当前位置: X-MOL 学术Environ. Geochem. Health › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Temperature and discharge variations in natural mineral water springs due to climate variability: a case study in the Piedmont Alps (NW Italy)
Environmental Geochemistry and Health ( IF 4.2 ) Pub Date : 2021-03-03 , DOI: 10.1007/s10653-021-00864-8
Leone Bastiancich 1 , Manuela Lasagna 1 , Susanna Mancini 1 , Mauro Falco 2 , Domenico Antonio De Luca 1
Affiliation  

In the context of global climate change, understanding the relationships between climate and groundwater is increasingly important. This study in the NW Alps represents the first regional-scale investigation of the groundwater feature variation in mountain aquifers due to climate variability. The analysis of groundwater temperature and discharge in 28 natural mineral water springs and meteorological parameters (rainfall and air temperature) permitted us to evaluate the annual behaviour and possible trends of these parameters during the period from 2001 to 2018. The air temperature showed a positive trend almost everywhere, with a rise of up to 0.03 °C/year. In contrast, only ten springs showed a positive trend for groundwater temperature, but with the smallest rates of increase. Moreover, despite the substantial stability of the rainfall amount, 50% of the analysed springs showed a trend (29 and 21% for positive and negative trends, respectively) with low discharge variations. Finally, cross-correlation analyses proved the close relationship between air and groundwater temperatures, with a time lag between 0 and 3 months, and between spring discharge and air temperature, with a time lag between 1 and 3 months. In particular, spring discharge is closely connected to snow melting in spring and subordinate to rainfall. These results highlight the existing correlations between spring discharge and various meteorological and topographic parameters in the studied mountain area and provide a preliminary framework of the impacts of climatic variability on the availability and temperature of the exploited water resources.



中文翻译:

气候变化导致的天然矿泉水温度和流量变化:皮埃蒙特阿尔卑斯山(意大利西北部)的案例研究

在全球气候变化的背景下,了解气候与地下水之间的关系变得越来越重要。这项在西北阿尔卑斯山进行的研究代表了对气候变化导致的山区含水层地下水特征变化的首次区域尺度调查。通过对 28 个天然矿泉水的地下水温度和排放量以及气象参数(降雨量和气温)的分析,我们可以评估 2001 年至 2018 年期间这些参数的年度行为和可能的趋势。气温呈正趋势几乎无处不在,上升幅度高达 0.03 °C/年。相比之下,只有 10 个泉水的地下水温度呈正趋势,但增幅最小。此外,尽管降雨量基本稳定,50% 的分析弹簧显示出流量变化低的趋势(正趋势和负趋势分别为 29% 和 21%)。最后,互相关分析证明了空气和地下水温度之间的密切关系,时滞在 0 到 3 个月之间,泉水与气温之间存在密切关系,时滞在 1 到 3 个月之间。特别是春季流量与春季融雪密切相关,从属于降雨。这些结果突出了研究山区春季流量与各种气象和地形参数之间的现有相关性,并提供了气候变率对已开发水资源的可用性和温度影响的初步框架。

更新日期:2021-03-04
down
wechat
bug