Tendo em vista a importância dos recursos hídricos para o desenvolvimento econômico e social de uma nação, tornam-se necessários dados representativos sobre a geometria, o relevo e a drenagem de bacias hidrográficas para subsidiar a implementação de ações e políticas públicas voltadas para o planejamento e a gestão desse recurso de forma efetiva e eficiente. Assim, o objetivo central deste estudo foi analisar a morfometria da bacia hidrográfica do Rio Verdinho, que possui uma área de 154.430,19 ha. Essa unidade hidrográfica é importante fonte de água para o desenvolvimento econômico e social do município de Rio Verde, Sudoeste de Goiás. O estudo foi realizado com uso de modelos matemáticos, produtos de sensoriamento remoto e técnicas de geoprocessamento. A área de estudo apresenta variáveis morfométricas, que associadas às formações geológicas, aos solos e à precipitação pluviométrica, são predominantemente favoráveis à conservação e à recarga de água desse sistema. Porém, a forma alongada e possíveis ocorrências de chuvas intensas na cabeceira sujeitam essa unidade hidrográfica às torrentes eventuais, podendo causar prejuízos ambientais, econômicos e outros no trecho médio e baixo da bacia; a amplitude altimétrica máxima, as maiores declividades, a densidade hidrográfica, densidade de drenagem, a presença, em menor percentual, de Argissolo Vermelho, Neossolo Litólico e Nitossolo Vermelho são favoráveis à perda de solos. Os resultados indicam que as ações antrópicas na área de estudo devem contemplar manejo e práticas conservacionistas do solo. Esses resultados subsidiarão o planejamento e à gestão ambiental desse recurso, além de servir de base para outros trabalhos em âmbito local e de outras regiões, contribuindo para a conservação da água em quantidade e qualidade adequadas para os diferentes usos. Morphometry of the Watershed of Verdinho River, Southwest of Goiás, BrazilA B S T R A C TConsidering the importance of water resources to the economical and social development of a nation, representative data about the geometry, the relief and watershed drainage have become necessary to subsidize the implementation of actions and public policies regarding planning and management of this resource in an effective and efficient way. Therefore, the main objective of this study was to analyze the morphometry of the watershed of Verdinho River of x hectares. This water unit is an important water source for the economical and social development of the municipality of Rio Verde, Southwest of Goiás. The study was accomplished with the use of mathematical models, products of remote sensing and geoprocessing techniques. The study area presents morphometric variables which, associated to geological formations, to soils and rainfall, are predominantly favorable to the water conservation and recharge of this system. However, the elongated shape and possible occurrence of intense rainfall in the river head subject this watershed to eventual torrents, being able to cause environmental and economic damages and others in the mid and lower watershed positions; the maximum altimetric amplitude, the biggest slopes, water density, drainage density, the presence, in a lowest percentage, of Red Argisol, Litholic Neosol and Red Nitosol are favorable to soil loss. The results indicate that the anthropic actions in the study area must contemplate management and conservationist practices of the soil. These results will subsidize the planning and environmental management of this water resource, besides serving as a base to other operations locally and in other regions, contributing to the preservation of the water in quantity and proper quality for different uses.Keywords: Geotechnologies; Mathematical Models; Water Resources
The control of water losses is a major concern in the sustainability of urban water utilities and in promoting the efficient use of this natural resource. Recent advances in telemetry technology provide high-resolution consumption data at the consumer level, allowing for a remarkable knowledge improvement on the different water balance components. However, few studies focus on systematic approaches for improving system operation and maintenance by processing and analysing large amounts of consumption data. This paper presents a new methodology to calculate real losses and apparent losses in distribution networks using data collected from telemetry systems. The methodology proposes a set of algorithms that are simple to implement. These algorithms were tested on different district metered areas (DMA) to improve understanding about water loss components and have already been included in commercial software. The results showed that these algorithms are robust and allow for accurately estimating the background leakage level (and unreported leaks and bursts), detecting earlier the occurrence of bursts and providing important insights into the type of illegal water uses. The use of these approaches reduced non-revenue water by more than 10% in the majority of the DMA tested. These findings are promising and demonstrate the strong potential of telemetry systems to reduce water losses and to improve the understanding of water uses.
Este trabalho objetivou analisar o uso da terra, a cobertura vegetal e a morfometria da bacia do Ribeirão Douradinho, no sudoeste de Goiás, usando geotecnologias. O uso da terra e a cobertura vegetal foram analisados para o ano de 2016, enquanto a morfometria da bacia foi estudada quanto às suas características geométricas, de relevo e de drenagem. Na bacia, com extensão total de 149,35 km², predomina área de culturas anuais (72,57%), seguida pela área de pastagem (13,10%), Cerrado/matas (10,57%) e outros usos (3,76%). Foram observadas irregularidades ambientais dentro de áreas de preservação permanente, onde estas, em diversos pontos, estão cobertas por vegetação agrícola e pastagem. A área de estudo possui geometria com pouca propensão a enchentes, mas drenagem pobre. Seu relevo é propício à atividade agropecuária, que deve ser executada em consonância com práticas conservacionistas e com fiscalização mais intensa pelos órgãos responsáveis pela aplicação da legislação ambiental vigente. An analysis of the land use, vegetation coverage and morphometry of Ribeirão Douradinho river basin, in the south-west of Goiás state, Brazil A B S T R A C TThis paper aimed analyzing the land use, the vegetation coverage and the morphometry of Ribeirão Douradinho river basin, in the south-west of Goiás state, using geotechnologies. The land use and vegetation coverage were analyzed for the year of 2016, while the morphometry of the basin was studied regarding its geometric characteristics, relief and drainage. In the basin, with a total extension of 149.35 km²m, predominates an area of annual crops (72.57%), followed by a pasture area (13.10%), Cerrado/woods (10.57%) and other uses (3.76%). Environmental irregularities were observed within the areas of permanent preservation, which, in several points, are coverage by agricultural vegetation and pasture. The studied area has geometry with low propensity to floods, but poor drainage. Its relief is propitious to farming, which must be accomplished in line with conservationist practices and with more intense supervision by the responsible organizations responsible for the implementation of the current environmental legislation.Keywords: river basin, geotechnologies, morphometric indexes, land use.
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.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.