The morphometric analysis of the watershed is important to support the development of environmental studies. With the advancement of geotechnologies, Digital Surface Models (MDS), extracted from satellite images and processed in a Geographic Information System environment, have been an important source of data forthe morphometric analysis of basins. This study characterizes watershed morphometry using different MDS. The Pirapozinho river basin was adopted as the object of study. The findings of this work reveal a low propensity to flood the basin under analysis. Also, we note that there may be variations in the morphometric parameters according to the MDS used, even though they are models of the same spatial resolution.
A definição de área para disposição final de resíduos sólidos é uma tarefa complexa. No Brasil, existem regulamentos de caráter obrigatório (restritivo) e de orientação para a implantação de aterros. Todavia, a análise de aterros em operação segundo esses regulamentos é ainda algo pouco explorada, mas que pode trazer importantes informações à gestão territorial. Este trabalho investiga se os aterros no oeste do estado de São Paulo atendem aos critérios restritivos e qual o seu nível de adequabilidade ambiental e socioeconômica. Analisou-se 32 aterros, segundo quatro critérios restritivos, e um mapa de adequabilidade produzido em um trabalho anterior. Aproximadamente 41% dos aterros em operação descumprem a legislação. Daqueles em áreas legais, somente 25% encontram-se em áreas de alto nível de adequabilidade ambiental e socioeconômica. Isso demonstra a importância de se investigar os impactos socioambientais relacionados aos aterros segundo ambos os regulamentos, de caráter obrigatório e de orientação, visando uma eficaz gestão territorial.
The present study aimed to characterize the surface water quality of the Arara Stream microbasin located in the municipality of Sandovalina -SP. To reach the proposed objective, physical-chemical analyzes of the water collected in four sections of the stream were performed. In all nine parameters were analyzed. The results were compared to the values determined by Conama Resolution No. 357/05 for water bodies classified as Class 2. The values obtained for phosphorus and pH showed that these parameters are in disagreement with the aforementioned resolution, and the pH has values below and phosphorus has concentrations above those set by resolution.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.