Assessing the Suitability of Pioneer Species for Secondary Forest Restoration in Benin in the Context of Global Climate Change

Gbètoho, Alain Jaures; Aoudji, Augustin K. N.; Roxburgh, Lizanne; Ganglo, Jean Cossi

doi:10.19182/bft2017.332.a31332

Cited by 21 publications

(19 citation statements)

References 33 publications

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“…These scenarios have been developed to explore different combinations of scenario context (demographic, socioeconomic, land use, and technology) (Moss et al 2010). RCP 4.5 and RCP 8.5 have already been used for studying West African ecosystems (Ayihouenou et al 2016;Gbètoho et al 2017). These climate projections were statistically downscaled to match the bioclimatic variables using the delta method (Peterson and Nyari 2008; Ramirez-Villegas and Jarvis 2010).…”

Section: Data Collectionmentioning

confidence: 99%

Spatial distribution and impacts of climate change on Milicia excelsa in Benin, West Africa

et al. 2019

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African teak (Milicia excelsa (Welw.) C.C. Berg) is an endangered multi-use species. Understanding the impact of climate change on the distribution of this species may improve the ability to anticipate or recognize its decline or expansion and to take appropriate conservation measures if necessary. Ecological niche modeling was projected in geographical space to study the current and future distribution of M. excelsa in Bénin. MaxEnt was used to estimate the potential geographic distribution of the species under two Representative Concentration Pathways (RCP). Miroc 5 summaries and two RCP 4.5 and RCP 8.5 scenarios were used as predictor variables for projections of the geographic potential of this species. The performance of the model was assessed by the area under the curve (AUC), true skill statistics (TSS) and partial receiver operating characteristics (Partial ROC). From the results, M. excelsa was more a secondary species in the Guinean climatic zone and part of the Sudanian-Guinean and Sudanian climatic zone. The projections show a significant decrease in suitable habitats for the species from the two RCP scenarios. Only a part of the Guinean climatic zone remained suitable and few protected areas will conserve in situ M. excelsa. For the sustainable conservation of M. excelsa, it is essential to strengthen the protection of sacred forests located in the Guinean climatic zone.

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Section: Data Collectionmentioning

confidence: 99%

Spatial distribution and impacts of climate change on Milicia excelsa in Benin, West Africa

et al. 2019

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“…However, the enhanced quality caused by application of materials at nanoscale can also be used to improve fire properties in wood composites . Nanomaterials have successfully been used in many disciplines and fields of science in the few recent decades . Nanotechnology is actively and rapidly developing since the beginning of the present century .…”

Section: Introductionmentioning

confidence: 99%

Fire‐retarding properties of nanowollastonite in particleboard

et al. 2017

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Summary Effects of wollastonite nanofibers on fire‐retarding properties of particleboard were studied here. Nanowollastonite (NW) was applied at 5%, 10%, 15%, and 20% based on the dry weight of wood particles. The size range of wollastonite nanofibers was 30 to 110 nm. Two application methods of NW were used: surface application (SA) in which NW was mixed with a water‐based paint and sprayed on the specimens, and internal application (IA) in which NW was mixed with the urea‐formaldehyde resin. Density was kept constant at 0.68 g/cm3 for all treatments. Specimens of 150 × 130 × 9 mm were prepared, and fire‐retarding properties were measured using 2 apparatuses: slide fire test apparatus and fixed fire test apparatus. The obtained results indicated that most fire‐retarding properties were improved with the increase in NW content up to 15% when applied internally. More than this amount resulted in decreasing of properties that was partly due to the less wood‐chips content and partly due to the absorption of resin by the NW fibers. Surface application showed higher improving effects on the properties. It can be concluded that SA of NW is more effective in improving fire‐retarding properties of particleboard; furthermore, 10% of NW is recommended as an optimum level of consumption.

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“…Wood is a renewable material for many applications that helped mankind keep a sustainable development over centuries of civilization (Daly-Hassan et al, 2014; Fernandez et al, 2014 and 2017; Arce and Moya, 2015). Fast-growing species provide an opportunity to provide the raw materials necessary for wood industries and composite products (Behling et al, 2011;Gbetoho et al, 2017); however, the wood produced of these trees is usually of low quality and density and it is usually more susceptible to wood deteriorating bioagents (Schmidt, 2006;de Medeiros et al, 2016;Schmidt et al, 2016;Ayata et al 2017). Therefore, many modifi cation techniques were used to improve its properties (Hill, 2006).…”

Section: Uvodmentioning

confidence: 99%

Effects of Nano-Clay on Physical and Mechanical Properties of Medium-Density Fiberboards Made from Wood and Chicken-Feather Fibers and Two Types of Resins

2018

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Medium-density fi berboards (MDF) were produced, using two different resins of urea-formaldehyde (UF) and phenol-formaldehyde (PF) at 10 % and 8 % contents, respectively. In order to fi nd new source of raw material to satisfy the increasing need of composite manufacturing industry, 10 % of chicken feather was added to the furnish. Moreover, nano-clay was added to investigate its potential improving effects on MDF panel properties. Results showed that panels with PF resin demonstrated signifi cantly lower water absorption and thickness swelling values in comparison to the panels with UF resin. However, mechanical properties of panels containing UF resin were generally higher; this was partially attributed to the higher resin content. It was concluded that panels with PF resin are recommended for applications where panels may be more exposed to water and vapor. In cases where the mechanical properties are of prime importance, panels with UF resin are more preferable. NC can be recommended in panels containing UF-resin to improve the properties, while it is not recommended in panels with PF-resin. Moreover, chicken feather can be included in MDF furnish to provide part of raw materials, though its addition can have diminishing effect on the properties to some extent.

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Assessing the Suitability of Pioneer Species for Secondary Forest Restoration in Benin in the Context of Global Climate Change

Cited by 21 publications

References 33 publications

Spatial distribution and impacts of climate change on Milicia excelsa in Benin, West Africa

Spatial distribution and impacts of climate change on Milicia excelsa in Benin, West Africa

Fire‐retarding properties of nanowollastonite in particleboard

Effects of Nano-Clay on Physical and Mechanical Properties of Medium-Density Fiberboards Made from Wood and Chicken-Feather Fibers and Two Types of Resins

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