Abstract An applied ecological approach was used to assess the anthropogenic disturbances on the aquatic systems of the Sorocaba river and its wetlands in the Sorocaba-SP municipality (Southeastern Brazil). Two samplings of water, sediment, macroinvertebrates, and macrophytes were performed in 2017, during the rainy season (February) and dry season (June). Traditional limnological methods were applied to the biological material (macrophytes and macroinvertebrates) and limnological variables. In 2017, domestic wastewater and diffuse pollution were the main anthropogenic impacts on the aquatic ecosystems of the Sorocaba municipality. The used approach allowed the verification of the human disturbances on aquatic systems, sediment, biological communities, and landscape. We found that biochemical oxygen demand, thermotolerant coliforms, total phosphorus, dissolved oxygen, and turbidity are above reference concentrations from the Brazilian guideline CONAMA Resolution 357/05. Four macroinvertebrates orders (Diptera, Oligochaeta, Hirudinea, and Gastropoda) and three macrophytes species (Eichhornia crassipes, Salvinia auriculata and Pistia stratiotes) allowed inferring that Sorocaba river and associated wetlands suffer water quality loss due to organic pollution. The major land use classes were anthropogenic agricultural and non-agricultural (75.42%) disturbances, contributing to limnological alterations and low quality of riparian vegetation. Urban wetlands were similar (e.g. sediment properties, limnological variables, bioindicators) and differed from the contributor river, a situation probably related to the wetlands bimodal pulse. Considering the hydric network of tropical countries in the same geographic region, the similar dynamics of the water bodies, and the context of urbanization, the approach can be applied to assess the human disturbances in the region.

中文翻译：

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用于评估城市湿地和贡献河流人为干扰的应用生态方法

摘要 应用生态学方法评估了索罗卡巴-SP 市（巴西东南部）索罗卡巴河及其湿地水系统的人为干扰。2017 年在雨季（2 月）和旱季（6 月）对水、沉积物、大型无脊椎动物和大型植物进行了两次采样。传统的湖沼学方法应用于生物材料（大型植物和大型无脊椎动物）和湖沼学变量。2017 年，生活污水和扩散污染是对索罗卡巴市水生生态系统的主要人为影响。所使用的方法允许验证人类对水生系统、沉积物、生物群落和景观的干扰。我们发现生化需氧量、耐热大肠菌群、总磷、溶解氧和浊度高于巴西指南 CONAMA 决议 357/05 中的参考浓度。四个大型无脊椎动物目（双翅目、寡毛纲、水蛭纲和腹足纲）和三个大型植物物种（凤眼莲、丹参和 Pistia Stratiotes）允许推断索罗卡巴河和相关湿地因有机污染而遭受水质损失。主要的土地利用类别是人为农业和非农业 (75.42%) 干扰，导致湖沼学改变和河岸植被质量低下。城市湿地是相似的（例如沉积物特性、湖沼学变量、生物指标）并且与贡献河流不同，这种情况可能与湿地双峰脉冲有关。