干旱区地理2024，Vol.47Issue(8)：1277-1291,15.DOI:10.12118/j.issn.1000-6060.2024.112
萨吾尔山冰川现状及演化过程
Glaciers in Saur Mountains:Current situation and evolutionary process
摘要
Abstract
The Saur Mountains,one of the 14 mountain ranges with glaciers in western China,span across China and Kazakhstan.Although the glaciers are relatively small,scientific research is challenged by the division be-tween two political entities.The water resources from the Saur Mountains'glaciers are crucial for the develop-ment of Jeminay County,Xinjiang,China.This study integrates aerial topographic maps,Landsat and Sentinel satellite remote sensing images,existing glacier inventories,Google Earth high-resolution historical images,and other data.Remote sensing observations were verified on-site,and a detailed study on the current status and his-torical evolution of the Saur Mountains'glaciers over the past 30 years was conducted.The results indicate that:(1)As of 2022,there are 31 glaciers in the Saur Mountains,covering a total area of 11.47 km2.The Muz Taw gla-cier,the largest in the range,is located in Jeminay County with an area of 2.95 km2.The remaining 90%of gla-ciers are each less than 1 km2,but collectively account for 54.55%of the total glacier area.The latitude height and lower altitude limit of glacier distribution in the Saur Mountains are second only to those in the Altay Moun-tains,making the Saur Mountains a typical high-latitude,low-altitude glacier distribution region in China.(2)Over the past 30 years,the glaciers in the Saur Mountains have experienced increased splitting,area shrinkage,and terminal retreat.The number of glaciers increased from 12 to 31,while the total glacier area decreased by 8.11 km2,a retreat rate of 41.42%.During the same period,the length of each glacier retreated by 373 m,with an average annual retreat of 11.30 m.Rising temperatures,reduced glacier albedo,and increased glacier fragmenta-tion are the primary reasons for this retreat.(3)Compared to the other 13 mountain ranges in western China,the Saur Mountains have experienced the largest relative retreat in glacier area over the past half-century.With global warming,the glaciers in the Saur Mountains are likely to completely melt,significantly impacting the sustainable development of Jeminay County,which is already dry and water-poor.Early planning is essential to address the impending water resource crisis in Jeminay County.关键词
冰川现状/演化过程/冰川变化/萨吾尔山Key words
current status of glaciers/evolutionary process/glacier changes/Saur Mountains引用本文复制引用
牟建新,李忠勤,王璞玉,梁鹏斌,王炎强,白昌彬,王芳龙..萨吾尔山冰川现状及演化过程[J].干旱区地理,2024,47(8):1277-1291,15.基金项目
第三次新疆综合科学考察项目课题(2022xjkk07012,2022xjkk0101) （2022xjkk07012,2022xjkk0101）
国家自然科学基金(42301166,42371148) （42301166,42371148）
甘肃省自然科学基金(23JRRA658)资助 （23JRRA658）
