Combining partial cutting and direct seeding to overcome regeneration failures in dune forests

Guignabert, Arthur; Augusto, Laurent; Delerue, Florian; Maugard, Francis; Gire, Céline; Magnin, Clément; Niollet, Sylvie; Gonzalez, Maya

doi:10.1016/j.foreco.2020.118466

Cited by 13 publications

(26 citation statements)

References 51 publications

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“…Black spruce colonization then proceeded downslope, with trees colonizing the frost hollows as denser forest cover reduced frost risk. Although seedling vulnerability to frost may be greater in cold‐air pools, these microclimates could alternatively protect seedlings where regional droughts and heatwaves reduce seedling survival (Calama Sainz et al, 2017; Guignabert et al, 2020). It is likely that cold‐air pooling also influences competition among seedlings by shaping the abiotic environment, but more studies are needed to understand this interplay among abiotic drivers and plant competition.…”

Section: Effects Of Cold‐air Pools On Vegetation and Ecosystemsmentioning

confidence: 99%

Cold‐air pools as microrefugia for ecosystem functions in the face of climate change

Pastore

Classen

D’Amato

et al. 2022

Ecology

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Cold-air pooling is a global phenomenon that frequently sustains low temperatures in sheltered, low-lying depressions and valleys and drives other key environmental conditions, such as soil temperature, soil moisture, vapor pressure deficit, frost frequency, and winter dynamics. Local climate patterns in areas prone to cold-air pooling are partly decoupled from regional climates and thus may be buffered from macroscale climate change. There is compelling evidence from studies across the globe that cold-air pooling impacts plant communities and species distributions, making these decoupled microclimate areas potentially important microrefugia for species under climate warming.Despite interest in the potential for cold-air pools to enable species persistence under warming, studies investigating the effects of cold-air pooling on ecosystem processes are scarce. Because local temperatures and vegetation composition are critical drivers of ecosystem processes like carbon cycling and storage, cold-air pooling may also act to preserve ecosystem functions. We review research exploring the ecological impacts of cold-air pooling with a focus on vegetation, and then present a new conceptual framework in which cold-air pooling creates feedbacks between species and ecosystem properties that generate unique hotspots for carbon accrual in some systems relative to areas more vulnerable to regional climate change impacts. Finally, we describe key steps to motivate future research investigating the potential for cold-air pools to serve as microrefugia for ecosystem functions under climate change.

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Section: Effects Of Cold‐air Pools On Vegetation and Ecosystemsmentioning

confidence: 99%

Cold‐air pools as microrefugia for ecosystem functions in the face of climate change

Pastore

Classen

D’Amato

et al. 2022

Ecology

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“…Trees with larger dimensions produce higher cone yields. Trees with larger dimensions tend to be in the upper layer of the canopy, are more vigorous and the light crow area is larger, all of which contribute to the increase of cone production [43,94]. The reduction of density through thinning, reducing competition, and promoting the increase of crown area, especially the outer one where flowering and fruiting occur, increases fruit yield [43,94].…”

Section: Conifers -Recent Advancesmentioning

confidence: 99%

“…Cone full development needs 2 years to be achieved [2] and climate, especially precipitation, determines the number of mature cones per year [43,95]. For maritime pines stands the seed production per year is enough to regenerate the stands, in spite of its interannual variability [94,96]. Its seeds are mainly wind dispersed; thus, wind direction and intensity are key factors in its dispersal, which occurs in the summer, from June to August [2].…”

Section: Conifers -Recent Advancesmentioning

confidence: 99%

“…Germination is related to seed germination rate and predation both before and after dispersal. Maritime pine germination occurs either in spring or autumn [2] and it is dependent on nutrient availability as the seed have few reserves; water, the increase in water stress reduces the germination and survival rates; and light environment, as germination and early development of seedlings is promoted by semi-shade environments that reduce light intensity and soil temperature, and increase soil moisture [78,94,98]. Guignabert et al [94] mentioned that drought in summer was the primary cause of death in seedlings, mainly due to the increase of the deficit in vapor pressure and transpiration of seedlings.…”

Section: Conifers -Recent Advancesmentioning

confidence: 99%

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Maritime Pine, Its Biological and Silvicultural Traits for the Basis of Natural Resources: An Overview

Fonseca¹,

Gonçalves²,

Lousada³

2022

Conifers - Recent Advances

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Maritime pine (Pinus pinaster Aiton) is a forest tree species with a high representation in southwestern European countries, in particular Portugal, Spain, and France. The species traits and their flexibility and plasticity are of importance both for timber and to the sustainability of the forest systems. Extensive research has been made on the maritime pine systems and productions. The aim of this study is to review the state-of-the art on the knowledge of the species, their forest systems, and their productions, to identify vulnerabilities and to summarize tools to help its management. The specific objectives of this review are: i) characterizing maritime pine, its distribution, genetic material and provenances, the biotic and abiotic disturbances, the diversity and sustainability of its forest systems; (ii) its management, encompassing the silvicultural systems and practices; (iii) to list existing growth models, simulators and decision support systems; and (iv) present information on wood technology, including sylvotechnology, wood properties, and their use.

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“…When implementing the forest restoration method, including group of site preparation operations [53], group of FRM preparation operations , group of seeding [47,54,55] or planting [56,57] on site, it additionally includes group of monitoring operations [58,59]. Alternative rapid analysis [16,31] and encapsulation [60] operations carried out in field conditions using mobile equipment [26,[49][50][51] are additionally introduced into a group of FRM preparation operations.…”

Section: Third Applicationmentioning

confidence: 99%

Correlation between the Spectrometric Parameters of Coniferous Seeds and the Molecular Indicators of Seedlings: Is It Possible to Apply It in Practice?

Novikov

Ivetić

Daneshvar

et al. 2020

The 1st International Electronic Conference on Forests—Forests for a Better Future: Sustainability, Innovation, Inter

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Coniferous seeds as an integral part of Forest Reproductive Material (FRM) are a fairly valuable product that is transported by trade operations over long distances. Seed quality determines the rate of reforestation. Improving quality indicators and increasing the competitiveness of forest seeds is one of the promising directions of a few country’s forestry development strategy and an opportunity to integrate into global reforestation initiatives. Based on the direct interaction of biophysical studies of seed spectrometric parameters, implementation of their genotype in different environmental conditions, biometric studies of seedling growth and development and genetic conditioning of these components, it is possible to develop and test a comprehensive concept for obtaining FRM with high quality indicators. What practical application can be expected? First, it is possible to study genetic variability among the seeds of the studied species, using molecular DNA markers. This would help obtain a comprehensive and categorical classification of samples that illustrates the genetic similarity and relationship structure relative to the desired characteristics of seedlings and seeds with high viability rates. Genetic and spectrometric data could be further combined to build a consensus tree of genetic similarity. Second, algorithms could be developed for integrating these parameters in the FRM-Library database to synchronize the quality indicators of forest reproduction material, with information processing devices of optoelectronic graders and phenoseeders. Third, methods and algorithms could be developed for optimal selection of technology for coniferous seeds grading of different breeding values. These would be developed based on data extracted from the FRM-Library database for the production of forest reproductive material, considering various goals and frontier methods of contemporary forest landscape restoration.

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Combining partial cutting and direct seeding to overcome regeneration failures in dune forests

Cited by 13 publications

References 51 publications

Cold‐air pools as microrefugia for ecosystem functions in the face of climate change

Cold‐air pools as microrefugia for ecosystem functions in the face of climate change

Maritime Pine, Its Biological and Silvicultural Traits for the Basis of Natural Resources: An Overview

Correlation between the Spectrometric Parameters of Coniferous Seeds and the Molecular Indicators of Seedlings: Is It Possible to Apply It in Practice?

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