Abstract：
Over two decades, the area with sugarcane has more than doubled, from 4.8 million hectares in 2000 to 10 million in 2018, in Brazil. São Paulo State is mostly responsible for the sugarcane production in the country, accounting for 51% of the national production. In 2008, a study was conducted analysing the relationship between sugarcane cultivation and the aquatic macroinvertebrate community, showing the impacts of sugarcane on the macroinvertebrate aquatic fauna. The present study aims to gather actual information on the aquatic macroinvertebrate community in the same streams studied in 2008, to make a historical comparison with studies previously carried out. Eight streams were selected; four located in areas of sugarcane cultivation and four located in preserved areas. Three samples were carried out between 2018 and 2020. The aquatic macroinvertebrates were collected using a D-frame aquatic net (250 μm) including riffle and pools areas and identified using specific identification keys. The results of the historical assessment showed better ecological conditions of the streams in 2008 when compared to 2018 in areas of sugarcane cultivation, suggesting that the environmental impact was maintained and increased after ten years.
摘要：
二十多年来,甘蔗面积增加了一倍多，巴西从2000年的480万公顷增加到2018年的1000万公顷。圣保罗州主要负责该国的甘蔗生产，占国民生产的51%。2008年，进行了一项研究，分析了甘蔗种植与水生大型无脊椎动物群落之间的关系，显示了甘蔗对大型无脊椎动物水生动物的影响。本研究旨在收集2008年研究的相同河流中水生大型无脊椎动物群落的实际信息，以与以前进行的研究进行历史比较。选择了八条溪流；四个位于甘蔗种植区域，四个位于保护区。在2018年至2020年之间进行了三个样本。使用D型水网（250μm）收集水生大型无脊椎动物，其中包括浅滩和水池区域，并使用特定的识别键进行识别。历史评估结果显示，与2018年相比，2008年甘蔗种植地区的溪流生态条件更好，这表明环境影响在十年后得到了维持和增加。
