Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2020.105227 |
Spatial distribution and potential sources of methanesulfonic acid in High Asia glaciers | |
Yao Li, Ninglian Wang, Carlo Barbante, Shichang Kang, ... Quanlian Li | |
2020-09-01 | |
发表期刊 | Atmospheric Research |
出版年 | 2020 |
英文摘要 | As a receptor of atmospheric deposition, glaciers are considered an ideal archive in the study of climate change and geochemical cycles. The deposition of methanesulfonic acid (MSA) in the glaciers provides good opportunities to study the biogeochemical cycle of sulfur in the cryosphere. In the present work, snow samples were collected from six High Asia glaciers along a north-to-south transect to determine the spatial distribution of MSA and elucidate its potential sources. The median MSA concentration in the Urumqi Glacier No.1 of Tien Shan was 138.8 ng mL−1, which was distinctly higher than those observed in the Tibetan Plateau (TP) glaciers and polar regions. The levels of MSA in the interior TP glaciers were higher than those observed in the margins of northeastern and southeastern TP. Good correlations between MSA and K+ (r = 0.86, n = 30, α = 0.01), Mg2+ (r = 0.86), and NH4+ (r = 0.73) were observed in continental glaciers. Principal component analysis indicated that MSA may have terrigenous material inputs. At Yulong Snow Mountain, MSA was correlated with Na+ (r = 0.76, n = 8, α = 0.1), a sea-salt tracer ion, suggesting that MSA may be derived from marine environments. According to dimethyl sulfide (DMS) production and NH3 emissions in High Asia, we deduced that the high concentrations of MSA in continental glaciers are possibly related to the sources of hypersaline soil environments and animal husbandry in nomadic areas. This work is useful for further studies on regional sulfur cycling and the impacts of human activities on climate change. |
领域 | 地球科学 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/292965 |
专题 | 地球科学 |
推荐引用方式 GB/T 7714 | Yao Li, Ninglian Wang, Carlo Barbante, Shichang Kang, ... Quanlian Li. Spatial distribution and potential sources of methanesulfonic acid in High Asia glaciers[J]. Atmospheric Research,2020. |
APA | Yao Li, Ninglian Wang, Carlo Barbante, Shichang Kang, ... Quanlian Li.(2020).Spatial distribution and potential sources of methanesulfonic acid in High Asia glaciers.Atmospheric Research. |
MLA | Yao Li, Ninglian Wang, Carlo Barbante, Shichang Kang, ... Quanlian Li."Spatial distribution and potential sources of methanesulfonic acid in High Asia glaciers".Atmospheric Research (2020). |
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