Water management and sustainability: global challenges and local responses from the case study of Seropédica, Metropolitan Region of Rio de Janeiro

This paper addresses the territorial development and the water issue of the region covered by the Sepetiba Sedimentary Basin, where the municipality of Seropédica is located, in the Metropolitan Region of Rio de Janeiro. From a typo-morphological investigation on the regional scale, it seeks to approach the basin’s relationship to the water supplying for the Metropolitan Region of Rio de Janeiro; the presence of the Piranema Aquifer, which has been in permanent environmental risk due to sand extraction activities; the urban/industrial growth due to investments in course; and the precarious urban infrastructure, especially sewage and rainwater drainage systems. Qualitative and quantitative data on the potentialities and fragilities of the territory are presented in the regional scale. Locally, we propose interventions and good practices to mitigate the water problems that have been verified in the urban nuclei.

本研究针对里约热内卢大都市区（Metropolitan Region of Rio de Janeiro）内塞罗佩迪卡（Seropédica）自治市所属的塞佩蒂巴沉积盆地（Sepetiba Sedimentary Basin）覆盖区域的国土开发与水问题展开探讨。基于区域尺度的地形地貌调查，本研究旨在厘清该盆地与里约热内卢大都市区供水系统的关联；分析因采砂活动长期面临环境风险的皮拉内马含水层（Piranema Aquifer）现状；研究正推进的投资所带动的城镇与产业发展态势；以及梳理城镇基础设施存在的短板，尤其是污水与雨水排水系统。本研究在区域尺度上呈现了该区域发展潜力与脆弱性的定性与定量数据。针对本地城镇核心区已显现的水问题，本研究提出了相应的干预措施与优化实践方案，以缓解相关水患。