Soil Health and Management
Cronología de la regeneración del bosque tropical seco en Santa Rosa, Guanacaste, Costa Rica. I. Características edáficas (Chronology of tropical dry forest regeneration in Santa Rosa, Guanacaste, Costa Rica)EspañolantecedentesEl objetivo del presente estudio es caracterizar las propiedades químicas y físicas de los suelos a lo largo de una cronosecuencia de ocho fragmentos de bosque tropical estacionalmente seco en Santa Rosa, Costa Rica. Open access copy available |
Restauración de ambientes deteriorados derivados de la selva tropical húmeda: el uso de los hongos micorrizógenos arbusculares (Restoration of degraded environments derived from the tropical jungle: the use of arbuscular mycorrhizal fungi)Open access copy available |
Bwa Yo: Important Trees of HaitibackgroundThis book, published in 1996, presents important tree species in Haiti as part of a USAID effort to address environmental degradation in Haiti. The trees presented are mainly those in the agricultural landscape, providing food or fuel, although trees with cultural or ecological importance are also presented. Each tree profile provides information and photos including discussions of the species and common names, importance, taxonomy and botanical features, distribution and ecology, tree characteristics, utilization, propagation, and other findings (biomass studies, growth performance, tree improvement, seed research, and/or planting stock quality). Open access copy available |
Restoration of Tropical Forest EcosystemsBACKGROUNDThis book presents a compilation of papers presented at a symposium on "Restoration of Tropical Forest Ecosystems" that occurred in Bonn, Germany during October of 1991. The event, sponsored by Mitsubishi Corporation, addressed the reasons for tropical forest destruction, opportunities and challenges for restoration, rehabilitation and management. This book presents perspectives of authors from different countries and contexts on forestry, ecology, and nature conservation to address the need for restoration and rehabilitation of tropical forests. Open access copy available |
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 |
Performance of an Improved Fallow System in the Peruvian Amazon—Modelling ApproachbackgroundThis research compares the ecological and economic potential of an improved leguminous tree fallow (using Inga edulis) to the traditional grass fallow (dominated by Imperata brasiliensis) in central Peru. Available with subscription or purchase |
Use of the Amazonian Tree Species Inga edulis for Soil Regeneration and Weed ControlbackgroundThis article presents research on leguminous tree-based fallows using Inga edulis in Peru. Research Goals & MethodsFour treatments were compared over a period of nearly 3 years: 1) natural fallow, 2) fallow with I. edulis, 3) fallow with I. edulis combined with a cover crop of kudzu (Pueraria phaseoloides), and 4) continuous cropping of cassava. Open access copy available |
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 |
Plant Growth-Promoting Bacteria: A Potential Tool for Arid Mangrove ReforestationbackgroundMicrobes (bacteria and fungi) play a crucial role in nutrient recycling in mangrove systems, which are nutrient deficient. Microbes make nutrients, especially nitrogen and phosphorous, available to mangroves, while mangroves may improve soil conditions for microbes (for example, by oxidizing the soil). PGPB may be nitrogen fixers, phosphate solubilizers, mineral uptake enhancers, and phytopathogen controllers. 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 |
