干旱区地理2024，Vol.47Issue(10)：1640-1650,11.DOI:10.12118/j.issn.1000-6060.2024.092
东昆仑鲸鱼湖流域冰川、湖泊对气候变化的响应
Responses of glacier and lake to local climate change in the Jingyu Lake Basin,east Kunlun Mountains
摘要
Abstract
Glaciers and lakes are highly sensitive to climate change.This study examines the boundaries of gla-ciers and lakes in the Jingyu Lake Basin,east Kunlun Mountains from 1990 to 2023 using Landsat series imag-ery.In addition,the DAHITI water level dataset and the global glacier mass balance dataset were utilized to ana-lyze changes in glacier area,volume,and mass balance,as well as the area,water level,and volume of the Jingyu Lake Basin.ERA5 meteorological reanalysis data were employed to assess the response of glaciers and lakes in the basin to climate change.The results indicate a significant expansion trend in the Jingyu Lake.From 1990 to 2023,Jingyu Lake expanded by 133.30 km2 at a rate of 4.66 km2·a-1.Between 2013 and 2023,the lake's water level rose by 5.19 m,with an annual increase rate of 0.55 m·a-1,and its volume increased by 1.31 km3,averaging an annual increment of 0.16 km3.During the same period,the glacier area decreased by 4.59 km2 at a rate of-0.12 km2·a-1,and the glacier volume declined by 0.38 km3 at a rate of-0.01 km3·a-1.The average annual glacier mass balance from 2000 to 2020 was-1.22×10-4 m w.e.The average annual temperature in the Jingyu Lake Basin increased significantly from 1990 to 2021,with an annual warming rate of 0.02℃·a-1.In contrast,summer pre-cipitation showed no significant warming trend,while the annual precipitation increased notably at a rate of 2.11 mm·a-1,with 78.9%of precipitation occurring in summer.Precipitation is identified as the primary factor contributing to lake expansion in the basin.This study highlights the response of glaciers and lakes in the Jingyu Lake Basin to climate change,providing valuable insights for local governments in optimizing water resource al-location and management.关键词
鲸鱼湖/冰川/气候变化/东昆仑Key words
Jingyu Lake/glaciers/climate change/east Kunlun Mountains引用本文复制引用
陈丽花,车彦军,曹昀,张明军,谷来磊,吴佳康,吕卫卫..东昆仑鲸鱼湖流域冰川、湖泊对气候变化的响应[J].干旱区地理,2024,47(10):1640-1650,11.基金项目
第三次新疆综合科学考察项目(2021xjkk0100) （2021xjkk0100）
江西省自然科学基金项目(20232BAB203060) （20232BAB203060）
国家自然科学基金项目(42101135,42461022) （42101135,42461022）
江西省教育厅科学技术研究项目(GJJ2201708) （GJJ2201708）
江西师范大学研究生国内外访学研究项目 （）
甘肃省科技计划项目(22JR5RA091)资助 （22JR5RA091）
