Paná Sofía, Marinelli M Victoria, Bonansea Matías, Ferral Anabella, Valente Donatella, Camacho Valdez Vera, Petrosillo Irene
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Cdad. de Valparaíso S/N, Córdoba, Argentina.
Instituto Gulich, Centro Espacial Teófilo Tabanera, Universidad Nacional de Córdoba-CONAE, Ruta 45 km 8, Falda del Cañete, 5187, Córdoba, Argentina.
Sci Rep. 2024 Feb 26;14(1):4670. doi: 10.1038/s41598-024-53604-0.
Agricultural intensification and urban sprawl have led to significant alterations in riverscapes, and one of the critical consequences is the deterioration of water quality with significant implications for public health. Therefore, the objectives of this study were the assessment of the water quality of the Suquía River, the assessment of LULC change at different spatial scales, and the analysis of the potential seasonal correlation among LULC change and Water Quality Index (WQI). The Sample Sites (SS) 1 and 2 before Cordoba city had the highest WQI values while from SS3 the WQI decreased, with the lowest WQI close to the wastewater treatment plant (SS7) after Cordoba city. From SS8 in a agricultural context, the WQI increases but does not reach the original values. In light of analysis carried out, the correlation between water quality variables and the different LULC classes at the local and regional scales demonstrated that WQI is negatively affected by agricultural and urban activities, while natural classes impacted positively. The spatialization of the results can help strongly in assessing and managing the diffusion of point and non-point pollution along the riverscape. The knowledge gained from this research can play a crucial role in water resources management, which supports the provision of river ecosystem services essential for the well-being of local populations.
农业集约化和城市扩张导致了河流景观的显著变化，其中一个关键后果是水质恶化，对公众健康产生重大影响。因此，本研究的目的是评估苏基亚河的水质，评估不同空间尺度上的土地利用/土地覆盖（LULC）变化，以及分析LULC变化与水质指数（WQI）之间潜在的季节相关性。科尔多瓦市之前的采样点1和2的WQI值最高，而从采样点3开始WQI下降，在科尔多瓦市之后靠近污水处理厂的采样点7的WQI最低。在农业区域的采样点8，WQI有所上升，但未达到初始值。根据所进行的分析，在地方和区域尺度上，水质变量与不同LULC类别之间的相关性表明，WQI受到农业和城市活动的负面影响，而自然类别则产生积极影响。结果的空间化有助于有力地评估和管理沿河流景观的点源和非点源污染扩散。从这项研究中获得的知识在水资源管理中可以发挥关键作用，这有助于提供对当地居民福祉至关重要的河流生态系统服务。
