The study focused on managing water resources in the Upper Reaches of Pearl River in Yunnan Province. Researchers used MIKE BASIN technology to predict water supply and demand, and to allocate water resources effectively. They found that the area's water supply structure is mainly based on storage projects, but the average water resources per person are limited. Water quality in some rivers is poor, and the environmental quality of highland moors is concerning. The study addressed issues like saving water, handling pollution events, and adapting to climate change to ensure sustainable water use in the region.