文章基本信息

标题：O uso e ocupação inadequados da zona ciliar diminuem a qualidade da água de um rio urbano de pequena ordem no sul do Brasil
其他标题：Inadequate riparian zone use directly decreases water quality of a low-order urban stream in southern Brazil
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作者：Crisigiovanni, Enzo Luigi ; Nascimento, Elynton Alves do ; Godoy, Rodrigo Felipe Bedim 等
期刊名称：Revista Ambiente & Água
印刷版ISSN：1980-993X
出版年度：2020
卷号：15
期号：2
页码：1-11
DOI：10.4136/ambi-agua.2451
出版社：Instituto de Pesquisas Ambientais em Bacias Hidrográficas
摘要：Considering the current importance watercourses quality conservation, it is important to establish relationships between parameters that enable evaluation of the origins of changes in water quality, allowing actions to mitigate them. However, it is important to improve the association of different variables and to take sufficient samples. This study associates usual techniques and parameters to analyse the water quality of an urban river from Paraná State, Brazil. For this, we used biological indicators (aquatic macroinvertebrates), physical-chemical (temperature, turbidity, true colour, pH, DO and BOD5,20) indicators and microbiological (faecal and total coliforms) indicators. These indicators were related to land use and occupation classes obtained from high resolution QuickBird 2 images. For this association, the surroundings (450 meters buffer) of three distinct points of the river were considered: I. Near the spring; II. In the downtown city; and III. In a residential neighbourhood. Different values of physical, chemical and microbiological variables were detected along the river, showing evident relationships between them and with the use and occupation of the urban and peri-urban space in the characterization of surface waters. The association design was able to detect the landscape effect on water quality in a coherent way and that these connections were mainly related to suppression of the riparian forest present in the surroundings, further demonstrating the importance of this vegetation for the maintenance of watercourse quality.
关键词：macroinvertebrados aquáticos;parâmetros físico-químicos;recursos hídricos
其他关键词：aquatic macroinvertebrates;physical-chemical parameters;water resources