Núcleo de Estudos Ambientais, Universidade Federal do Tocantins (UFT), Porto Nacional, Brazil.
Programa de Pós Graduação em Ecologia de Ambientes Aquaticos Continentais (PEA), Universidade Estadual de Maringá (UEM), Maringá, Brazil.
Environ Manage. 2021 Oct;68(4):445-452. doi: 10.1007/s00267-021-01513-7. Epub 2021 Aug 2.
The Tocantins-Araguaia Basin is one of the largest river systems in South America, located entirely within Brazilian territory. In the last decades, capital-concentrating activities such as agribusiness, mining, and hydropower promoted extensive changes in land cover, hydrology, and environmental conditions. These changes are jeopardizing the basin's biodiversity and ecosystem services. Threats are escalating as poor environmental policies continue to be formulated, such as environmentally unsustainable hydropower plants, large-scale agriculture for commodity production, and aquaculture with non-native fish. If the current model persists, it will deepen the environmental crisis in the basin, compromising broad conservation goals and social development in the long term. Better policies will require thought and planning to minimize growing threats and ensure the basin's sustainability for future generations.
托坎廷斯-阿瓜亚里流域是南美洲最大的水系之一，完全位于巴西境内。在过去几十年中，资本集中型活动，如农业综合企业、采矿业和水电，促进了土地覆盖、水文学和环境条件的广泛变化。这些变化正在危及该流域的生物多样性和生态系统服务。随着环境政策的继续制定，威胁正在加剧，例如环境不可持续的水电站、用于商品生产的大规模农业和非本地鱼类的水产养殖。如果目前的模式持续下去，它将加深流域的环境危机，从而损害长期的广泛保护目标和社会发展。更好的政策需要深思熟虑和规划，以最小化日益增长的威胁，确保流域的可持续性，造福子孙后代。
