106 documents found, page 1 of 11
Connecting present and future soil erosion risk in the upper Tagus river region...
Duarte, A.C.; Quinta-Nova, L. C.; Monteiro, M.C.H.Soil water erosion causes soil degradation, affecting its fertility and, consequently, leading to the loss of its productive capacity and may contribute to a process of desertification. Countries in the Mediterranean basin are under the influence of a climate pattern that is unfavorable to maintaining effective soil cover, with peak precipitation events occurring, and an increase in soil erosion rates is expect...
Topography and hydrology modeling and influence on soil erosion simulation, at ...
Duarte, A.C.; Ferreira, Carla; Vitali, GiulianoDiffuse pollution from agricultural activities is a major environmental problem. The extent of the impacts is driven, e.g., by local topography due to the influence on hydrological processes. This study aims to investigate the use of dif-ferent scale topographic data in assessing runoff-erosion processes. The TopAG-NPS module, a component of the AnnAGNPS model (Annualized Agriculture Nonpoint Source), was used ...
Sustainable water management in horticulture: Problems, premises, and promises
Ferreira, Carla; Soares, Pedro R.; Guilherme, Rosa; Vitali, Giuliano; Boulet, Anne; Harrison, Matthew Tom; Malamiri, Hamid; Duarte, A.C.Water is crucial for enduring horticultural productivity, but high water-use requirements and declining water supplies with the changing climate challenge economic viability, environmental sustainability, and social justice. While the scholarly literature pertaining to water management in horticulture abounds, knowledge of practices and technologies that optimize water use is scarce. Here, we review the scienti...
Irrigation, engineering and food producion
Duarte, A.C.; Melian Navarro, Amparo; Lovelli, Stella; Castronuovo, Donato; Ruiz Canales, Antonio; Gonçalves, José ManuelThe present chapter will focus on the water use in agricultural activity, under Mediterranean edaphoclimatic conditions, with very particular characteristics, such as climatic irregularity, the absence of precipitation in the summer months, and, in many years, much rainfall in the winter months, that can require the installation of drainage systems. Despite these climatic adversities, these climatic conditions ...
The application of soil erosion models of an agroforestry basin under Mediterra...
Leite, Ana Paula; Duarte, A.C.; Marchiori, Leonardo; Morais, Maria Vitoria; Studart, André; Cavaleiro, VictorSoil erosion has been causing an imbalance in nature and the environment. It is mainly caused naturally but is also due to human interventions leading to desertification and possible contamination. Therefore, engineering, geography, and cartography have been allies in applying erosion models to predict, address, and remediate the impacts. Therefore, the Revised Universal Soil Loss Equation (RUSLE) and Soil and ...
Modelação da topografia do terreno e simulação da erosão hídrica numa pequena b...
Duarte, A.C.; Ferreira, Carla; Vitali, GiulianoNa simulação dos impactes das atividades agrícolas na poluição difusa à escala da bacia hidrográfica, é importante uma adequada configuração topográfica do terreno e a compreensão do seu comportamento hidrológico. Neste estudo foi utilizado o módulo FlowNet Generator, componente do modelo AnnAGNPS (Annualized Agriculture Nonpoint Source), para avaliação da influência da resolução vertical do Modelo Digital do T...
Topography and hydrology modeling and influence on soil erosion simulation, at ...
Duarte, A.C.; Ferreira, Carla; Vitali, GiulianoDiffuse pollution from agricultural activities is a major environmental problem. The extent of the impacts is driven, e.g., by local topography due to the influence on hydrological processes. This study aims to investigate the use of different scale topographic data in assessing runoff-erosion processes. The TopAGNPS module, a component of the AnnAGNPS model (Annualized Agriculture Nonpoint Source), was used to...
Connecting present and future soil erosion risk in the upper Tagus river Region...
Duarte, A.C.; Quinta-Nova, L.; Monteiro, M.C.H.Soil water erosion causes soil degradation, affecting its fertility and, consequently, leading to the loss of its productive capacity and may contribute to a process of desertification. Countries in the Mediterranean basin are under the influence of a climate pattern that is unfavorable to maintaining effective soil cover, with peak precipitation events occurring, and an increase in soil erosion rates is expect...
Sustentabilidade da agricultura de regadio no contexto de alterações climáticas
Duarte, A.C.Nas próximas décadas antevê-se um aumento considerável com os custos do regadio pela pressão na procura de água, por isso é imperiosoo uso mais eficiente da água na agricultura e uma diminuição drástica das perdas nos sistemas de distribuição dos aproveitamentos hidroagrícolas. Vejamso os fatores de resiliência do regadio no contexto das alterações climáticas.
Linking the present and future scenarios of soil erosion modeling in Tagus Inte...
Duarte, A.C.; Quinta-Nova, L.C.; Monteiro, M.C.H.A erosão hídrica do solo é considerada um dos processos que levam à degradação do solo, afetando a sua fertilidade e, consequentemente, a perda da capacidade de produção. O principal objetivo deste estudo foi avaliar a taxa de erosão no presente e a sua evolução futura na área do Parque Natural do Tejo Internacional. Os resultados obtidos fornecem insights sobre como os cenários futuros de desenvolvimento socio...