Soil Health and Management
The Potentials of 20 Indigenous Tree Species for Soil Rehabilitation in the Atlantic Forest Region of Bahia, BrazilbackgroundThis research presents the effects of 20 native tree species planted in 1974-1975 on different soil conditions in Bahia, Brazil. Research Goals & MethodsIn pure stands of the native species (some nitrogen-fixing) as well as a nearby 25 year old secondary forest, primary forest, and mixed-species plantation, soils were evaluated for the following conditions: depth, % carbon, % nitrogen, phosphorous, potassium, calcium, magnesium, dry weight of forest floor litter, pH, and nodules. Available with subscription or purchase |
Application of Mycorrhizal Roots Improves Growth of Tropical Tree Seedlings in the Nursery: A Step Towards Reforestation with Native Species in the Andes of EcuadorbackgroundEcuador’s tropical mountain rainforests are rich in biodiversity but are facing the highest deforestation rate in South America (1.7%). Tree plantations are one method being used to restore these forests, however these plantations often use fast-growing introduced species rather than native species. To improve the success of native species in order to encourage their greater use in plantations, this study proposes inoculation of nursery seedlings with the arbuscular mycorrhizal (AM) fungi that is associated with these native species in the forest. Open access copy available |
Natural History, Seed Predation, and Germination of Prosopis juliflora Relative to a Reforestation Project in Southwestern EcuadorbackgroundThis article provides information on the natural history of Prosopis juliflora in Ecuador and describes the efforts to use this native species in reforestation of tropical dry forest in the Proyecto Eduardo Aspiazu Estrata project. Research Goals & MethodsOver 200 sacks of pods (around 15-20 kg) of seeds were collected in March-May 1994 and examined at the seed bank. Open access copy available |
Propagating Framework Tree Species to Restore Seasonally Dry Tropical Forest: Implications of Seasonal Seed Dispersal and DormancybackgroundThis paper evaluates the seed germination characteristics of native tree species selected for reforestation in Thailand and cultivated in nurseries. Open access copy available |
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 |
Manual de reforestación con especies nativasOpen access copy available |
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. Research Goals & MethodsThe species (native: Alnus acuminata, Cedrela montana, Juglans neotropica, Heliocarpus americanus, Tabebuia chrysantha, exotic: Pinus patula and Eucalyptus saligna) were planted in a block design in the different successional stages and in plots with and without above-ground weeding. Available with subscription or purchase |
Methods of Facilitating Reforestation of Tropical Degraded Land with the Native Timber Tree, Terminalia amazoniabackgroundIn tropical dry regions, like Costa Rica, it is critical to reforest degraded farms in order to reduce erosion and increase soil fertility. This paper explores the results of an 8-year long experiment in Southern Costa Rica that sought to identify ways to reforest such land economically. 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 |
The Potential for Carbon Sequestration Through Reforestation of Abandoned Tropical Agricultural and Pasture LandsbackgroundThis article reviews the field of carbon accumulation in tropical secondary forests to shed light on the ability of reforestation to encourage carbon sequestration. Available with subscription or purchase |
