中国阿尔泰山冰川变化及其服务价值

IF 3.8 2区工程技术 Q1 ENGINEERING, CIVIL

Cold Regions Science and Technology Pub Date : 2025-06-24 DOI:10.1016/j.coldregions.2025.104592

Cai Xingran , Li Yang , Xu Chunhai , Wang Shijin , Liang Yanqing

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引用次数: 0

摘要

冰川作为干旱区重要的水资源，在生态保护和社会发展中占有重要地位。阐明冰川的时空演化特征及其服务价值的动态变化具有重要意义。基于中国第二次冰川清查和遥感影像，探讨了1991 - 2019年中国阿尔泰山冰川的时空演变特征，并结合社会、经济和自然环境条件构建了冰川服务价值评价指标体系，定量估算了冰川服务价值及其动态变化。结果表明：(1)中国阿尔泰山脉冰川面积和体积减少了21.04%和21.99%,分别从1991年到2019年,这主要发生在2 - 5平方公里的面积和海拔低于3000米a.s.l。(2)中国阿尔泰山脉的冰川服务价值从5.2307亿美元增加到12.9989亿美元从1991年到2019年,尽管服务价值减少3893万美元从2009年到2019年,展现快速冰川撤退的影响下,冰川服务价值在短期内显著增加，但从长期来看，冰川服务价值呈下降趋势。冰川气候调节、径流调节和淡水资源等服务功能具有不可替代的优势。

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Glacier change and its service value in the Chinese Altai Mountains

As an important water resource in arid areas, glaciers occupy an important position in ecological protection and social development. Clarifying the temporal and spatial evolution characteristics of glaciers and the dynamic changes in their service value is of great significance. Based on the Second Chinese glacier inventory and remote sensing images, we explore the spatial-temporal evolution characteristics of glaciers in the Chinese Altai Mountains from 1991 to 2019 and construct a glacier service value evaluation index system in combination with social, economic and natural environment conditions to quantitatively estimate the glacier service value and its dynamic changes. The results suggest that: (1) Glacier area and volume in the Chinese Altai Mountains decreased by 21.04 % and 21.99 %, respectively, from 1991 to 2019, which mainly occurred in the area of 2–5 km² and altitude below 3000 m a.s.l. (2) Glacier service value of the Chinese Altai Mountains increased from 523.07 million USD to 1299.89 million USD from 1991 to 2019, while the service value reduced by 38.93 million USD from 2009 to 2019, manifesting that under the influence of rapid glacier retreat, the glacier service value increased significantly in a short time, but in the long run, the glacier service value showed a downward trend. Glacier climate regulation, runoff regulation and freshwater resources play a significant role and have irreplaceable advantages over other service functions.

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来源期刊

Cold Regions Science and Technology 工程技术-地球科学综合

CiteScore

7.40

自引率

12.20%

发文量

209

审稿时长

4.9 months

期刊介绍： Cold Regions Science and Technology is an international journal dealing with the science and technical problems of cold environments in both the polar regions and more temperate locations. It includes fundamental aspects of cryospheric sciences which have applications for cold regions problems as well as engineering topics which relate to the cryosphere. Emphasis is given to applied science with broad coverage of the physical and mechanical aspects of ice (including glaciers and sea ice), snow and snow avalanches, ice-water systems, ice-bonded soils and permafrost. Relevant aspects of Earth science, materials science, offshore and river ice engineering are also of primary interest. These include icing of ships and structures as well as trafficability in cold environments. Technological advances for cold regions in research, development, and engineering practice are relevant to the journal. Theoretical papers must include a detailed discussion of the potential application of the theory to address cold regions problems. The journal serves a wide range of specialists, providing a medium for interdisciplinary communication and a convenient source of reference.