基于2012年RTK-GPS、2015年三维激光扫描和2018年无人机航测数据,以天山乌鲁木齐河源1号冰川为研究区,分别从物质平衡、面积、末端等方面分析近期冰川变化。结果表明:乌鲁木齐河源1号冰川近年来呈快速消融趋势。2012—2018年冰川面积减...基于2012年RTK-GPS、2015年三维激光扫描和2018年无人机航测数据,以天山乌鲁木齐河源1号冰川为研究区,分别从物质平衡、面积、末端等方面分析近期冰川变化。结果表明:乌鲁木齐河源1号冰川近年来呈快速消融趋势。2012—2018年冰川面积减少0.07 km^(2),年平均面积变化率为-0.01 km^(2)·a^(-1);同期,冰川末端退缩率为6.28 m·a^(-1),且2015—2018年退缩速率大于2012—2015年;2012—2018年间表面高程下降,物质平衡为-1.13±0.18 m w.e.·a^(-1),物质损失主要发生在消融区。将2012—2018年间大地测量法冰川物质平衡与传统的花杆/雪坑法观测结果相比较,发现二者较为一致。而2012—2018年间物质平衡减小速率(-0.64 m w.e.·a^(-1))大于1980—2012年间(-0.47 m w.e.·a^(-1)),表明近期乌鲁木齐河源1号冰川继续呈快速消融趋势。展开更多
Global warming is causing melting of glaciers,which is affecting socioeconomic development.It is essential to study the combined influence of changes in structures of glaciers on human well-being and socioeconomic sys...Global warming is causing melting of glaciers,which is affecting socioeconomic development.It is essential to study the combined influence of changes in structures of glaciers on human well-being and socioeconomic systems.Herein,we considered Qilian Mountains as an example,quantified the regional socioeconomic benefits of glaciers and human well-being,and attempted to draw a correlation between glacier service value and human well-being.The findings of our study reveal that the value of glacier services in Qilian Mountains decreased from 1.84×10^(10)yuan in 1998 to 1.72×10^(10)yuan in 2018,with a spatial trend of circling down from the central region to the western and eastern regions.The distribution of human well-being showed an increasing trend,and a phenomenon of“low value central and western clustering,high value eastern sporadic distribution.”There is an increasing degree of coordination between human well-being and glacier services value;the spatial distribution shows a decreasing trend from the west to the east,with differences in the nature of coordinated development in different regions at the same coordination stage being obvious.We analyzed the changes in glacier services value and their relationship with human well-being from both micro and macro perspectives to provide theoretical support for formulating management strategies for glacier resource conservation and improving the interface between glacier service evaluation results and government decision-making.展开更多
文摘基于2012年RTK-GPS、2015年三维激光扫描和2018年无人机航测数据,以天山乌鲁木齐河源1号冰川为研究区,分别从物质平衡、面积、末端等方面分析近期冰川变化。结果表明:乌鲁木齐河源1号冰川近年来呈快速消融趋势。2012—2018年冰川面积减少0.07 km^(2),年平均面积变化率为-0.01 km^(2)·a^(-1);同期,冰川末端退缩率为6.28 m·a^(-1),且2015—2018年退缩速率大于2012—2015年;2012—2018年间表面高程下降,物质平衡为-1.13±0.18 m w.e.·a^(-1),物质损失主要发生在消融区。将2012—2018年间大地测量法冰川物质平衡与传统的花杆/雪坑法观测结果相比较,发现二者较为一致。而2012—2018年间物质平衡减小速率(-0.64 m w.e.·a^(-1))大于1980—2012年间(-0.47 m w.e.·a^(-1)),表明近期乌鲁木齐河源1号冰川继续呈快速消融趋势。
基金Shanxi Province Graduate Education and Teaching Reform Project,No.2023JG095Hebei Province Scholarship Program for Introducing Overseas Students,No.C20230510+4 种基金The Natural Science Foundation of Gansu Province,No.21JR7RA059Hebei Province Cultural and Art Science Planning and Tourism Research Project,No.HB23-YB063National Natural Science Foundation of China No.42001067State Key Laboratory of Cryospheric Science,No.SKLCS-ZZ-2021Key Science and Technology Project of Gansu Province,No.22ZD6FA005。
文摘Global warming is causing melting of glaciers,which is affecting socioeconomic development.It is essential to study the combined influence of changes in structures of glaciers on human well-being and socioeconomic systems.Herein,we considered Qilian Mountains as an example,quantified the regional socioeconomic benefits of glaciers and human well-being,and attempted to draw a correlation between glacier service value and human well-being.The findings of our study reveal that the value of glacier services in Qilian Mountains decreased from 1.84×10^(10)yuan in 1998 to 1.72×10^(10)yuan in 2018,with a spatial trend of circling down from the central region to the western and eastern regions.The distribution of human well-being showed an increasing trend,and a phenomenon of“low value central and western clustering,high value eastern sporadic distribution.”There is an increasing degree of coordination between human well-being and glacier services value;the spatial distribution shows a decreasing trend from the west to the east,with differences in the nature of coordinated development in different regions at the same coordination stage being obvious.We analyzed the changes in glacier services value and their relationship with human well-being from both micro and macro perspectives to provide theoretical support for formulating management strategies for glacier resource conservation and improving the interface between glacier service evaluation results and government decision-making.
