Enrichment of big-leaf mahogany (Swietenia macrophylla King) in logging gaps in Bolivia: The effects of planting method and silvicultural treatments on long-term seedling survival and growth

Navarro-Cerrillo, Rafael M.; Griffith, Daniel M.; Ramírez‐Soria, Maria José; Pariona, William; Golicher, Duncan; Palacios, Guillermo

doi:10.1016/j.foreco.2011.08.020

Cited by 37 publications

(17 citation statements)

References 34 publications

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“…Although seedlings growing in the open were more likely to suffer shoot tip damage than more shaded individuals, which is a pattern reported in the literature [6,35,36], the fastest growing seedlings were also in the open, regardless of the status of their shoot tips. We believe that this counterintuitive finding means that the advantages to mahogany seedlings of high light fully compensates for the shoot tip losses to which they are especially susceptible under those growth-favoring conditions [6,[34][35][36].…”

Section: Planted Seedling Growth In Relation To Shade Shoot Tip Damasupporting

confidence: 73%

“…The small effect of shoot tip damage on the observed height:diameter ratios of planted mahogany seedlings ( Figure S2) at least partially justifies the reporting of only height data for seedlings up to 3-4 m tall [6]. Although seedlings growing in the open were more likely to suffer shoot tip damage than more shaded individuals, which is a pattern reported in the literature [6,35,36], the fastest growing seedlings were also in the open, regardless of the status of their shoot tips.…”

Section: Planted Seedling Growth In Relation To Shade Shoot Tip Damamentioning

confidence: 70%

“…The fundamental silvicultural problem is often the scarcity of advanced regeneration (i.e., seedlings, saplings, and poles) of commercial species, especially those that are light-demanding [3]. One way to overcome this limitation is to enrich the natural regeneration by direct seeding or planting nursery-grown seedlings in felling gaps, adjacent to skid trails, or along cleared lines [4][5][6][7]. Enrichment planting is also hoped to render forest management financially attractive and thus reduce deforestation for other land uses [8].…”

Section: Introductionmentioning

confidence: 99%

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Remnant Trees in Enrichment Planted Gaps in Quintana Roo, Mexico: Reasons for Retention and Effects on Seedlings

Navarro-Martínez

Palmas

Ellis

et al. 2017

Forests

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Natural forest management in the tropics is often impeded by scarcity of advanced regeneration of commercial species. To supplement natural regeneration in a forest managed by a community in the Selva Maya of Mexico, nursery-grown Swietenia macrophylla seedlings were planted in multiple-tree felling gaps, known as bosquetes. Remnant trees are often left standing in gaps for cultural and economic reasons or due to their official protected status. We focus on these purposefully retained trees and their impacts on planted seedlings. Sampled bosquetes were 400-1800 m 2 , of which remnant trees covered a mean of 29%. Seedling height growth rates over the first 18 months after out-planting more than doubled with increased canopy openness from 0.09 m year −1 under medium cover to 0.22 m year −1 in full sun. Liana infestations and shoot tip damage were most frequent on seedlings in the open, but, contrary to our expectations, height growth rates were 0.14 m year −1 faster for liana-infested seedlings than non-infested and did not differ between damaged and undamaged seedlings. Apparently the more rapid height growth of well-illuminated seedlings more than compensated for the effects of lianas or shoot tip damage. Despite the abundance of remnant trees and their negative effects on seedling growth, enrichment planting in bosquetes has potential for community-based natural forest management in the tropics in supplementing natural regeneration of commercial species. One obvious recommendation is to leave fewer remnant trees, especially those of commercial species that are non-merchantable due to stem defects and trees retained for no apparent reason, which together constituted half of the remnant crown cover in the sampled bosquetes. Finally, given the rapid growth of lianas and understory palms in large canopy gaps, at least the most vigorous of the planted seedlings should be tended for at least two years.

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Section: Planted Seedling Growth In Relation To Shade Shoot Tip Damasupporting

confidence: 73%

Section: Planted Seedling Growth In Relation To Shade Shoot Tip Damamentioning

confidence: 70%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Remnant Trees in Enrichment Planted Gaps in Quintana Roo, Mexico: Reasons for Retention and Effects on Seedlings

Navarro-Martínez

Palmas

Ellis

et al. 2017

Forests

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“…As many SBA sites are far from roads, sowing seed has obvious advantages compared to planting seedlings. Additionally, under similar growing conditions, mahogany seedlings from seeds are about the same height as planted seedlings in only two years (Navarro-Cerrillo et al, 2011).…”

Section: Introductionmentioning

confidence: 96%

Survival of Swietenia Macrophylla Seeds Sown in Slash-and-Burn Fields in Quintana Roo, Mexico

Negreros-Castillo¹,

Martínez-Salazar²,

Kellner³

et al. 2017

Bois for. trop.

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“…This type of forest regeneration is used to produce forests for environment restoration (CAMPOE et al 2010;CAMPOE et al 2014), enrichment of natural forests (KETTLE 2009;NAVARRO-CERRILLO et al 2011;SCHWARTZ et al 2013) or to constitute highly productive monocultural plantations (DESROCHERS; TREMBLAY 2009). The costs of artificial regeneration are associated with site slope, access to site, human labor cost, seedling availability and the need for post-planting competition control (BIRCH et al 2010;CAMPOE et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Using Bare-Root and Rootstock Seedlings From Natural Regeneration of Cedrela Fissilis

Schröder

Zimmermann

Pereira

et al. 2016

CERNE

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ABSTRACT:The success of forest creation relies on seedling availability and quality. The aim of this research is to assess the possible use of rootstock and bare-root seedlings of Cedrela fissilis obtained from natural regeneration for direct field planting. We used Generalized Linear models to assess survival and Hierarchical Models to assess height growth over one year after planting. Initial root-collar diameter (RCD) and treatment (rootstock or bare-root) affected survival and growth. Rootstock and larger seedlings presented higher levels of survival and growth. Higher seedling quality in the rootstock treatment is due to higher water stress tolerance. Rootstock seedlings with more than 1 cm of initial RCD had over 80% of survival probability, while small bare-root seedlings had mean survival probability as low as 20%. Rootstock seedlings grew as much as fourfold more than bare-root. Using natural regeneration of C. fissilis as a source of rootstock seedlings may be a cheap alternative for forest restoration and enrichment planting projects. UTILIZAÇÃO DE MUDAS DE RAIZ NUA E MUDAS DE TOCO PROVENIENTES DA REGENERAÇÃO NATURAL DE CEDRELA FISSILIS RESUMO:O sucesso da implantação de florestas depende da disponibilidade e da qualidade de mudas. O objetivo desta pesquisa é avaliar a possibilidade do uso de mudas de toco e mudas de raiz nua de Cedrela fissilis obtidas de regeneração natural para plantio à campo. Nós usamos Modelos Lineares Generalizados para avaliar sobrevivência e Modelos Hierárquicos para avaliar crescimento em altura durante um ano após o plantio. O diâmetro do colo (DC) inicial e tratamento (mudas de raiz nua ou de toco) afetaram a sobrevivência e o crescimento. Mudas de toco e mudas com maior DC inicial apresentaram maiores probabilidades de sobrevivência e maior crescimento. A melhor qualidade de mudas no tratamento de mudas de toco é devido à maior tolerância ao stress hídrico. Mudas de toco com DC inicial maior que 1 cm tiveram probabilidade de sobrevivência acima de 80%, enquanto mudas de raiz nua pequenas tiveram probabilidade de sobrevivência média de 20%. As mudas de toco cresceram quatro vezes mais que mudas de raiz nua. A utilização da regeneração natural de C. fissilis como fonte de mudas de toco pode ser uma alternativa barata para projetos de restauração florestal e plantios de enriquecimento.

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Enrichment of big-leaf mahogany (Swietenia macrophylla King) in logging gaps in Bolivia: The effects of planting method and silvicultural treatments on long-term seedling survival and growth

Cited by 37 publications

References 34 publications

Remnant Trees in Enrichment Planted Gaps in Quintana Roo, Mexico: Reasons for Retention and Effects on Seedlings

Remnant Trees in Enrichment Planted Gaps in Quintana Roo, Mexico: Reasons for Retention and Effects on Seedlings

Survival of Swietenia Macrophylla Seeds Sown in Slash-and-Burn Fields in Quintana Roo, Mexico

Using Bare-Root and Rootstock Seedlings From Natural Regeneration of Cedrela Fissilis

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