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Showing 1 to 20 of 28 for “"water erosion"”.
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Uso do modelo WEPP (Water Erosion Prediction Project) modificado para estimar taxas de erosão em estradas florestais
Este trabalho teve como objetivo geral determinar o volume total de água escoada e a produção de sedimentos provenientes de segmentos de estradas florestais submetidas às condições de chuva natural e, com esses resultados, validar o modelo WEPP por meio de comparações entre dados observados e dados …
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Assessment of Land Use Suitability Based on Water Erosion Susceptibility in Medium-Sized Urban Areas of the Metropolitan Region of Santiago, Central Chile
… territory. Given Chile's variety of landscapes, water erosion, and mass movement, and rapid expansion of its medium-sized cities, straightforward techniques for assessment of land use suitability are essential. Through evaluation of water erosion susceptibility, it is possible to efficiently …
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An ecohydrological impact assessment in urban areas
… and causes the problem of accelerated soil water erosion on streets and building grounds. Accelerated soil water erosion is a serious environmental problem in cities as it gives rise to the contamination of aquatic bodies, reduction of ground water recharge and increase in land degradation, …
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Soil erosion and land degradation in the Swartland and Sandveld, Western Cape province, South Africa : a re-evaluation
… making this area vulnerable to varying erosion rates. Land use in the Swartland and Sandveld is mainly agricultural. Soil erosion is driven by the force of wind and or water. Sheet flow is what is considered as unconstrained water erosion together with rainsplash, while piping, rill and …
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Tillage Effects on Soil Properties and Crop Production in Southern Illinois
… the NT system whereas the NT system had better water (erosion resistance) and nutrient relations rating than the MP system. The MP and the CP systems had water relation rating of 0.25 and 0.21 than the NT system (0.60) showing that residue on soil surface is important for protection of soil …
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Preconditional factors affecting the adoption of conservation tillage practices for Elgin, Middlesex and Oxford counties (Ontario).
… cropping pattern for the farm, observation of water erosion and sources of conservation information were all found to be positively related to adoption rates. Nevertheless, considerable variation remains unexplained in the dependent variable. This suggests that additional variables should be …
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Ecological restoration of lead/zinc/copper mine tailings: Phytomanagement and amendment strategies to enhance substrate functionality and biomass production
… for decades and highly susceptible to wind and water erosion. Phytostabilization is a cost-effective and ecologically productive remediation approach; however, tailings revegetation is generally challenging and must often be assisted with appropriate soil amendments. Amendments applied …
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Assessment of hydro-physical properties of some crusting soils in four different soil form as revealed by micro-focus x-ray computed tomography in Limpopo Province, South Africa
… by regular pores that are susceptible to water erosion. Moreover, soil pores inform of mesopores, micropores, and macro pores were recorded using 3D images acquired .By visualizing hydro physical properties using images in 2D and 3D, it was possible to visualize arrangement of aggregates …
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Efficacy of operational stream crossing best management practices on truck roads and skid trails in the Mountains, Piedmont, and Coastal Plain of Virginia
… by individual states in response to the Clean Water Act in order to protect water quality during and after timber harvests. Our research goals are to compare BMP implementation at stream crossings by region and road type in Virginia and to quantify effectiveness of BMPs by developing …
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Growing crops for biofuel and forage while conserving soil and water
… were to: a) assess the impacts of growing WSG on water storage, soil physical and hydraulic properties, soil organic carbon (SOC) dynamics, and water and wind erosion as compared with row crops, b) assess the impacts of growing WSG on biomass and forage production and quality and c) determine the …
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Sediment Delivery from Reopened Forest Roads at Stream Crossings in the Virginia Piedmont Physiographic Region, USA
Efforts to control surface runoff and erosion from forest roads at stream crossings are critical for the protection of aquatic ecosystems in forests. In this research, annual and event-based sediment delivery rates were estimated for reopened legacy roads at forest stream crossings in the Virginia …
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Evaluating Watershed and Stream-Channel Drivers of In-Stream Turbidity in Virginia and North Carolina
… has been a long-standing problem in the field of water resource management. Many different watershed equations and models have been developed such as the Universal Soil Loss Equation (USLE), the Geo-spatial interface for the Water Erosion Prediction Program (GeoWEPP) and many more, however, these …
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Soil erosion and conservation potential of row crop farming in mountainous landscapes of South Korea
… especially as a consequence of accelerated erosion by water during recent decades. In consideration of climate change and an increasing food demand of a rising population, there is an urgent need to conserve the soil resources by implementing effective erosion control measures for …
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Modélisation de l'érosion hydrique en milieu semi-aride de forte énergie de relief à partir de données de télédétection application à la Bolivie
In this study, we propose a model of water erosion risks for such environments using remote sensing and morphometric data: MEH-SAFER (Modèle d'Érosion Hydrique en milieu Semi-Aride de Forte Energie de Relief). MEH-SAFER is based on the Lamachère and Guillet model (MLG) (Burkina Faso) to the Lake …
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Assessing land degradation and land use in the Libyan Al-jabal Alakhdar region.
… in eastern Libya subject to soil loss through water erosion. Temporal changes in landscape cover are detected between 1984 and 2008 using satellite imagery: a 26% decrease in dense vegetation and shrubs, a 100% increase in agricultural land and an increase of 5% in both irrigated crops and bare …
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Evaluation of Best Management Practices for Bladed Skid Trail Erosion Control and Determination of Erosion Model Accuracy and Applicability
… recreation; and natural processes such as flood water storage. For silvicultural operations, the majority of sediment is produced from erosion on highly disturbed areas, such as skid trails, haul roads, and log landings. Erosion from silvicultural activities not only has the potential to …
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The Effects of Stream Crossings and Associated Road Approaches on Water Quality in the Virginia Piedmont
… are often the most critical point of concern for water quality along forest roads. Several types of crossings are used for extracting timber, but limited studies actually compare different types of stream crossings with regard to their effect on water quality. The objectives of this study were to …
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Cover Crop Systems Impact on Biomass Production, Carbon-to-Nitrogen Ratio, Forage Quality, and Soil Health Indices in a Semiarid Environment.
… are characterized by perennial challenges of water deficiency including low soil moisture retention, poor soil fertility, and vulnerability to both wind and water erosion. A soil restorative strategy that has been widely practiced to protect and enhance soil physical, chemical, and biological …
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Soil erosion and suspended sediment dynamics in intensive agricultural catchments
… to aquatic ecosystems can degrade chemical water quality and ecological habitats. Management of accelerated soil losses and the transmission of sediment-associated agricultural pollutants, such as phosphorus, is required to mitigate the drive towards sustainable intensification to increase …
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