意大利帕多瓦大学Carrer, Marco的研究小组揭示，最近阿尔卑斯山积雪的减少是过去600年里前所未有的。相关论文发表在2023年1月12日出版的《自然—气候变化》杂志上。

该研究团队提出了从意大利瓦尔文蒂纳高海拔地区的一种匍匐灌木(Juniperthem communis L.)中提取的572个年轮宽度系列的证据。这些年轮宽度记录显示，当前积雪覆盖的持续时间比长期平均值短36日天，这是过去600年以来前所未有的下降。研究结果表明，人们迫切需要为该地区的一些最敏感的环境和社会经济部门制定适应战略。

研究人员表示，高纬度和高海拔地区的积雪对地球的气候、环境过程和社会经济活动具有强烈的影响。在过去50年里，阿尔卑斯山的积雪覆盖时间每十年减少5.6%，这已经影响到这个经济和文化在很大程度上围绕冬季展开的地区。

附：英文原文

Title: Recent waning snowpack in the Alps is unprecedented in the last six centuries

Author: Carrer, Marco, Dibona, Raffaella, Prendin, Angela Luisa, Brunetti, Michele

Issue&Volume: 2023-01-12

Abstract: Snow cover in high-latitude and high-altitude regions has strong effects on the Earth’s climate, environmental processes and socio-economic activities. Over the last 50years, the Alps experienced a 5.6% reduction per decade in snow cover duration, which already affects a region where economy and culture revolve, to a large extent, around winter. Here we present evidence from 572 ring-width series extracted from a prostrate shrub (Juniperus communis L.) growing at high elevation in the Val Ventina, Italy. These ring-width records show that the duration of current snowpack cover is 36days shorter than the long-term mean, a decline that is unprecedented over the last six centuries. These findings highlight the urgent need to develop adaptation strategies for some of the most sensitive environmental and socio-economic sectors in this region.

DOI: 10.1038/s41558-022-01575-3

Source: https://www.nature.com/articles/s41558-022-01575-3