Assisted Natural Regeneration
Evaluating alder-endophyte (Alnus acuminata-Frankia-Mycorrhizae) interactionsBackgroundThe study examines the interactions between Alnus acuminata (a nitrogen-fixing tree), Frankia (a nitrogen-fixing actinomycete), and vesicular-arbuscular mycorrhizae (VAM), specifically Glomus intra-radices. These symbiotic relationships are significant in upland areas of Costa Rica, Colombia, and Venezuela, where A. acuminata grows alongside pastures. Frankia forms root nodules that fix atmospheric nitrogen, while VAM enhances phosphorus uptake, crucial for plant growth in nutrient-poor soils. The study aims to understand the effects of these interactions on nitrogen fixation and seedling development under varying phosphorus levels. Available with subscription or purchase |
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 |
Effect of Tree Shelters and Regeneration Method on Survival and Growth of Cork Oak Plantations in the Maamora Forest, MoroccoBackgroundOpen access copy available |
Monitoring of large-scale forest restoration: Evidence of vegetation recovery and reversing chronic ecosystem degradation in the mountain region of PakistanBACKGROUND:Global forest area has decreased by 4.2% over the past three decades, highlighting the urgent need for effective restoration efforts. In response, Pakistan launched the Billion Tree Tsunami Afforestation Program (BTAP) in 2014 to restore depleted forest ecosystems in Khyber Pakhtunkhwa Province through extensive afforestation and community involvement. This study evaluates the success of BTAP in reversing forest degradation by analyzing satellite imagery and vegetation growth trends from 2014 to 2021. Available with subscription or purchase |
The potential of secondary forests to restore biodiversity of the lost forests in semi-deciduous West AfricaBACKGROUND:The human population in West Africa has increased considerably over the past four decades, leading to a high demand for food. This has led to the conversion of vast forest lands to agricultural lands in the region. Degraded forest landscapes have the capacity to regain fertility and naturally regenerate, resulting in the widespread spread of secondary forests in West Africa. Despite the significant presence of secondary forests in the region, there is rare knowledge about forest successional stages and general dynamics. Open access copy available |
Active restoration accelerates the carbon recovery of human-modified tropical forestsBackground:More than half of all tropical forests are degraded by human impacts, leaving them threatened with conversion to agricultural plantations and risking substantial biodiversity and carbon losses. Restoration could accelerate recovery of aboveground carbon density (ACD), but adoption of restoration is constrained by cost and uncertainties over effectiveness. Therefore, is necessary to understand the economic feasibility of restoration treatments in the context of global carbon pricing and the Paris climate agreement. Available with subscription or purchase |
Direct seeded and colonizing species guarantee successful early restoration of South Amazon forestsBackgroundSouth Amazon forests have been highly deforested, including the legally protected riparian forests. Direct seeding is a low cost method, easy-to-implement at large scale. The authors emphasize the imperative to reduce the costs and enhance the outcomes of restoration efforts, which have become mainstream solutions in countering biodiversity loss and climate change around the world. Available with subscription or purchase |
Tropical Rainforest Restoration Plantations Are Slow to Restore the Soil Biological and Organic Carbon Characteristics of Old Growth RainforestBackground:With widespread deforestation and land conversion posing significant threats to biodiversity and carbon sequestration, there is an urgent need to comprehend the intricate relationship between land use change, soil microbial communities, and soil organic carbon dynamics in tropical rainforest ecosystems. Open access copy available |
Survival and Early Growth of 51 Tropical Tree Species in Areas Degraded by Artisanal Gold Mining in the Peruvian AmazonBackground:Artisanal and small-scale gold mining has dramatically changed the landscape of tropical ecosystems, completely removing the soil and vegetation and polluting it with mercury disposals. In order to recover these degraded spaces, reforestation projects need to enhance their knowledge of restoration species growth and survival rates under different site conditions, as well as their fertilization needs. Goals:The authors of this study aim to (1) test 51 species with potential for ecological restoration and/or forest rehabilitation; (2) assess the potential for biochar amendments for use in reforestation efforts; and (3) explore species performance regarding their contrasting wood density traits. Available with subscription or purchase |
