Evidence of the effects of fire on branching and leaf development in cerrado trees

Souza, João Paulo; Albino, Ana Lúcia S.; Prado, C. H. B. A.

doi:10.1590/0102-33062017abb0123

Cited by 8 publications

(6 citation statements)

References 32 publications

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“…Many researchers have demonstrated that the recovery of branches and leaves was very fast after disturbances. For example, trees can reach the same leaf mass fraction within one year after pruning treatment [35]: evergreens and semideciduous trees showed intense and accelerated shoot and leaf development after fire [36]. A measurement of forest greenness by satellite after the 2008 Chinese ice storm showed a fairly quick overall recovery [11], which indicated a quick leaf recovery.…”

Section: Discussionmentioning

confidence: 99%

Aboveground Biomass Allometric Models for Evergreen Broad-Leaved Forest Damaged by a Serious Ice Storm in Southern China

Halin

Zhou

et al. 2020

Forests

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A catastrophic ice storm occurred in the spring of 2008, which severely destroyed nearly 13% of China’s forests; among them, the broad-leaved forest suffered the most extensive damage. In this study, allometric models of the evergreen broad-leaved forests damaged at different recovery stages after the disaster were established to estimate the aboveground biomass of damaged trees. Plant plots were established and surveyed in damaged forests to determine species composition and diameter distribution, and finally a sample scheme was formulated that contained 47 trees from 13 species. The destructive measurements of aboveground biomass of trees selected according to the scheme were conducted in 2008, 2010, 2012 and 2016, respectively. Undamaged trees in the same region were also selected to measure the biomass in 2010. Linear regression of logarithmic transformation of the power function form was performed using Diameter at Breast Height (DBH) as predictor to develop biomass allometric models. The results showed that the ice storm caused tree aboveground biomass loss, which caused different parameters of the tree biomass models at different recovery stages. The models have a high accuracy in predicting trunk and total aboveground biomass, with high determination coefficients (R2, 0.913~0.984, mean 0.957), and have a relatively low accuracy in predicting the biomass of branches and leaves (R2, 0.703~0.892, mean 0.784). The aboveground biomass reduced by 35.0% on average due to the ice storm, and recovered to the same level of undamaged trees in the same diameter 8 years after the disturbance. The branches and leaves recovered very fast, and the biomass of these parts exceeded that of the undamaged trees, reaching the same diameter 2 years after the disaster, indicating an over compensatory growth. The trees with a smaller diameter were mostly composed of middle and late succession species, and recovered faster than other species, indicating that the ice storm may alter the forest structure and accelerate community succession. The biomass allometric models built in this study, combined with forest inventory data, can estimate forest biomass loss and recovery after disturbance, and offer an important sense of the assessment of forest damage and the formulation of forest post-disaster management strategies.

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Section: Discussionmentioning

confidence: 99%

Aboveground Biomass Allometric Models for Evergreen Broad-Leaved Forest Damaged by a Serious Ice Storm in Southern China

Halin

Zhou

et al. 2020

Forests

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“…Branches bearing buds with newly formed organs, such as in evergreen trees and semi-deciduous species X. aromatica, T. stenocarpa, S. adstringens and S. polyphyllum, are vigorously produced after heavy rains, with lower activity during the winter drought. Notwithstanding, there is a permanent source of carbon in those evergreen species by the persistent foliage and continuous production of leaves and branches (Damascos et al 2005;Damascos 2008;Souza et al 2017). Thus, evergreen and the majority of semi-deciduous trees study here are less dependent on long-term carbon storage in below-ground organs than deciduous species.…”

Section: Discussionmentioning

confidence: 87%

Bud structure and development in trees of a neotropical savanna differing by leaf persistence

et al. 2021

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The climatic seasonality affects markedly plant organs' development in the neotropical savannas. Essential understandings about bud structure and its development in deciduous, semi-deciduous and evergreen trees are unknown in Cerrado vegetation, the largest neotropical savanna. We aimed to determine the bud development, structure and the relationship between budburst and dry and wet seasons for 15 tree species distributed in leaf phenological groups. We labelled five buds in each of the five adult individuals in tree species of each phenological group at the dry season's peak in July 2016. The labelled buds were monitored every week since their opening up to branch development and leaf production in April 2017. Another group of buds was collected at the dry-wet season transition to determine the bud structure. Deciduous tree species showed preformed leaves in buds, the evergreen trees had neoformed leaves, and semi-deciduous trees had buds with preformed and neoformed leaves. Cataphylls were protecting the buds in all deciduous trees and the semi-deciduous species Eriotheca gracilipes. Budburst in the deciduous species and semi-deciduous except for Guapira noxia and Xylopia aromatica occurred at the dry season's peak. In the evergreen trees, buds developed only after the wet season start. While deciduous and evergreen tree species presented different bud structures and development, the semideciduous trees shared the bud traits with phenological groups. We captured distinct growth strategies in groups of trees according to leaf persistence and bud structural and developmental traits.

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“…In the Cerrado, vegetation suffers with reduced woody cover and formation of canopy gaps in the months following fires , as detected by the minimum NDVI values used in our analysis (0.369 and 0.458), which corresponded to post-fire months. After a few months of burning, Cerrado vegetation often exhibits regrowth (Souza et al 2017), which in turn, increases the availability of arthropods and seeds (Vasconcelos et al 2009;Diniz et al 2011), frequent items in the diet of R. mastacalis (Sousa et al 2004;.…”

Section: Discussionmentioning

confidence: 99%

Influência de fatores endógenos e exógenos na dinâmica populacional de dois pequenos mamíferos em uma área de cerrado denso na Estação Ecológica do Panga (Uberlândia/MG, Brasil)

Rossi¹

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Agradeço primeiramente à toda minha família, que possibilitou a realização desse sonho, em especial aos meus pais Eunizia e Ramilo, e minha madrinha, Alzira.À minha orientadora, professora Dra. Natália Oliveira Leiner, por ter me acolhido desde a graduação e aceitado o desafio de continuar me orientando no mestrado. Por todo o aprendizado e paciência no desenvolvimento desse trabalho.À todos integrantes atuais e passados do Laboratório de Ecologia de Mamíferos (LEMA -UFU), que auxiliaram na coleta de dados que possibilitou a realização dessa dissertação. Em especial à minha amiga Claire, que muito me ajudou e compartilhou de suas vivências e experiências.Aos meus amigos antigos e novos sou grato pela amizade de cada um e pela imensa contribuição emocional e logística, me auxiliando na coleta de dados dessa pesquisa quando ninguém mais podia. Aos professores Dr.

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Evidence of the effects of fire on branching and leaf development in cerrado trees

Cited by 8 publications

References 32 publications

Aboveground Biomass Allometric Models for Evergreen Broad-Leaved Forest Damaged by a Serious Ice Storm in Southern China

Aboveground Biomass Allometric Models for Evergreen Broad-Leaved Forest Damaged by a Serious Ice Storm in Southern China

Bud structure and development in trees of a neotropical savanna differing by leaf persistence

Influência de fatores endógenos e exógenos na dinâmica populacional de dois pequenos mamíferos em uma área de cerrado denso na Estação Ecológica do Panga (Uberlândia/MG, Brasil)

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