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Species

Crecimiento de especies forestales nativas en la zona norte de Costa Rica (Growth of native forest species in the north area of Costa Rica)

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Antecedentes

El estudio evalúa el comportamiento y crecimiento de cinco especies nativas utilizadas en la reforestación de llanuras del trópico húmedo de Costa Rica.

Open access copy available

Productividad en plantaciones puras y mixtas de especies forestales nativas en la estación biológica La Selva, Sarapiquí, Costa Rica

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Amelioration of degraded rain forest soils by plantations of native trees

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While much has been studied about the ability of tree growth to improve degraded soils in temperate zones, less is known about the impacts of tree growth on degraded soils in tropical zones.

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Tree species effects on soil properties in experimental plantations in tropical moist forest

Background

Forest soil properties are influenced by the complex interactions of vegetation, soil type, geology, management, and climactic patterns. Tree species can differ in their long-term effects on soils. This study resamples one of the earliest replicated experimental sites at La Selva Biological Station, Costa Rica, used to examine the effects of native tropical tree species on soil properties, to examine longer term effects on soil properties.

Open access copy available

Growth in pure and mixed plantations of tree species used in reforesting rural areas of the humid region of Costa Rica, Central America

Background

Despite government incentives in Costa Rica for establishing and maintaining native tree plantations since the 1990s, farmers and small landowners often lack adequate knowledge about plantation management. Yield and rotation periods for each of the ten most common species grown in monoculture have previously been published. This paper compares productivity in monoculture and mixtures at La Selva Biological Station in the Caribbean lowlands of Costa Rica.

Open access copy available

Screening Trial of 14 Tropical Hardwoods with an Emphasis on Species Native to Costa Rica: Fourth Year Results

Background

A lack of silvicultural information on native timber species in the tropics has contributed to the propogation of fast-growing exotic tree species in reforestation efforts. The plantations evaluated at the La Selva Biological Station in Costa Rica were considered marginal lands with low input of forest maintenance, reflecting the conditions of many lands that farmers would use for reforestation.

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Promoting Biodiversity: Advances in Evaluating Native Species for Reforestation

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This article describes the design of a long-term species screening trial conducted at La Selva Biological Station in Costa Rica.

Research Goals & Methods

Growth and survivability data is presented for 84 species (17 popular exotics used for timber and 67 little-known local species with timber potential) at 3 years of age.

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A Financial Analysis of Small-Scale Tropical Reforestation with Native Species in Costa Rica

Background

This article describes the financial expenses and revenues incurred by the 15th year of a small native species plantation in Costa Rica.

research goals & methods

Forecasting models incorporate growth patterns, production costs, and wood prices to determine the net present value and internal rate of return for the project.

Open access copy available

Coffee Agroforestry Systems in Central America: I. A Review of Quantitative Information on Physiological and Ecological Processes

Background

Open access copy available

Coffee Agroforestry Systems in Central America: II. Development of a Simple Process-Based Model and Preliminary Results

Background

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Indigenous Trees in West African Forest Plantations: The Need for Domestication by Clonal Techniques

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This study evaluates native species tree plantations across West Africa by summarizing existing information on the yield of those plantations, with particular focus on the Cameroon Forest Management and Regeneration Project. It considers the potential for vegetative propagation and clonal selection to increase growth rates and marketability of native species.

Open access copy available

Changes in Plant Species Composition Within a Planted Forest in a Deciduous Agroecosystem in Ghana

Background

Early-successional tree plantations can promote regeneration of second-growth mixed-species forests. While non-native species have been studied for their role in enabling second-growth regeneration, this study surveys understories of plantations of trees native to Ghana in a post-maize site to explore the suitability of native trees for promoting second-growth regeneration.

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Effect of Taungya on Regeneration of Endemic Forest Tree Species in Nigeria: Edo State Nigeria as a Case Study

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This study aims to investigate the number of native species that can regenerate under natural conditions in a 3-year Taungya system in Edo State, Nigeria. Taungya is an agroforestry system that combines forestry practices with agriculture and agriculture-related activities.

Open access copy available

The Restoration of Degraded Forests in Ghana: A Case Study in the Offinso Forest District

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Open access copy available

The Socio-Economic Effects of Ghana's Government Afforestation Project on Beneficiary Farmers in the Dormaa District of the Brong Ahafo region of Ghana

Background

Forests play a central role in Ghana's global economy and local livelihoods, yet degradation and overharvesting continue to be an issue. In response, the Ghana government implemented an afforstation program in 2001 to restock forests and help alleviate poverty. 

Open access copy available

Involving Local Farmers in Rehabilitation of Degraded Tropical Forests: Some Lessons from Ghana

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This study is an analysis of  a community-based tree planting project in Ghana using the taungya systems with indigenous trees. The project was sponsored by the Forestry Research Institute of Ghana (FORIG), the government of Ghana, and the International Tropical Timber Organization (ITTO). The goal of the tree planting in the project was to improve forest rehabilitation as well as local livelihoods.

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Experiences of a research institute in forest restoration practices in Nigeria

Background

This paper reports on the activities championed by the Forestry Research Institute of Nigeria within its mandates particularly in the area of forest conservation and management in six ecological zones of the country to recuperate the nations’ ecological integrity.

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Modified Taungya System in Ghana: A Win–Win Practice for Forestry and Adaptation to Climate Change?

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Impact of Forest Management on Insect Abundance and Damage in a Lowland Tropical Forest in Southern Cameroon

Background

A burgeoning timber industry in Cameroon, which became the fifth largest producer of timber in the world in the 1990’s, led to unsustainably high deforestation rates and high demand for forest regeneration interventions. Research in the Mbalmayo Forest Reserve in southern Cameroon has compared different silvicultural techniques for forest regeneration including complete and partial clearance methods.

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Leaf Litter Decomposition and Mulch Performance from Mixed and Monospecific Plantations of Native Tree Species in Costa Rica

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