globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2019.115958
论文题名:
How long does iron oxide dissolution and transformation require under water-logged conditions? — A perspective from agricultural activity
作者: Ma M.; He M.; Liu X.; Che B.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2020
卷: 531
语种: 英语
中文关键词: aerobic-anaerobic conditions ; magnetic mineral dissolution ; paddy soil ; soil magnetism
英文关键词: Cultivation ; Dissolution ; Magnetism ; Rain ; Soils ; Weathering ; Aerobic-anaerobic ; Agricultural activities ; Indoor experiment ; Magnetic enhancement ; Magnetic minerals ; Oxide dissolution ; Paddy soils ; Pedogenic process ; Iron oxides ; anoxic conditions ; cultivation ; dissolution ; iron oxide ; magnetic mineral ; oxic conditions ; paddy field ; pedogenesis ; weathering
英文摘要: Previous studies have revealed that magnetic enhancement caused by the pedogenic process often occurs in aerobic soils experiencing low to moderate rainfall, while magnetic reduction caused by iron oxide dissolution often occurs in anaerobic soils experiencing high rainfall. To explore the time required for iron oxide dissolution when the soil conditions transform from aerobic to anaerobic, a typical weathering crust profile was selected. The results show the complete process of magnetic enhancement and reduction, and that the former occurred in aerobic soil due to the newborn magnetic minerals during the pedogenic process, while the latter occurred under water-logged conditions caused by rice cultivation with a history of approximately 200 years. Therefore, it can be inferred that the time required for the significant dissolution of iron oxides is probably shorter than 200 years, which is longer than that determined by indoor experiments, but much shorter than the theoretical weathering model. © 2019 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165144
Appears in Collections:气候变化与战略

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作者单位: Institute of Geography, Fujian Normal University, Fuzhou, 350007, China; Key Laboratory for Subtropical Mountain Ecology, College of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China; Department of Environment and Geography, Macquarie UniversityNSW 2109, Australia

Recommended Citation:
Ma M.,He M.,Liu X.,et al. How long does iron oxide dissolution and transformation require under water-logged conditions? — A perspective from agricultural activity[J]. Earth and Planetary Science Letters,2020-01-01,531
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