The visible lake is only part of Fuxian. Water reaches it through a surrounding catchment of slopes, fields, settlements and rivers. A shore photograph places a boundary between land and water; the watershed connects what lies on both sides of that line.
The protection regulation that took effect in 2024 defines the Fuxian catchment principally through Chengjiang, Jiangchuan District and Huaning, and explicitly excludes the Xingyun Lake sub-catchment. The definition is useful beyond administration. It asks the lake to be understood through the places that collect and carry its water, rather than as an isolated blue surface.


