The researchers studied the water quality in Gufu River to understand how it changes over time and space. They collected samples from different areas and seasons, analyzing 9 water quality indicators. The results showed that the water quality varied significantly between different locations and seasons. Factors like natural processes and human activities, such as agriculture and untreated sewage, influenced the water quality. This study highlights the importance of managing and protecting water resources to improve water quality in the Gufu River.