河段
How to Understand
河段 (hé duàn) refers to a specific segment or stretch of a river. It is commonly used in geographical and environmental contexts to describe a particular portion of a river's course, often for study, management, or description purposes.
The character 河 (hé) means 'river,' while 段 (duàn) means 'section' or 'segment.' Together, they form a compound noun that precisely describes a part of a river. This term is derived from the basic structure of Chinese compound words, where two meaningful characters combine to create a new concept.
河段 is frequently used in hydrology, geography, and environmental planning. For example, scientists may study different 河段 of a river to understand changes in water quality, flow, or ecosystem health. It is also used in official reports and maps to define boundaries or areas of interest along a river’s path.