水科学进展Issue(6):885-892,8.DOI:10.14042/j.cnki.32.1309.2015.06.015
冰川径流温度及其响应机制研究进展
Recent advances in glacier-fed river stream temperature and responses research
摘要
Abstract
Within the cryosphere, glacier⁃fed streams exhibit distinctive thermal regimes due to glacier melt influ⁃ences;accordingly, these streams host a unique coldwater ecosystem. The role of water temperature as a driver of vari⁃ous intra⁃ecosystem processes is particularly significant in glacierized basins due to the strong coupling and high sensi⁃tivity between atmospheric and in⁃stream processes. In this paper, we review studies of the temperature characteristics in glacier⁃fed river streams, the influencing factors, and the response in aquatic ecosystems. Previous analyses have shown that glacial rivers are characterized by low temperatures and remarkable spatiotemporal temperature variations. Influencing factors in glacial rivers can be summarized in four major categories:heat transfer at the air⁃water interface, heat transfer at the water⁃channel interface, runoff components, and climate change and human activity. The response of a glacial river thermal regime to its physicochemical properties results in changes to the river water quality and ther⁃mo⁃hydrological fluxes. While the response of the aquatic ecosystem changes the distribution and structure of aquatic system with changing glacial stream temperature, once a certain threshold is exceeded, the change will be irreversible.关键词
冰川径流/河水温度/热量机制/水生生态系统Key words
glacier-fed river/stream temperature/thermal regime/aquatic ecosystem分类
社会科学引用本文复制引用
高坛光,张廷军,康世昌,曹琳..冰川径流温度及其响应机制研究进展[J].水科学进展,2015,(6):885-892,8.基金项目
国家自然科学基金资助项目(41501063;91325202) The study is financially supported by the National Natural Science Foundation of China ( No?41501063;No?91325202). ()