Available with subscription or purchase
Management of sedimentation in tropical watershedsBackgroundThe sedimentation of reservoirs is a serious problem throughout the tropics, yet most attempts to control sedimentation in large river basins have not been very successful. Reliable information on erosion rates and sources of sediments has been lacking. This paper discusses some of the limitations in estimating erosion and sedimentation and encourages development of specific sediment budgets in order to extrapolate equations and generate management procedures. Available with subscription or purchase |
Hydrological Functions of Tropical Forests: Not Seeing the Soil for the trees?backgroundThis literature review provides a summary of hydrological functions in tropical forests and includes differences in the hydrology of disturbed areas, secondary forests, and mature forests. Available with subscription or purchase |
Direct Seeding of Forest Trees in Grassland Communities of Carranglan, Luzon IslandbackgroundThis study concerns the survival of 12 native pioneer species and one exotic species when directly sown into grasslands (Themeda triandra and Imperata cylindrica grasses). They were monitored for 16 weeks . The Authors note that direct seeding studies are important because direct seeding is cheaper and faster than nursery propagation. Available with subscription or purchase |
Exploiting the Potential of Indigenous Agroforestry Trees: Parkia biglobosa and Vitellaria paradoxa in Sub-Saharan AfricabackgroundThis article reviews the agroforestry potential of two native African savanna trees, Parkia biglobosa (locust bean) and Vitellaria paradoxa (shea). Available with subscription or purchase |
Karité (Vitellaria paradoxa) and Néré (Parkia biglobosa) associated with Crops in South MalibackgroundThis study analyzes the growing conditions of agricultural crops (cotton, sorghum, and pearl millet) under the common African savanna agroforestry trees Parkia biglobosa (karité) and Vitellaria paradoxa (néré), the source of the cosmetic product shea butter. Available with subscription or purchase |
Uses, Management, and Economic Potential of Dacryodes edulis (Burseraceae) in the Humid Lowlands of CameroonbackgroundThis article discusses the economic potential of a African rainforest fruit tree, Dacryodes edulis. The fruit is locally consumed and traded, in addition to its household value for oil and medicinal bark. Available with subscription or purchase |
Effect of Reforestation using Tectona grandis on Infiltration and Soil Water RetentionBackgroundIn this study, researchers examine the effect of teak (Tectona grandis) reforestation on soil infiltration and water retention in Sri Lanka. They compare the reforested site (12 years after planting) with a corn field and an abandoned pasture dominated by Imperata cylindrica grass. Available with subscription or purchase |
Restoring dense vegetation can slow mountain erosion to near natural benchmark levelsBackgroundTropical mountain areas may undergo rapid land degradation as demographic growth and intensified agriculture cause more people to migrate to fragile ecosystems. To assess the extent of the resulting damage, an erosion rate benchmark against which changes in erosion can be evaluated is required. Benchmarks reflecting natural erosion rates are usually not provided by conventional sediment fluxes, which are often biased due to modern land use change, and also miss large, episodic events within the measuring period. Available with subscription or purchase |
Effect of Vegetation Restoration on Soil and Water Erosion and Nutrient Losses of a Severely Eroded Clayey Plinthudult in Southeastern ChinaBackgroundIn this study, researchers compare erosion from reforested and degraded sites in subtropical southeastern China. Goals & MethodsThe objective of the study was to estimate the long-term influences of reforestation on soil and water erosion and nutrient losses in regions of southeast China that are characterized by severely eroded bare land derived from Quaternary red clay. The study examined surface runoff, soil erosion, and soil nutrient content. Available with subscription or purchase |
Deforestation and Reforestation of Latin America and the Caribbean (2001–2010)backgroundThis study examines contrasting forest cover change dynamics in Latin America and the Caribbean using MODIS satellite imagery. Many studies have documented deforestation, while others report forest recovery. This study seeks to analyze these trends on a large scale and connect them to environmental and population variables. Available with subscription or purchase |
