low-severity scenarios. Among the studied soil quotients, the C:N ratio, microbial quotient and β-glucosidase:microbial biomass C quotient decreased with burn severity. This work provides valuable information on the impact of burn severity on the functioning of sandy siliceous soils in fire-prone pine ecosystems.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of burn severity on soil properties in a Pinus pinaster ecosystem immediately after fire

Fernández-García

Marcos

Fernández‐Guisuraga

et al. 2019

Int. J. Wildland Fire

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“…These areas are prone to climate-related disturbances (López et al, 2009, Doblas-Miranda et al, 2017, stressing the need to better define adaptive treatments for increasing watershed resilience. Likewise, in these water-scarce regions, aquifer recharge and other water-related issues have been identified as environmental services that should be targeted in forest planning and management (DOGV, 2013).…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of water-oriented thinning in two semiarid forests: The redistribution of increased net rainfall into soil water, drainage and runoff

Campo

González-Sanchis

Molina

et al. 2019

Forest Ecology and Management

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Water is the key element that modulates the provision of goods and services together with global/climate stressors affecting semiarid forests. In this sense, there is a need to improve the understanding and quantification of forest and water relationships as affected by forest management. This work addresses this issue by comparing net rainfall (Pn) redistribution into different belowground hydrological processes (BHP) in two forest types after a thinning treatment: a holm oak coppice (HU) and a post-fire Aleppo pine regeneration (CAL). The relative contribution (RI) of forest structure, antecedent soil moisture (st), rainfall and meteorological conditions on the BHP was assessed through boosted regression trees models. In both sites, the RI of the forest structure itself was limited (<10%). However, st, which clearly increased significantly with thinning, received an average RI of 29%. Surface and subsurface lateral flows showed values <1% of gross rainfall (Pg) in either site and were not significantly affected by thinning. On the other hand, soil moisture and drainage were affected by the thinning treatment, although with different extent depending on the site: in the drier site (CAL), the increased Pn in the thinning was mainly allocated into increased soil water content, with very limited improvement in drainage (<10 mm/year); in contrast, in the wetter continental site of HU, drainage to deeper soil layers was the most remarkable effect of thinning (50 mm/year higher than in control), given the higher st and hence the lower soil water storage available. Thinning also improved the response of BHP during drought, making these processes more elastic and less vulnerable to climatic extremes. The results presented here complement those previously reported on rainfall partitioning in these sites and all together provide a comprehensive understanding of the short-term effect (3-4 years) of water-oriented silviculture Quercus ilex and Pinus halepensis low-biomass semiarid forests. Questions such as the long-term effects of thinning remain open for these ecosystems. SOC e g Kg-1 28.5±22.1 103.5±32.4 pH (water) 8.3±0.2 7.9±0.2 Carbonates (g g-1 dry soil) 0.34±0.15 0.24±0.10

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“…Forests are key providers of numerous ecosystem services such as water protection or carbon uptake, but it remains unclear how forests will respond to future environmental changes (Aber et al., 2001;Doblas-Miranda et al, 2017;Keenan, 2015;Lindner et al, 2014;Reyer, 2015;Schröter et al, 2005;Trumbore, Brando, & Hartmann, 2015). Altered precipitation amounts and distribution, climate warming and increased atmospheric deposition of nitrogen and sulphur causing eutrophication and/or acidification are amongst the most important global-change drivers affecting forests (Laubhann, Sterba, Reinds, & de Vries, 2009).…”

Section: Introductionmentioning

confidence: 99%

Environmental drivers interactively affect individual tree growth across temperate European forests

Maes

Perring

Vanhellemont

et al. 2018

Global Change Biology

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Forecasting the growth of tree species to future environmental changes requires a better understanding of its determinants. Tree growth is known to respond to global‐change drivers such as climate change or atmospheric deposition, as well as to local land‐use drivers such as forest management. Yet, large geographical scale studies examining interactive growth responses to multiple global‐change drivers are relatively scarce and rarely consider management effects. Here, we assessed the interactive effects of three global‐change drivers (temperature, precipitation and nitrogen deposition) on individual tree growth of three study species (Quercus robur/petraea, Fagus sylvatica and Fraxinus excelsior). We sampled trees along spatial environmental gradients across Europe and accounted for the effects of management for Quercus. We collected increment cores from 267 trees distributed over 151 plots in 19 forest regions and characterized their neighbouring environment to take into account potentially confounding factors such as tree size, competition, soil conditions and elevation. We demonstrate that growth responds interactively to global‐change drivers, with species‐specific sensitivities to the combined factors. Simultaneously high levels of precipitation and deposition benefited Fraxinus, but negatively affected Quercus’ growth, highlighting species‐specific interactive tree growth responses to combined drivers. For Fagus, a stronger growth response to higher temperatures was found when precipitation was also higher, illustrating the potential negative effects of drought stress under warming for this species. Furthermore, we show that past forest management can modulate the effects of changing temperatures on Quercus’ growth; individuals in plots with a coppicing history showed stronger growth responses to higher temperatures. Overall, our findings highlight how tree growth can be interactively determined by global‐change drivers, and how these growth responses might be modulated by past forest management. By showing future growth changes for scenarios of environmental change, we stress the importance of considering multiple drivers, including past management and their interactions, when predicting tree growth.

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A review of the combination among global change factors in forests, shrublands and pastures of the Mediterranean Region: Beyond drought effects

Cited by 113 publications

References 218 publications

Impact of burn severity on soil properties in a Pinus pinaster ecosystem immediately after fire

Impact of burn severity on soil properties in a Pinus pinaster ecosystem immediately after fire

Effectiveness of water-oriented thinning in two semiarid forests: The redistribution of increased net rainfall into soil water, drainage and runoff

Environmental drivers interactively affect individual tree growth across temperate European forests

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