Streamwater is affected by several processes in the watershed including anthropogenic activities that result in changes in water quality as well as in the functioning of these stream ecosystems. Therefore, this work aims to evaluate the concentration of major ions (Ca2+, Mg2+, Na+, K+, NH4+, NO3-, NO2-, Cl-, SO4(2-), PO4(3-), HCO3-) in streams in the state of São Paulo (southeast Brazil). The sampling sites are located at undisturbed (ombrophilus dense forest, semideciduous forest and savanna - cerrado) and disturbed areas (pasture, urbanization and sugar cane crops). Streamwater chemistry varied according to land use change and, in general, was higher in disturbed sites. Streams located in undisturbed sites at Ribeira de Iguape/Alto Parana...
The conversion of riparian forests into agricultural land results in the loss of water quality and a...
Abstract; The macro region "Nordeste Paraense" in Pará state is the oldest agricultural settlement a...
The aim of this study was to identify, by multivariate statistical technique, the physic, chemical a...
Streamwater is affected by several processes in the watershed including anthropogenic activities tha...
Streamwater is affected by several processes in the watershed including anthropogenic activities tha...
Several studies in tropical watersheds have evaluated the impact of urbanization and agricultural pr...
The Cerrado is the second largest Brazilian biome and contains the headwaters of three major hydrolo...
Based on the fact that streamwater quality reflects landscape conditions, the objectives of this stu...
Changes in land cover, especially the replacement of forest by agricultural activities affect the hy...
Based on the fact that streamwater quality reflects landscape conditions, the objectives of this stu...
Several studies in tropical watersheds have evaluated the impact of urbanization and agricultural pr...
Water degradation is strongly related to agricultural activity. The aim of this study was to evaluat...
AIM: The aim of this study is to evaluate the spatial-temporal changes of chemical elements in the s...
Posses and Salto de Cima small catchments (1,200 ha and 1,500 ha, respectively) are situated in the ...
The chemical dynamics at Meio Stream Basin, So Paulo State, Brazil were evaluated using major elemen...
The conversion of riparian forests into agricultural land results in the loss of water quality and a...
Abstract; The macro region "Nordeste Paraense" in Pará state is the oldest agricultural settlement a...
The aim of this study was to identify, by multivariate statistical technique, the physic, chemical a...
Streamwater is affected by several processes in the watershed including anthropogenic activities tha...
Streamwater is affected by several processes in the watershed including anthropogenic activities tha...
Several studies in tropical watersheds have evaluated the impact of urbanization and agricultural pr...
The Cerrado is the second largest Brazilian biome and contains the headwaters of three major hydrolo...
Based on the fact that streamwater quality reflects landscape conditions, the objectives of this stu...
Changes in land cover, especially the replacement of forest by agricultural activities affect the hy...
Based on the fact that streamwater quality reflects landscape conditions, the objectives of this stu...
Several studies in tropical watersheds have evaluated the impact of urbanization and agricultural pr...
Water degradation is strongly related to agricultural activity. The aim of this study was to evaluat...
AIM: The aim of this study is to evaluate the spatial-temporal changes of chemical elements in the s...
Posses and Salto de Cima small catchments (1,200 ha and 1,500 ha, respectively) are situated in the ...
The chemical dynamics at Meio Stream Basin, So Paulo State, Brazil were evaluated using major elemen...
The conversion of riparian forests into agricultural land results in the loss of water quality and a...
Abstract; The macro region "Nordeste Paraense" in Pará state is the oldest agricultural settlement a...
The aim of this study was to identify, by multivariate statistical technique, the physic, chemical a...