Costa Rica
Soil organic carbon pool under native tree plantations in the Caribbean lowlands of Costa RicaBackgroundOpen access copy available |
Nitrogen Fixing Trees for Animal Production on Acid SoilsBackgroundNitrogen-fixing trees play a crucial role in improving pasture and livestock systems on acid soils, which are prevalent in tropical regions. Acid soils often challenge agricultural productivity due to low fertility and high aluminum toxicity. Nitrogen-fixing trees, such as Erythrina poeppigiana, Cratylia argentea, and Alnus acuminata, enhance soil chemistry and fertility by adding nitrogen through organic matter and improving physical soil properties like porosity and bulk density. They are integrated into silvopastoral systems, where trees and shrubs coexist with pastures, offering multiple benefits such as soil stabilization, increased forage quality, and diversified farm outputs. Open access copy available |
Biodiversity conservation in Costa Rica: a correspondence analysis between identifi ed biodiversity hotspots (Araceae, Arecaceae, Bromeliaceae, and Scarabaeinae) and conservation priority life zonesBackgroundOpen access copy available |
Restauración ecológica de bosques tropicales en Costa Rica: efecto de varios modelos en la producción, acumulación y descomposición de hojarascaBackgroundLa deforestación ha generado la necesidad de recuperar los ciclos de nutrientes y la biodiversidad en áreas degradadas. La investigación comparó tres enfoques de restauración: plantación, islas de árboles y regeneración natural, junto con bosques secundarios jóvenes, para evaluar su eficacia en la restauración de ecosistemas. Deforestation has emphasized the need to recover nutrient cycles and biodiversity in degraded areas. The research compared three strategies—plantation, tree islands, and natural regeneration—alongside young secondary forests to assess their effectiveness in ecosystem restoration. Open access copy available |
Caracterización estructural y florística de un bosque secundario enriquecido de 15 años en la Región Tropical Húmeda de Costa RicaBackgroundEl estudio evalúa un bosque secundario enriquecido de 15 años en Costa Rica, originado en un pastizal abandonado. Los bosques secundarios son ecosistemas formados tras la eliminación de la cobertura primaria y tienen potencial económico, ambiental y de conservación de biodiversidad. Este caso analiza cómo la regeneración natural combinada con enriquecimiento puede mejorar su estructura y composición. Available with subscription or purchase |
Reflexiones sobre los sistemas silvopastorilesBackground:Los sistemas silvopastoriles (SSP) combinan árboles, pasturas, y ganado en un mismo espacio, promoviendo interacciones biológicas que maximizan el uso de la tierra. Representan una estrategia agroforestal para integrar la producción ganadera con la mitigación del cambio climático, al reducir gases de efecto invernadero y rehabilitar áreas degradadas por prácticas extensivas de baja productividad. Open access copy available |
The soil organic carbon in particle-size separates under different regrowth forest stands of north eastern Costa RicaBACKGROUND:Costa Rica, having experienced significant deforestation from 1950 to 1984, now sees a rise in secondary forests due to land abandonment and reforestation efforts. These forests vary widely in soil carbon accumulation, influenced by the previous land use intensity and the age of the forest. The paper investigates the role of secondary forests in Costa Rica in soil organic carbon (SOC) sequestration, a critical component in understanding climate change mitigation potential. Available with subscription or purchase |
The soil C pool in different agroecosystems derived from the dry tropical forest of Guanacaste, Costa RicaBACKGROUND:Seasonally dry tropical forests, constituting 42% of all tropical forests, are critically endangered, with less than 0.1% protected in Pacific Mesoamerica. The preservation of these forests is severely threatened by the invasive, highly flammable grass Hyparrhenia rufa, which has aggressively colonized the area since the 1940s. The paper focuses on examining soil carbon pools across various ecosystems derived from these forests in Guanacaste, Costa Rica, emphasizing the urgent need for comprehensive research on their soil carbon dynamics. Available with subscription or purchase |
Restauración ecológica de bosques tropicales en Costa Rica: efecto de varios modelos en la producción, acumulación y descomposición de hojarascaBackground:La deforestación altera los ciclos de nutrientes y aumenta la fuga de nutrientes del ecosistema con altos costos ambientales y sociales. No obstante, la deforestación sigue siendo intensa en la mayoría de los países tropicales, especialmente en América Latina, donde los bosques son talados y rápidamente convertidos para la agricultura. Así, las estrategias de restauración en los trópicos son indispensables considerando la gran escala de degradación y la necesidad de mantener procesos ecológicos vitales. Available with subscription or purchase |
Assisted restoration interventions drive functional recovery of tropical wet forest tree communitiesBackgroundIntegrating science and practice is one of the main goals of the U.N. Decade on Ecosystem Restoration. A variety of factors can influence the application of restoration treatments across tropical ecosystems. Deciding where to apply a restoration strategy on the spectrum between natural regeneration an active restoration planting can be challenging and there is not enough current knowledge that compares these methods. Open access copy available |
