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Mostrando ítems 41-50 de 439
Modelagem de processos erosivos em uma bacia agrícola: limitações e possibilidades
(Universidade Federal de Santa MariaBrasilAgronomiaUFSMPrograma de Pós-Graduação em Ciência do SoloCentro de Ciências Rurais, 2017-03-01)
The growing demand for modeling tools able represent erosive processes in catchments, and their connections, requires that mathematical modelling be associated with monitoring. This doctoral thesis sought to contribute to ...
Transport of chemical species dissolved in fluvial waters of a small catchment forested with eucalyptus in Angatuba, São PauloTRANSPORTE DE ESPÉCIES QUÍMICAS DISSOLVIDAS EM ÁGUAS FLUVIAIS DE UMA MICROBACIA COM EUCALIPTOS EM ANGATUBA, SÃO PAULO
(Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista, 2009)
Responses of stream zooplankton diversity metrics to eutrophication and temporal environmental variability in agricultural catchments
(Springer, 2020-11-26)
Eutrophication of rivers and streams in agricultural lands is one of the main threats for biodiversity and ecosystem functions. This study was focused on seven subtropical streams where agriculture is the predominant land ...
Future runoff from glacierized catchments in the Central Andes could substantially decrease
(American Geophysical Union, 2016-04)
In Peru, about 50% of the energy is produced from hydropower plants. An important amount of this energy is produced with water from glaciated catchments. In these catchments river streamflow is furthermore needed for other ...
Plants vs. Streams: Their groundwater‐mediated competition at “El Morro”, a developing catchment in the dry plains of Argentina
(Wiley, 2021-04)
Our understanding of how groundwater mediates evapotranspiration/streamflow partitioning is still fragmented and catchment studies under changing vegetation conditions can provide a useful frame for integration. We explored ...
Multidecadal change in streamflow associated with anthropogenic disturbances in the tropical Andes
(2015)
Andean headwater catchments are an important source of freshwater for downstream water users. However, few long-term studies exist on the relative importance of climate change and direct anthropogenic perturbations on flow ...
Dinâmica do fósforo de sedimentos oriundos de bacia hidrográfica subtropical compoluição rural e urbana
(Universidade Federal de Santa MariaBRAgronomiaUFSMPrograma de Pós-Graduação em Ciência do Solo, 2015-11-23)
Areas at steep slopes in the catchments with high occupation by family farmers in Southern Brazil, even with a high surface covered with regenerated forests, are characterized by the persistence of sources of rural and ...
Using hydrogeochemical signatures of stream water to assess pathways for rainfall events: towards a predictive model
(Chichester, 2013-03-28)
Thanks to its simple division into agricultural and forestry land use, the Corbeira catchment (Galicia, Spain) is used as a case study to build a predictive model using hydrogeochemical signatures. Stream data acquired ...
Nitrate-dependent Uranium mobilisation in groundwater
(2019-11-25)
Nitrate is a critical substance that determines the prevailing redox conditions in groundwater, and in turn the behaviour of Uranium (U). Therefore, the excessive use of nitrate-fertiliser in agricultural catchments could ...