Flammability of some companion species in cork oak (Quercus suber L.) forests

Dehane, Belkheir; Hernando, Carmen; Guijarro, Mercedes; Madrigal, Javier

doi:10.1007/s13595-017-0659-5

Cited by 20 publications

(15 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The variation in plant flammability evaluated at fine fuel level (leaves, distal twigs, and litter) in relation to leaf morphology or chemical composition (i.e., lignin, terpenoids, and mineral plant contents) has been investigated for various species (e.g., Alessio et al, 2008a , b ; De Lillis et al, 2009 ; Courty et al, 2012 ; Ganteaume et al, 2013 ; Cornwell et al, 2015 ; Pausas et al, 2016 ; Dehane et al, 2017 ). However, in natural systems, fuels often consist of a mixture of materials from various species.…”

Section: Introductionmentioning

confidence: 99%

“…Many studies have focused on characterizing the flammability of live foliage and litter of single species by comparing or classifying them (e.g., Dibble et al, 2007 ; Alessio et al, 2008a ; Hachmi et al, 2011 ; Madrigal et al, 2011 ; Ganteaume et al, 2013 ; Possell and Bell, 2013 ; Santana and Marrs, 2014 ; Grootemaat et al, 2015 ; Molina et al, 2017 ; Dehane et al, 2017 ). Fewer studies have aimed to measure, in laboratory studies, the non-additive effects on the flammability of litter mixtures ( Ormeño et al, 2009 ; Curt et al, 2011 ; de Magalhães and Schwilk, 2012 ; van Altena et al, 2012 ).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Flammability of Two Mediterranean Mixed Forests: Study of the Non-additive Effect of Fuel Mixtures in Laboratory

Rocca

Danti

Hernando³

et al. 2018

Front. Plant Sci.

Self Cite

View full text Add to dashboard Cite

In the Mediterranean region, wildfires are a major disturbance, determined by ecosystem and forest species characteristics. Both the flammability and resistance to fire of a mixed forest may vary from those of the individual species. Two mixed Mediterranean woodlands, a Cupressus sempervirens and Quercus ilex stand in Italy; and a Juniperus thurifera and Quercus faginea stand in Spain were investigated. Laboratory flammability tests were conducted on live foliage, litter samples and on litter beds from individual and mixed species to evaluate: (i) the flammability traits of the mixtures of live foliage and litter samples; (ii) whether the flammability of the two-species mixtures are non-additive, i.e., differ from expected flammability based on arithmetic sum of the single effects of each components species in monospecific fuel; (iii) the ignition success and initial fire propagation in litter beds. Flammability tests were also conducted on bark samples to estimate the resistance of the tree species to fire. The ignitibility of live foliage was lower and the combustibility was higher in Cupressaceae than in Quercus. Non-additive effects were observed in some flammability components of live foliage and litter, especially in the mixtures of C. sempervirens and Q. ilex. Ignitability and combustibility were higher and lower than expected, respectively, and tended to be driven by Quercus), while the consumability was lowered more than expected by both Cupressaceae. The ignition success in the litter beds was low, especially for the presence of Cupressaceae that increase the bulk density of the mixtures. Cupressaceae, which have a thinner bark, suffered more damage to the cambium after shorter exposure to the heat source than Quercus species. In all the species studied, time to reach lethal temperatures in the cambium was dependent on thickness rather than on flammability of the bark. The study findings revealed that tree species may influence flammability of mixed fuels disproportionately to their load. The studied species showed to exert a contrasted effect on flammability of the mixtures, increasing ignitability and decreasing combustibility and consumability well out of their proportion in the mixture. This may potentially influence fire dynamics in mixed forests.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Flammability of Two Mediterranean Mixed Forests: Study of the Non-additive Effect of Fuel Mixtures in Laboratory

Rocca

Danti

Hernando³

et al. 2018

Front. Plant Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Reineke's self-thinning rules were used to measure the relative density, and fully stock stands with relative density greater than or equal to 0.7 were reported (Das & Singh, 2016, Ramananantoandro et al, 2016Dehane et al, 2017). Tree growth increased the competition for resources such as solar radiation, water, and nutrients.…”

Section: Resultsmentioning

confidence: 99%

Application of stand density indices for Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) plantation management

Zhang

et al. 2018

Forestry Studies

View full text Add to dashboard Cite

The most important issues in Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) management are the quantitative determination of stand density and the selection of appropriate density. Different stand density index models have advantages for special tree species, and this study aimed to estimate the carrying capacity of planted stands of Chinese fir and to select simple and reliable stand density indexes. Based on special experiment of different initial density, the maximum carrying capacity was estimated using Reineke’s self-thinning rule, Nilson’s sparsity theory, Beekhuis’s relative-spacing hypothesis, Zhang’s nutrient-competition rule, Curtis’s maximum stand basal area and Hui’s crowding degree based on mean tree distance. The restricted maximum likelihood method (REML) implemented with ‘nlme’ package in R software was used to refine the parameters of thinning age in Richard’s growth model. The results showed that stand density index models can describe the trends of stand density in response to tree growth: the higher the plantation initial density, the earlier age and stronger self-thinning capacity of stands. Reineke’s SDI and Zhang’s Z model are the most stable and suitable to estimate changes in the density of Chinese fir plantations, competition intensification, and the thinning age. The RD model can also be used, except at low Chinese fir densities. K, which can be affected by the mean crown width of trees, directly reflects the forest area of photosynthesis; this index is easy and simple to apply, but more research is needed to optimize the equation to evaluate whether a forest requires management and to determine the appropriate time for the first thinning and its intensity.

show abstract

“…Entretanto, para atingir o ponto de letalidade do câmbio vascular, estudos realizados para avaliar o nível de proteção térmica da casca em diferentes espécies: Soares e Batista (2007), trabalhando com conífera (Pinus caribaea var. hondurensis) e folhosa (Sclerolobium paniculatum); Coneglian et al, (2014), trabalhando com Acacia mangium e Dehane et al (2017), trabalhando com Quercus suber, indicaram como 60° C a temperatura letal do câmbio, em razão da exposição do tecido protetor.…”

Section: Introductionunclassified

AVALIAÇÃO DO DETRIMENTO CAUSADO POR INCÊNDIO EM PLANTIO DE Pinus caribaea var. hondurensis, EM IPAMERI-GO

Silva¹,

Mariano²,

Souza³

et al. 2019

Agrarian

View full text Add to dashboard Cite

RESUMO Os incêndios florestais estão entre os principais fatores ameaçadores às florestas e sua produção, com potencial de destruição total do plantio. Para se conhecer os efeitos do fogo em povoamento florestal, o propósito deste estudo foi avaliar o detrimento ocorrido no plantio de Pinus caribaea var. hondurensis após a ocorrência de incêndio. Em relação a determinação do nível de queima, foram considerados quatro níveis de queima, da seguinte forma: Nível de Queima I: Incêndio superficial, sem crestamento de forma letal nas copas; Nível de Queima II: Incêndio também de forma superficial, mas, com crestamento parcial das copas; Nível de Queima III: As copas são parcialmente consumidas pelas chamas e Nível de Queima IV, onde ocorre o consumo total das copas pelas chamas, com letalidade do câmbio. As intensidades nos níveis de queima foram classificadas como altas. Os resultados indicaram influência das condições climáticas e idade dos indivíduos para o desenvolvimento do fogo. O conhecimento dos parâmetros de intensidade do fogo permitiu avaliar os danos provocados e possibilitaram a elaboração de técnicas de silvicultura preventiva, com ações mitigatórias do estabelecimento, desenvolvimento e efeitos de incêndios em povoamento florestal. PALAVRAS-CHAVE: Altura de crestamento, Danos de fogo, nível de queima.

show abstract

Flammability of some companion species in cork oak (Quercus suber L.) forests

Cited by 20 publications

References 50 publications

Flammability of Two Mediterranean Mixed Forests: Study of the Non-additive Effect of Fuel Mixtures in Laboratory

Flammability of Two Mediterranean Mixed Forests: Study of the Non-additive Effect of Fuel Mixtures in Laboratory

Application of stand density indices for Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) plantation management

AVALIAÇÃO DO DETRIMENTO CAUSADO POR INCÊNDIO EM PLANTIO DE Pinus caribaea var. hondurensis, EM IPAMERI-GO

Contact Info

Product

Resources

About