Forest Plantations
Impacts of Native Trees on Tropical Soils: A Study in the Atlantic Lowlands of Costa RicabackgroundThis article describes the results of a study in Costa Rica that compared the soil fertility in a 2.5 year-old plantation of 6 native tree species, grass pasture, and 20 year-old secondary forest. Research Goals & MethodsSoil extractable Ca, Mg, K, P, Fe, Mn, Cu and Zn, the pH, exchangeable acidity, organic matter and total N were measured in three plots. Available with subscription or purchase |
Strategies for the Recovery of Degraded Ecosystems: Experiences from Latin AmericabackgroundThis paper reviews the rehabilitation potential of native species forest plantations in lowland Costa Rica, the Atlantic Forest of Bahia, Brazil, and sub-tropical Argentina. Native species can improve forest regeneration where soils are degraded and where sources of propagules are limited. While most tropical plantations are dominated by exotic species, native trees may be more appropriate because they are better adapted to the local environment, are already familiar to local farmers, and their propagules are locally available. Open access copy available |
Optimising Seedling Management: Pouteria sapota, Diospyros digyna, and Cedrela odorata in a Mexican RainforestbackgroundThis study compares the height growth of three native tree species (Pouteria sapota, Diospyros digyna, and Cedrela odorata) during the first two years after transplantation from a nursery in three plot types (primary rainforest, secondary forest, and open pasture) in Veracruz, Mexico. Research Goals & MethodsThe effects of canopy closure, leaf nutrients, initial seedling height and seed mass on the final height of the plant after two years were analyzed. Open access copy available |
Silvicultural and economic aspects of pure and mixed native tree species plantations on degraded pasturelands in humid Costa RicaBackgroundReforestation of degraded land in tropical regions provides one means of restoring ecosystems and improving rural livelihoods. Most plantations in humid tropical regions are established in pure plots using few species of high commercial value, generally exotics. This study compares growth and economic viability of native trees in pure and mixed plantations on degraded land. Available with subscription or purchase |
Sustaining Tropical Forest Resources: Reforestation of Degraded LandsbackgroundThis government report provides background material on tropical reforestation and discusses techniques to reforest degraded tropical lands. It considers species planting issues such as: native v. exotic species, monoculture v. polyculture, single purpose v. multipurpose trees, and genetic improvement and plant breeding. Open access copy available |
New Options for Land Rehabilitation and Landscape Ecology in Southeast Asia by "Rainforestation Farming"backgroundThe authors describe a methodology for reforestation called "Rainforestation Farming" developed in the Philippines in the 1990s to restore forest cover on degraded lands covered with Imperata cylindrica grass in the Visayas region Available with subscription or purchase |
Manual de Reforestación para América Tropical (Reforestation Manual for Tropical America)Este documento aporta una visión general de la reforestación a partir de muchas perspectivas diferentes. Open access copy available |
Pure and Mixed Forest Plantations with Native Species of the Dry Tropics of Costa Rica: A Comparison of Growth and ProductivitybackgroundThis research monitored the growth and survival of 13 natives species in pure and mixed-species plantations, and compared the results to measurements of T. grandis, an exotic species commonly planted in the area. Open access copy available |
Catalyzing native forest regeneration on degraded tropical landsbackgroundForest clearing, forest degradation, and the deterioration of land productivity due to inappropriate management is a major problem in the tropics. While traditionally, restoration of forest lands abandoned from human use has relied on natural forest regeneration, this paper explores the potential of plantations to catalyze forest regeneration in the tropics. Open access copy available |
Restoration of Degraded Tropical Forest LandscapesBackgroundThe rapid loss and degradation of tropical forests has been one of the defining features of the 20th century, with an estimated 350 million ha deforested and another 500 million ha (primary and secondary forest) in degraded status. There have been three major responses to this process: expanding protected areas; improving agricultural productivity on cultivated and abandoned lands; and plantation-style reforestation using a very limited number of species. These methods have proven unsuccessful in slowing the rate of deforestation or providing adequately for livelihoods. Open access copy available |
