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DOI	10.1016/j.epsl.2019.115958
	How long does iron oxide dissolution and transformation require under water-logged conditions? — A perspective from agricultural activity
	Ma M.; He M.; Liu X.; Che B.
发表日期	2020
ISSN	0012821X
卷号	531
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.
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
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202766
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
推荐引用方式 GB/T 7714	Ma M.,He M.,Liu X.,等. How long does iron oxide dissolution and transformation require under water-logged conditions? — A perspective from agricultural activity[J],2020,531.
APA	Ma M.,He M.,Liu X.,&Che B..(2020).How long does iron oxide dissolution and transformation require under water-logged conditions? — A perspective from agricultural activity.Earth and Planetary Science Letters,531.
MLA	Ma M.,et al."How long does iron oxide dissolution and transformation require under water-logged conditions? — A perspective from agricultural activity".Earth and Planetary Science Letters 531(2020).