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Tree Management in the Northwestern Andean Cordillera of PeruBackgroundPeasant communities in the northwestern Andean Cordillera of Peru utilize many indigenous and introduced trees and shrubs to satisfy a variety of material needs. However, forest resources are over-harvested and over-grazed, contributing to soil erosion. This study aims to identify the major tree and shrub species in the region and understand their ecologies and usages, and to recommend priorities for reforestation in the region taking human usage into account. Available with subscription or purchase |
Analysis of the Carbon Sequestration Costs of Afforestation and Reforestation Agroforestry Practices and the Use of Cost Curves to Evaluate their Potential for Implementation of Climate Change MitigationbackgroundThis article analyzes the carbon sequestration costs of agroforestry afforestation/reforestation projects (ARPs) as part of the UN's Clean Development Mechanism by evaluating both economies of scale and opportunity costs that affect total sequestration costs. The study uses an agroforestry project called Scolel Té in Chiapas, Mexico to calculate the average net present value (ANPV) of the project in terms of carbon price and project area. Available with subscription or purchase |
Geographic Variation in Tree Growth and Wood Density of Guazuma crinita Mart. in the Peruvian AmazonbackgroundThis research addresses intra-specific variation in the native Peruvian tree species Guazuma crinita, a fast-growing pioneer species and priority timber tree used in reforestation and agroforestry systems. It also evaluates the tree growth and wood density of G. crinita varieties from 11 provenances in the Peruvian Amazon. Available with subscription or purchase |
Influence of Overstory Composition on Understory Colonization by Native Species in Plantations on a Degraded Tropical SitebackgroundThis study evaluates forest understory regeneration in a 4.5 year-old plantation in Puerto Rico. The plantations, established in 1989, were planted on abandoned pasture in mixtures or monocultures of three exotic species: Casuarina equisetifolia, Eucalyptus robusta, and Leucaena leucocephala. Available with subscription or purchase |
A Re-emerging Atlantic Forest? Urbanization, Industrialization and the Forest Transition in Santa Catarina, Southern BrazilbackgroundThe Atlantic Forest region of southern Brazil has experienced rapid urbanization and industrialization in the second half of the 20th century. Trends in other regions of the world might suggest this would lead to increased forest cover in rural areas, however a developing country such as Brazil may present a different scenario. Available with subscription or purchase |
Forest Expansion in Northwest Costa Rica: Conjuncture of the Global Market, Land-Use Intensification, and Forest ProtectionbackgroundThis article examines the land cover conversion trends in Costa Rica, a topic that is widely studied in developed coutries but less so in developing. Available with subscription or purchase |
The Fate of the Tropical Forest: Carbon or Cattle?backgroundThe Clean Development Mechanism, established by the Kyoto Protocol, includes small-scale afforestation and reforestation projects as a means for participating developed countries to receive credit for emission redcutions. Available with subscription or purchase |
Determinants for Successful Reforestation of Abandoned Pastures in the Andes: Soil Conditions and Vegetation CoverBackgroundThis article compares the growth of native and exotic species seedlings planted in abandoned pasture and among brachen ferns and shrubs in Andean Ecuador over three years. Available with subscription or purchase |
Soil compaction and topsoil removal effects on soil properties and seedling growth in Amazonian EcuadorBackgroundSoil properties affect plant growth including during germination and establishment. Topsoil loss, nutrient loss, and compaction due to industrial activity in forest may impact forest regeneration. This study reports on soil properties and seedling growth following topsoil removal in Amazonian Ecuador. Available with subscription or purchase |
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 PanamabackgroundAvailable with subscription or purchase |
Impacts of Herbicide Application and Mechanical Cleanings on Growth and Mortality of Two Timber Species in Saccharum spontaneum Grasslands of the Panama Canal WatershedbackgroundThis 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. Available with subscription or purchase |
Restoration of Pasture to Forest in Brazil's Mata Atlântica: The Roles of Herbivory, Seedling Defenses, and Plot Design in ReforestationBackgroundIn this study, seedling growth and herbivory were monitored during the first 4 years of plot development in a large-scale reforestation experiment in Brazil’s Atlantic Rainforest (Mata Atlantica). Available with subscription or purchase |
Is Tree Diversity an Important Driver for Phosphorus and Nitrogen Acquisition of a Young Tropical Plantation?backgroundThis article presents the effect of native species diversity on the nitrogen and phosphorous pools above-ground in a plantation in the Canal Zone of Panama. Available with subscription or purchase |
Reforestation of Abandoned Pastures: Silvicultural Means to Accelerate Forest Recovery and BiodiversityBackgroundDespite 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. Available with subscription or purchase |
Initial Performance and Reforestation Potential of 24 Tropical Tree Species Planted Across a Precipitation Gradient in the Republic of PanamabackgroundThe 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. Available with subscription or purchase |
Decentralized Payments for Environmental Services: The cases of Pimampiro and PROFAFOR in EcuadorbackgroundThis article describes two payment for environmental services (PES) programs in Ecuador which, unlike programs run in other countries, are run by decentralized organizations: Pimampiro municipal watershed-protection scheme and PROFAFOR carbon-sequestration programme. Available with subscription or purchase |
Tropical Forest Restoration: Tree Islands As Recruitment Foci In Degraded Lands Of HondurasBackgroundMethods to accelerate forest recovery must address a number of impediments including limits on seed dispersal and microclimactic extremes. This study evaluates the ability of tree islands to serve as recruitment foci for additional seeds in a two-year study in northern Honduras. Available with subscription or purchase |
Seed rain and seed limitation in a planted gallery forest in BrazilBackgroundSeed dispersal by wind (anemochorous) and animals, usually birds and bats (zoochorous), is an important driver of succession. This study examines seed rain in a planted gallery forest (riparian corridor) in Brazil. Available with subscription or purchase |
Isolated Trees and Grass Removal Improve Performance of Transplanted Trema micrantha (L.) Blume (Ulmaceae) Saplings in Tropical PasturesbackgroundThis research evaluates the survival and growth of saplings of Trema micrantha when transplanted into recently abandoned pastureland in southeast Mexico. Trema micrantha is a pioneer species native to Mexico with ecological and physiological properties that would make it viable for planting in open fields. Available with subscription or purchase |
Amazonian Forest Restoration: An Innovative System for Native Species Selection Based on Phenological Data and Field Performance IndicesbackgroundIn this article, data is presented from 14 years of evaluating native species from primary forests in Para State, Brazil for their potential use as reforestation trees on a bauxite mine. Available with subscription or purchase |