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DOI10.1038/s41467-022-28032-1
Globally elevated chemical weathering rates beneath glaciers
Li X.; Wang N.; Ding Y.; Hawkings J.R.; Yde J.C.; Raiswell R.; Liu J.; Zhang S.; Kang S.; Wang R.; Liu Q.; Liu S.; Bol R.; You X.; Li G.
Date Issued2022
ISSN2041-1723
Volume13Issue:1
Other AbstractPhysical erosion and chemical weathering rates beneath glaciers are expected to increase in a warming climate with enhanced melting but are poorly constrained. We present a global dataset of cations in meltwaters of 77 glaciers, including new data from 19 Asian glaciers. Our study shows that contemporary cation denudation rates (CDRs) beneath glaciers (2174 ± 977 Σ*meq+ m−2 year−1) are ~3 times higher than two decades ago, up to 10 times higher than ice sheet catchments (~150-2000 Σ*meq+ m−2 year−1), up to 50 times higher than whole ice sheet means (~30-45 Σ*meq+ m−2 year−1) and ~4 times higher than major non-glacial riverine means (~500 Σ*meq+ m−2 year−1). Glacial CDRs are positively correlated with air temperature, suggesting glacial chemical weathering yields are likely to increase in future. Our findings highlight that chemical weathering beneath glaciers is more intense than many other terrestrial systems and may become increasingly important for regional biogeochemical cycles. © 2022, The Author(s).
Language英语
scopus keywordschemical weathering; data set; denudation; erosion feature; erosion rate; glacial erosion; global warming; ice sheet; melting
journalNature Communications
Source Publication中国科学院西北生态环境资源研究院
Document Type期刊论文
Identifierhttp://gcip.llas.ac.cn/handle/2XKMVOVA/250528
AffiliationShaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, Northwest University, Xi’an, China; College of Urban and Environmental Sciences, Northwest University, Xi’an, China; State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, China; State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; University of Chinese Academy of Sciences, Beijing, China; China-Pakistan Joint Research Center on Earth Sciences, CAS-HEC, Islamabad, Pakistan; Department of Earth and Environmental Science, University of Pennsylvania, Philadelphia, PA, United States; Department of Environmental Sciences, Western Norway University of Applied Sciences, Sogndal, Norway; Cohen Biogeochemistry Laboratory, School of Earth and Environment, University of Leeds, Leeds, ...
Recommended Citation
GB/T 7714
Li X.,Wang N.,Ding Y.,et al. Globally elevated chemical weathering rates beneath glaciers[J]. 中国科学院西北生态环境资源研究院,2022,13(1).
APA Li X..,Wang N..,Ding Y..,Hawkings J.R..,Yde J.C..,...&Li G..(2022).Globally elevated chemical weathering rates beneath glaciers.Nature Communications,13(1).
MLA Li X.,et al."Globally elevated chemical weathering rates beneath glaciers".Nature Communications 13.1(2022).
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