Hidrossedimentologic study in piquiri river

The objective of this paper was to evaluate the hidrossedimentologic parameters of the Piquiri river and relating them to basin land use systems. They were monitored the parameters of flood and suspension sediment concentrations during the period from August/2007 to April/2008 in Piquiri bridge station, Ubiratã, PR town, BR-369. They determined the rating curve of flood (R2=0,99), rating curve of suspension sediment concentrations (R2=0,95), rating curve of daily total discharge of sediments (R2=0,98) and rating curve of turbidity in function of suspension sediments (R2=0,94), being that all presented good settlements. The results indicated that can be classified in a very decrease it moderated the output of sediments of the basi

Qualidade e quantidade da água do rio piancó, teibutário do rio piranhas açu na região nordeste

No rio Pianco, tributário do rio Piranhas-Açu, está sendo monitorado a vazão e os parâmetros físico-químicos da água: oxigênio dissolvido, condutividade elétrica, pH, temperatura da água, fósforo total, potássio, cálcio, magnésio, sódio e sólidos totais. Os resultados das análises físico-químicas indicaram pelos os valores de OD que houve um certo grau de degradação da qualidade da água. Os valores de sódio, cálcio, magnésio, potássio e fósforo corrobora com a CE e sofre influencia da variação da vazão, mostrando salinidade moderada e baixa razão de adsorção de sódio. O pH variou independente da vazão na faixa de neutralidade

Loss of sediments and nutrients through runoff steepness and soybean variety on portuguesa river basin

There is a great concern in areas with intensive agricultural use, such as physical structure of soil, management system, pesticides application schedule and others. Those practices are associated with environmental problems that indirectly affect the life quality as runoff and other nutrients that are carried through it. This trial studied the loss of sediments, phosphorus and total nitrogen through runoff during the cycle of soybean crop, 2007/2008, in a tillage area on  Portuguesa  river basin, Paraná state, Paraná. The experimental design had sixteen plots with four treatments and four replications, two steepness and a green cover. The treatments were represented by T1 (conventional soybean steepness 10 %) and T4 (transgenic soybean steepness > 10 %). During the trial installation, the authors respected the steepness direction. There were eight occurrences of rainfall during the crop cycle. But, the runoff occurred only during the four first ones. The results showed that concentrations varied a lot because of the variability of drained volumes. The behavior of total nitrogen as a parameter got a good correlation with the drained volume. The parameter phosphorus obtained several concentrations despite the drained volume. Volatile solids concentrations were higher than the fixed solids ones. There was no significant effect (p ≤ 0.05) of green cover concerning the obtained results, as well as steepness

Hidrossedimentologic study in piquiri river

The objective of this paper was to evaluate the hidrossedimentologic parameters of the Piquiri river and relating them to basin land use systems. They were monitored the parameters of flood and suspension sediment concentrations during the period from August/2007 to April/2008 in Piquiri bridge station, Ubiratã, PR town, BR-369. They determined the rating curve of flood (R2 =0,99), rating curve of suspension sediment concentrations (R2 =0,95), rating curve of daily total discharge of sediments (R2 =0,98) and rating curve of turbidity in function of suspension sediments (R2 =0,94), being that all presented good settlements. The results indicated that can be classified in a very decrease it moderated the output of sediments of the basin.O objetivo deste trabalho foi avaliar os parâmetros hidrossedimentologic do rio Piquiri e relacioná-los com sistemas de uso da terra da bacia. Eles foram monitorados os parâmetros de inundação e concentrações de sedimentos em suspensão durante o período de agosto/2007 a abril/2008 na estação ponte Piquiri, Ubiratã, cidade PR, BR-369. Eles determinaram a curva de classificação de inundação (R2 = 0,99), a curva de avaliação das concentrações de sedimentos em suspensão (R2 = 0,95), a curva de classificação de descarga total diária de sedimentos (R2 = 0,98) ea curva de avaliação de turbidez em função de sedimentos em suspensão (R2 = 0,94), sendo que todos apresentaram bons sedimentos. Os resultados indicaram que podem ser classificados em um decréscimo muito que moderou a saída de sedimentos da bacia

Qualidade e quantidade da água do rio piancó, teibutário do rio piranhas açu na região nordeste

In Pianco River, tributary of the Piranhas-Acu, the flow and the physical and chemical parameters of water: dissolved oxygen, conductivity, pH, water temperature, total phosphorus, potassium, calcium, magnesium, sodium and total solids are being monitored. The results of physical and chemical analysis indicated by the values of OD that there was a degree of degradation of water quality. The values of sodium, calcium, magnesium, potassium and phosphorus corroborates with the EC and is influenced by variation of the flow, showing moderate salinity and low sodium adsorption ratio. The pH varied independently of flow in the range of neutrality.No rio Pianco, tributário do rio Piranhas-Açu, está sendo monitorado a vazão e os parâmetros físico-químicos da água: oxigênio dissolvido, condutividade elétrica, pH, temperatura da água, fósforo total, potássio, cálcio, magnésio, sódio e sólidos totais. Os resultados das análises físico-químicas indicaram pelos os valores de OD que houve um certo grau de degradação da qualidade da água. Os valores de sódio, cálcio, magnésio, potássio e fósforo corrobora com a CE e sofre influencia da variação da vazão, mostrando salinidade moderada e baixa razão de adsorção de sódio. O pH variou independente da vazão na faixa de neutralidade

Loss of sediments and nutrients through runoff steepness and soybean variety on portuguesa river basin

There is a great concern in areas with intensive agricultural use, such as physical structure of soil, management system, pesticides application schedule and others. Those practices are associated with environmental problems that indirectly affect the life quality as runoff and other nutrients that are carried through it. This trial studied the loss of sediments, phosphorus and total nitrogen through runoff during the cycle of soybean crop, 2007/2008, in a tillage area on  Portuguesa  river basin, Paraná state, Paraná. The experimental design had sixteen plots with four treatments and four replications, two steepness and a green cover. The treatments were represented by T1 (conventional soybean steepness 10 %) and T4 (transgenic soybean steepness > 10 %). During the trial installation, the authors respected the steepness direction. There were eight occurrences of rainfall during the crop cycle. But, the runoff occurred only during the four first ones. The results showed that concentrations varied a lot because of the variability of drained volumes. The behavior of total nitrogen as a parameter got a good correlation with the drained volume. The parameter phosphorus obtained several concentrations despite the drained volume. Volatile solids concentrations were higher than the fixed solids ones. There was no significant effect (p ≤ 0.05) of green cover concerning the obtained results, as well as steepness

Loss of sediments and nutrients through runoff steepness and soybean variety on portuguesa river basin

There is a great concern in areas with intensive agricultural use, such as physical structure of soil, management system, pesticides application schedule and others. Those practices are associated with environmental problems that indirectly affect the life quality as runoff and other nutrients that are carried through it. This trial studied the loss of sediments, phosphorus and total nitrogen through runoff during the cycle of soybean crop, 2007/2008, in a tillage area on Portuguesa river basin, Paraná state, Paraná. The experimental design had sixteen plots with four treatments and four replications, two steepness and a green cover. The treatments were represented by T1 (conventional soybean steepness 10 %) and T4 (transgenic soybean steepness > 10 %). During the trial installation, the authors respected the steepness direction. There were eight occurrences of rainfall during the crop cycle. But, the runoff occurred only during the four first ones. The results showed that concentrations varied a lot because of the variability of drained volumes. The behavior of total nitrogen as a parameter got a good correlation with the drained volume. The parameter phosphorus obtained several concentrations despite the drained volume. Volatile solids concentrations were higher than the fixed solids ones. There was no significant effect (p ≤ 0.05) of green cover concerning the obtained results, as well as steepness.Há uma grande preocupação em áreas com uso agrícola intensivo, tais como a estrutura física do solo, sistema de gestão, programação de aplicação de pesticidas e outros. Essas práticas estão associadas a problemas ambientais que afetam indiretamente a qualidade de vida como o escoamento e outros nutrientes que são realizadas através dele. Este ensaio estudou a perda de sedimentos, fósforo e nitrogênio total através de escoamento durante o ciclo da cultura da soja, 2007/2008, em uma área de lavoura em bacia do rio Portuguesa, Estado do Paraná, Paraná. O delineamento experimental teve dezesseis parcelas com quatro tratamentos e quatro repetições, duas declividade e uma cobertura verde. Os tratamentos foram representados por T1 (inclinação de soja convencional, <10%), T2 (inclinação de soja transgénica 10%) e T4 (inclinação de soja transgénica> 10%). Durante a instalação do julgamento, os autores respeitada a direção declividade. Havia oito ocorrências de chuvas durante o ciclo da cultura. Mas, o segundo turno só ocorreu durante os quatro primeiros. Os resultados mostraram que as concentrações variaram muito por causa da variabilidade dos volumes drenados. O comportamento do nitrogênio total como parâmetro tem uma boa correlação com o volume drenado. O fósforo parâmetro obtido várias concentrações apesar do volume escoado. Concentração de sólidos voláteis foram maiores do que os sólidos fixos. Não houve efeito significativo (p ≤ 0,05) da cobertura verde sobre os resultados obtidos, bem como declividade