Can native vegetation recover after slash pine cultivation in the Brazilian Savanna?

Abreu, Rodolfo Cesar Real de; Assis, Geissianny Bessão de; Frison, Sergianne; Aguirre, Alberto de Barros; Durigan, Giselda

doi:10.1016/j.foreco.2011.06.046

Cited by 39 publications

(30 citation statements)

References 41 publications

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“…The lower densities of forest species in the RC also indicate that it was at an intermediate stage of succession. In more advanced stages of succession, savanna species are progressively excluded as the canopy becomes denser (ABREU et al, 2011), leading to an overall reduction in species diversity, as observed in the PC. The higher mortality in the RC would also have contributed to the formation of gaps in the canopy, creating conditions for the establishment of savanna species (EITEN, 1972).…”

Section: Discussionmentioning

confidence: 92%

“…This similarity is probably related to the typical resprouting capacity of most Cerrado woody plant species (COUTINHO, 1990;MIRANDA et al, 1996), which would have contributed to the autochthonous recuperation of species richness in the RC. In addition, the spatial proximity between communities may have favored seed dispersal from the PC to the RC, which would have supported the colonization of the RC by forest species (ABREU et al, 2011) and contributed to the increasing similarity of the two communities.…”

Section: Discussionmentioning

confidence: 99%

“…This is probably related to the ecological plasticity of many species in relation to the variable conditions of luminosity (ABREU et al, 2011). The predominance of typical savanna species, which are generally heliophilous, was probably related to the disappearance of individuals of pioneer species, such as Tachigalli vulgaris .…”

Section: Discussionmentioning

confidence: 99%

“…During the succession process, species richness may decrease as a result of the exclusion of typical Cerrado species, which are intolerant of shade (ABREU et al, 2011), while biomass tends to increase along a gradient from more open vegetation to denser habitats, such as the cerradão (MARIMON-JUNIOR; HARIDASAN, 2005;RIBEIRO;.…”

Section: Introductionmentioning

confidence: 99%

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Resilience of savanna forest after clear-cutting in the cerrado-amazon transition zone

et al. 2015

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ABSTRACT:The dynamics of the natural process of recuperation of the structure and diversity of native vegetation following anthropogenic disturbance has been the subject of a great deal of controversy in restoration ecology research. The present study evaluates the natural regeneration of savanna forest (cerradão) 32 and 36 years after the clearcutting of the vegetation. We compared species diversity, and the structure and dynamics of the vegetation in two communities, one representing preserved cerradão (PC), and the other, the regenerating cerradão (RC), which was clearcut in 1976. Surveys were conducted in 2008 and 2012, 32 and 36 years after clear-cutting, respectively. In 2008, we demarcated 81 permanent 10 m x 10 m plots, 50 in the RC and 31 in the PC, and measured all live plants with a diameter at soil level > 5 cm. In 2012, the plots were resampled, including the original plants and all the recruits. The species were classified as specialists in savanna (SA) or forest habitat (FO), or as generalists (SA/FO). The RC presented the highest species richness and diversity, density, annual increment, and mortality rates. However, no significant differences were found between communities in the distribution of specialist or generalist species, or between years (2008 and 2012) in basal area or recruitment rates. While the species composition of the two communities is highly similar, the RC was characterized by a higher frequency of SA species, and was more similar to nearby savanna communities (cerrado sensu stricto). Trees in the RC were smaller and suffered higher rates of mortality than those in the PC, but also higher annual increments. While the RC demonstrated a high degree of resilience following clear-cutting, it was still found to be at an intermediate stage of succession, even after almost four decades, indicating that regeneration is a slow process.

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Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Resilience of savanna forest after clear-cutting in the cerrado-amazon transition zone

et al. 2015

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“…O clima da região é do tipo Cwa, segundo a classificação de Köppen, definido como clima subtropical úmido (Abreu et al, 2011).…”

Section: Localização E Caracterização Da áRea De Estudounclassified

Balanço de Carbono – Viabilidade Econômica de Dois Sistemas Agroflorestais em Viçosa, MG

et al. 2017

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RESUMOA carência de estudos sobre o balanço de carbono e viabilidade econômica em sistemas agroflorestais (SAF) motivaram este estudo. Foram avaliados um sistema agrissilvipastoril (SASP) composto por eucalipto, feijão e capim braquiária e um sistema silvipastoril (SSP) composto por eucalipto e capim braquiária, ambos aos 3 anos de idade. Para estimar a biomassa do componente arbóreo foi utilizado o método indireto e para a gramínea, o direto. As emissões de gases de efeito estufa (GEE) foram baseadas no guia de Inventários Nacionais de GEE. Carbon Balance and Economic Viability in Two Agroforestry Systems inViçosa, MG ABSTRACTThe lack of studies on carbon balance and economic viability in Agroforestry Systems (AFS) motivated this study. We evaluated an agrosilvopastoral system (SASP), composed of Eucalypt, beans and Brachiaria-grass; and a silvopastoral system (SSP), composed of Eucalypt and Brachiariagrass, both 3 years old. The tree biomass was estimated using the indirect method and the direct method was used to quantify the grass biomass. Greenhouse gas (GHG) emissions were based on the National Inventory tab of GHGs. The Net Present Value (NPV) and Internal Rate of Return (IRR) were calculated. Both systems had a positive carbon balance. The NPV in the SASP was $388.77 and the IRR was 21%. The positive results were due to revenue generated by the sale of beans. The SSP NPV was -$ 1,298.00 and the IRR of -2%, considering the 3 years old trees cutting.

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Effects of time since invasion and control actions on a coastal ecosystem invaded by non‐native pine trees

Mesacasa

Macagnan

Fiaschi

et al. 2022

Ecol Sol and Evidence

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Invasive non‐native trees cause structural and functional changes in plant communities, which tend to increase over time since invasion. Native vegetation responses after control operations provide important information for restoration. We evaluated the effects of time since invasion and of pine control on plant community structure and on functional traits in a coastal open ecosystem in southern Brazil. We compared richness, diversity, abundance and cover of woody and non‐woody native plant species, as well as species composition and community‐weighted means (CWM) based on functional traits (dispersal syndrome, fruit type, maximum height and shade tolerance) of plant communities, in four conditions: a non‐invaded area, an area where pines were controlled (managed area), an area of recent invasion and an area invaded longer ago. Woody species abundance, richness and diversity declined over time since invasion. However, while abundance recovered to the point of not differing from the non‐invaded condition in areas where pines were controlled, species diversity and richness were lower in the managed area than in the area that was never invaded. The effects of pine invasion on richness and diversity of non‐woody plants did not increase over time, but plant cover progressively diminished. Woody and non‐woody species composition varied between the four conditions. Species composition similarity was lower between conditions for non‐woody than for woody species. CWM differed between the older invasion and the other conditions, determined especially by native plant height and shade tolerance. Taller plants and more shade tolerant native species were exclusively sampled in the older invasion. Synthesis and application: Pine invasion reduced species abundance, plant cover, richness and diversity, altering the composition of plant community. The escalation of negative temporal effects of pine invasion was observed on the composition of woody and non‐woody species and on functional traits. Although pine control favoured the natural regeneration of non‐woody species, diversity of woody species in the area submitted to pine control was lower than in the non‐invaded condition. Restoration activities are therefore required to increase woody species diversity. These results provide relevant guidance for the restoration of coastal ecosystems following invasive pine control.

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Can native vegetation recover after slash pine cultivation in the Brazilian Savanna?

Cited by 39 publications

References 41 publications

Resilience of savanna forest after clear-cutting in the cerrado-amazon transition zone

Resilience of savanna forest after clear-cutting in the cerrado-amazon transition zone

Balanço de Carbono – Viabilidade Econômica de Dois Sistemas Agroflorestais em Viçosa, MG

Effects of time since invasion and control actions on a coastal ecosystem invaded by non‐native pine trees

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