水科学进展2026，Vol.37Issue(3)：574-582,9.DOI:10.14042/j.cnki.32.1309.2026.03.015
山区河流特征辨析与空间识别研究进展
Advances in characterization and spatial identification of mountain rivers
摘要
Abstract
Mountain rivers serve as critical links between terrestrial eco-hydrological processes and aquatic ecological environments,playing a pivotal role in global hydrological cycles,material transport,and ecosystem maintenance.Given the heightened disaster risks and poorly defined characteristics of mountain rivers under climate change,this study systematically reviews research on mountain rivers to establish a clear scientific definition.Through comparative analysis of the geomorphological,hydrological,sedimentological,and ecological characteristics of mountain versus lowland rivers,this study identifies the defining features of mountain rivers as:surface relief ≥ 200 m/km2,longitudinal channel gradient ≥2 ‰,gravel-bedrock dominated channel beds,and relatively narrow valleys.Based on an interdisciplinary perspective integrating geomorphology,hydrology,and ecology,a classification system and spatial identification framework for mountain rivers are proposed.Future research priorities should include refined identification of mountain rivers,delineation of management and control zones,identification of flood-obstructing elements,and quantitative assessment of flood conveyance risks.The research findings can provide technical support for the classified management and systematic governance of mountain rivers.关键词
山区河流/平原河流/河流分类/空间识别/风险评估Key words
mountain rivers/lowland rivers/river classification/spatial identification/risk assessment分类
天文与地球科学引用本文复制引用
江威,严登华,庞治国,刘权,马建威,张鑫,李晨昊..山区河流特征辨析与空间识别研究进展[J].水科学进展,2026,37(3):574-582,9.基金项目
国家自然科学基金项目(42301450) （42301450）
中国国家留学基金项目(202303340010) The study is financially supported by the the National Natural Science Foundation of China(No.42301450)and the China Scholarship Council(No.202303340010). （202303340010）
