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Environmental Services of Native Tree Plantations and Agroforestry Systems in Central America

Background

Plantations and agroforestry systems supply wood and environmental services such as carbon sequestration and recovery of biodiversity. At the time of writing (2004), Central American countries were developing systems of payments for environmental services to encourage the development of these systems.

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Growth of Euterpe edulis under forest and agroforestry in southern Brazil

Background

The shade-tolerant palm Euterpe edulis is prevalent in native forests and in reforestation of banana plantations in Brazil. However, there are no data comparing its plantation growth performance to its native forest growth. This study evaluates growth and mortality of E. edulis planted in secondary dense forest and in banana plantations, as well as their relationships with site variables.

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Influence of Distance to Forest Edges on Natural Regeneration of Abandoned Pastures: A Case Study in the Tropical Mountain Rain Forest of Southern Ecuador

background

This study evaluates the role that distance from forest edges plays in the restoration of abandoned pasture.

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Light Acclimation of Four Native Tree Species in Felling Gaps within a Tropical Mountain Rainforest

background

This article addresses the decline of Ecuadorian mountain rainforests by evaluating the success fo enrichment planting of native tree species in forest gaps to prote native tree abundance and biodiversity.

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Soil Responses to restoration of a tropical pasture in Veracruz, South-Eastern Mexico.

Background

Changes in land use and land cover may affect soil properties and processes. Conversion of forest to pasture is assumed to result in a decrease in soil nutrients. Restoration to healthy grassland or forest may lead to an increase in soil nutrients. This paper reports on a study on soil responses to restoration of a tropical pasture in Veracruz, Mexico.

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Releasing Rain Forest Succession: A Case Study in the Dicranopteris linearis Fernlands of Sri Lanka

background

This study evaluates the effectiveness of different site treatments for controlling the invasive fern Dicranopteris linearis which has arrested forest succession in areas of the Sinharaja Man and Biosphere (MAB) reserve in lowland Sri Lanka. The fernlands, which had existed in the reserve for 10-20 years before this study, are favored by forest clearance for swidden agriculture and periodic fires. 

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Role of Legumes in Release of Successionally Arrested Grasslands inthe Central Hills of Sri Lanka

Background

Many cleared and abandoned forest areas have changed to successionally arrested grasslands, shrublands, or fernlands maintained by frequent fires and high herbivore populations. Many studies have shown that herbaceous legumes can protect soil surfaces, retain soil moisture, improve soil fertility, and retard ground fires. This study evaluates whether some of these species can satisfactorily establish in these arrested grassland areas to aid in the trajectory towards reforestation. 

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Local and Regional Environmental Variation Influences the Growth of Tropical Trees in Selection Trials in the Republic of Panama

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This study evaluates the effect of varying site conditions on the basal area of 21 neotropical and 2 exotic tree species at three different sites in Panama. 

Research Goals & Methods

Seedlings were planted in 2003 in randomized blocks and measured for basal diameter, height, live crown length, and crown diameter each year from 2004 to 2006.

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The Tree Planting and Protecting Culture of Cattle Ranchers and Small-Scale Agriculturalists in Rural Panama: Opportunities for Reforestation and Land Restoration

background

This study examines the relationship between farmers and trees in the tropical dry forest in two rural communities of Panama, focusing on the uses and values that small landholders assign to local tree species, both native and exotic.

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Evaluation of Andean Alder as a Catalyst for the Recovery of Tropical Cloud Forests in Colombia

background

This study compares the species composition and structural diversity of 30-year-old alder plantations with adjacent, naturally regenerated forests of the same age. The study seeks to determine if alder plantations are an appropriate catalyst for forest regeneration for conserving biological diversity and to determine if the differences between the two forest types are maintained over time.

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