Latin America and Caribbean

Cloudbridge Reforestation Project

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The mission of the Cloudbridge Reforestation Project is to rebuild a deforested part of tropical cloud forest using native trees to bridge a gap between two mountainside forests.  Local people as well as tree consultants are hired to plant the native species.  

Open access copy available

Root architecture and allocation patterns of eight native tropical species with different successional status used in open-grown mixed plantations in Panama

Background

While an increasing number of native tropical trees are under study for reforestation and commercial plantations, the majority of studies on trees in the tropics have concentrated on the aboveground aspects of tree growth. This study investigates biomass allocation and root architecture of eight tropical species with different successional status.

Open access copy available

Growth of native forest species planted on abandoned pasture land in Costa Rica

Background

Reforestation programs in Costa Rica have largely utilized only four tree species. This study tests growth rates and form of eleven additional tree species native to the humid tropics, including five N-fixing species and six non-N-fixing species.

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Manual de reforestación con especies nativas

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Between and Within-Site Comparisons of Structural and Physiological Characteristics and Foliar Nutrient Content of 14 Tree Species at a Wet, Fertile Site and a Dry, Infertile Site in Panama

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This study seeks to analyze how stress resulting from different amounts of precipitation and soil nutrients affects tree growth. The study hypothesized that tree structure and physiology as well as foliar nutrient content would be significantly different between the sites, and trees at the wet, fertile sites would perform better. Secondly, the study hypothesized finding a greater variability of integrated tree growth at the drier site, as plant stress is expected to accentuate differences in performance. Lastly, it was hypothesized that leaf mass area and foliar N would predict photosynthetic capacity.

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Taking Root Reforestation

Background

Deforestation is one of the largest contributors to climate change. Based in Montreal, Canada, Taking Root works in Nicaragua to fight deforestation throught market-based approaches.

Open access copy available

Species-Rich but Distinct Arbuscular Mycorrhizal Communities in Reforestation Plots on Degraded Pastures and in Neighboring Pristine Tropical Mountain Rain Forest

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This study compares the arbuscular mycorrhizal fungi (AMF) of 4 native species saplings growing in three types of fire-degraded pasture (recently abandoned, bracken covered, and shrub covered pasture) to the AMF richness and composition of 30 adult tree species in neighboring primary forest.

Research Goals & Methods

The authors sequenced a segment of fungal 18S rDNA from the mycorrhizas; in total, 193 glomeromycotan sequences were analyzed, with 130 of them being published for the first time.

Open access copy available

Impacts of Herbicide Application and Mechanical Cleanings on Growth and Mortality of Two Timber Species in Saccharum spontaneum Grasslands of the Panama Canal Watershed

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This study evaluates the effectiveness of weed control treatments (herbicide application and mechanical cleanings) in promoting the growth and survival of the exotic tree species Tectona grandis and the native tree species Terminalia amazonia.

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Carbon Sequestration and Plant Community Dynamics Following Reforestation of Tropical Pasture

Background

Conversion of abandoned cattle pasture to secondary forest in the tropics is a potential means to increase carbon sequestration as well as to enhance local biodiversity. This study uses data from a long-term tropical reforestation project – Luquillo Experimental Forest in Puerto Rico – to estimate rates of above- and belowground carbon sequestration.

Open access copy available

Early Species Selection for Tropical Reforestation: A Consideration of Stability

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This study describes a screening of timber species planted in abandoned pasture sites to understand the effect of different site conditions on tree growth and to determine the species that grew with the highest variation.

Research Goals & Methods

The author looks at genotype environment to evaluate stability of genotypes and genotypes with the ability to perform consistently in multiple site conditions.

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