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Growth characteristics of some native tree species used in silvopastoral systems in the humid lowlands of Costa Rica

Background

Degraded pastures established throughout Central America in the latter 20th C are gradually transitioning to silvopasture or secondary forest. Understanding growth characteristics of trees on these lands is important for proper management.

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Release from Root Competition Promotes Tree Seedling Survival and Growth Following Transplantation into Human-Induced Grasslands in Sri Lanka

background

This study evaluates the growth and survival of four native tree species planted as seedlings in grasslands situated in previously abandoned tea plantations.

Research Goals & Methods

Each seedling underwent one of eight different treatments based the various combinations of: with or without root competition, shoot competition, and vertebrate herbivory. Seedlings that died within the first month were replaced. Growth and survival was evaluated at 18 and 28 months.

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Farm Forestry: An Alternative to Government-Driven Reforestation in the Philippines

Background

This study reviews literature and various case studies about growing trees at the farm level by rural farmers. In the Philippines, millions of dollars have gone to employ people to plant trees as part of reforestation programs while only about 10% of those planted areas are successful. The authors assert that paying people to plant trees is unsustainable and often hindered by the lack of prompt release of funding.

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Effects of Nutrient Addition, Mulching and Planting-Hole Size on Early Performance of Dryobalanops aromatica and Shorea parvifolia Planted in Secondary Forest in Sarawak, Malaysia

background

In this study, three methods were tested for their ability to improve growth of dipterocarp seedlings planted in west Sarawak, Malaysia.

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Large-scale Ecological Restoration of Degraded Tropical Forest Lands: The Potential Role of Timber Plantations

background

This study offers suggestions for how timber plantations can be designed to yield timber and improve biodiversity on cleared and degraded lands.

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Effects of fire on the recruitment of rain forest vegetation beneath Pinus caribaea plantations, Sri Lanka

Background

Groundstory fires burn forest understories and can impact advance regeneration, contributing to conversion of forests to fire-sustained grasslands or fernlands. While plantations of fire-tolerant trees have been successfully established on these sites, managing fire in the newly developing understory remains an issue of concern.

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Enrichment Planting in a Logged-Over Tropical Mixed Deciduous Forest of Laos

background

This study evaluates enrichment planting using five native species planted in degraded (logged) forests in different arrangements.

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Especies para reforestación en Nicaragua (Species for Reforestation in Nicaragua)

Background

This manual provides information about multipurpose trees in Nicaragua.

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The Potentials of 20 Indigenous Tree Species for Soil Rehabilitation in the Atlantic Forest Region of Bahia, Brazil

background

This research presents the effects of 20 native tree species planted in 1974-1975 on different soil conditions in Bahia, Brazil.

Research Goals & Methods

In pure stands of the native species (some nitrogen-fixing) as well as a nearby 25 year old secondary forest, primary forest, and mixed-species plantation, soils were evaluated for the following conditions: depth, % carbon, % nitrogen, phosphorous, potassium, calcium, magnesium, dry weight of forest floor litter, pH, and nodules.

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Site and species selection — Changing perspectives

Background

Plantation forestry in the tropics today is characterized by increasing refinement of matching species with site and increasing emphasis on non-industrial purposes for growing trees. This perspective comments on the increased number of objectives that a tropical forester or scientist is called upon to fulfill.

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