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Caracterização pedológica, uso da terra e modelagem da perda de solo em áreas de encosta do rebordo do planalto do RS
(Universidade Federal de Santa Maria, 2010-02-25)
The river catchment Vacacaí Mirim is located where the water reservoir that supplies part of the water needs of the city of Santa Maria is located in a hillslope area of
plateau border Southern Rio Grande. In these hillslope ...
Características físicas e químicas de sedimentos em suspensão durante eventos fluviométricos em bacias hidrográficas do sul do Brasil
(Universidade Federal de Santa Maria, 2014-08-11)
The observed high sediment load in the rivers of southern Brazil is strongly related to the degradation of agricultural soils due to water erosion. Currently there is great interest in describing the erosive processes and ...
Erosão bruta e produção de sedimentos em bacia hidrográfica sob plantio direto no planalto do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2013-02-28)
The impact of agriculture on water resources has been a focus for problems associated with reservoir siltation, depletion of water quality, reduced infiltration and soil water storage, formation of floods and low water ...
Perdas de água e sedimento em bacias pareadas de ordem zero sob plantio direto com e sem terraço
(Universidade Federal de Santa Maria, 2015-07-28)
Tillage is a conservation technique for soil management, whose principles are avoiding soil
disturbance, straw maintenance on the surface and crop rotation. Currently, negligence in its
use leads to situations of land ...
Perdas de nutrientes associadas ao escoamento e aos sedimentos erodidos em encostas sob plantio direto
(Universidade Federal de Santa Maria, 2022-01-31)
No-tillage (NT) is widely used in areas of grain crops in tropical and subtropical regions.
However, crops fields under NT with low phytomass addition and without runoff control
practices are highly susceptible to ...
Nitrato na solução do solo e na água de fontes para consumo humano numa microbacia hidrográfica produtora de fumo
(Universidade Federal de Santa Maria, 2006-11-24)
The tobacco production system in Rio Grande do Sul state is mainly developed in small farms, using shallow soils in steep slope. In these areas rivers are born forming small
watersheds. The areas are fragilized by use of ...
A insustentabilidade do uso do solo com fumicultura em terras declivosas
(Universidade Federal de Santa Maria, 2007-02-22)
Areas susceptibility to water erosion and strong pressure of soil use, as in Southern Brazil, where there is cultivation of tobacco, are prone to degradation of the natural resources. The objective of this dissertation was ...