Species Characteristics

Reforestation of Abandoned Pastures: Silvicultural Means to Accelerate Forest Recovery and Biodiversity

Background

Despite the 2736 native tree species in Ecuador, the majority of forestation activities in the country are based on exotic pines and eucalypts. In this book chapter, the authors describe the reason for this neglect being the lack of knowledge on the ecology and silvicultural treatment and the lack of nurseries growing these species.

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Initial Performance and Reforestation Potential of 24 Tropical Tree Species Planted Across a Precipitation Gradient in the Republic of Panama

background

The authors of this study  planted trees from 22 native species and two exotic species to use in selection trials testing the growth and survivability of trees in plantations in three different sites.

Research Goals & Methods

The sites were chosen for their precipitation gradient from Soberania National Park (2226mm mean annual rainfall), Los Santos (1946mm rainfall), and Rio Hato (1107mm rainfall). Survival, basal diameter, height, crown diameter and wood volume index (VI) were calculated after two years of growth.

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Value and Risks of Expiring Carbon Credits from Afforestation and Reforestation Projects under the CDM

background

One of the main concerns with afforestation and reforestation being part of the Clean Development Mechanism (CDM) is the issue of liability about the length and quality of the project (the risk of the forest or plantation being harvested or otherwise destroyed). To account for the non-permanent carbon storage of afforestation and reforestation projects, Credits for Emissions Reductions (CERs) can expire.

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Effects of Above- and Below-Ground Competition of Shrubs and Grass on Calophyllum brasiliense (Camb.) Seedling Growth in Abandoned Tropical Pasture

background

This article evaluates the above and below-ground competition between grasses, shrubs, and woody seedlings in abandoned pastures in montane Costa Rica.

Research Goals & Methods

One-year-old seedlings of Calophyllum brasilense, a native early-successional tree species, were planted in patches of shrub growth and grass coverage. Seedlings were treated in one of four ways: reduction of root competition, reduction of above-ground competition, reduction of both forms of competition, and control (untreated).

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The Effect of Rabbit Herbivory on Reforestation of Abandoned Pasture in Southern Costa Rica

background

This study considers how mammalian seedling herbivory may limit forest seedling growth abandonded pasture in southern Costa Rica.

Research Goals & Methods

Trees were planted in open pasture and under remnant pasture trees of Inga edulis and Inga punctata.

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Rehabilitating Degraded Forest Land in Central Vietnam with Mixed Native Species Plantings

Background

This study considers the imepdiments to reforestation presented by grasses such as Imperata cylindrica. It specifically examined the use of Acacia as a nurse crop to overcome some of the ecological and economic impediments to reforestation of degraded areas dominated by grasses.

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Canopy development in tropical tree plantations: a comparison of species mixtures and monocultures

Background

The establishment of plantation monocultures has dominated much of the intensive forest management practiced in the humid tropics of the Americas, with most forestry research and practice concentrating on a small number of non-indigenous species. Growing interest exists in modifying these practices both by creating mixed-species plantations and by making greater use of native tree species.

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Reforestation Experiences with Dipterocarp Species on Grassland

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Enriching the Tropical Rain Forest with Native Fruit Trees: A Biological and Economic Analysis in Los Tuxtlas (Veracruz, Mexico)

background

This doctoral thesis compares the net present value of planting three native tree species in comparison with cattle pasture in Los Tuxtlas, Mexico.

Research Goals & Methods

The author evaluates two native fruit species Pouteriasapota (mamey) and Diospyrosdigyna (black sapote) and the timber species Cedrelaodorata (Spanish cedar). The author evaluates the correlation between fruit yield and diameter growth for the two fruit species.

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Performance of 45 Native Tree Species on Degraded Lands in Singapore

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This paper evaluates research on the reforestation potential of 45 native tree species in Singapore, with a specific focus on identifying species that can quickly form a closed canopy.

Research Goals & Methods

Annual growth rate and survival was calculated for saplings (total 1640) planted between 1999 and 2004 on seven different sites, 3 dry, 2 average, 2 wet.

Open access copy available
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