Effect of burning C3 and C4 plants an the magnetic susceptibility signal in soils | |
Lu, HY; Liu, TS; Gu, ZY; Liu, BZ; Zhou, LP; Han, JM; Wu, NQ | |
刊名 | GEOPHYSICAL RESEARCH LETTERS |
2000-07-01 | |
卷号 | 27期号:13页码:2013-2016 |
ISSN号 | 0094-8276 |
文献子类 | Article |
英文摘要 | To understand the origin of the ultrafine pedogenic components responsible for the magnetic susceptibility (MS) enhancement remains a major challenging problem, in linking the magnetic signal with paleoclimatic conditions. Here we examine the influence of natural fires on the MS signal of both plants and modern soils and in particular the MS difference between C3 and C4 plant ashes and their influence possibly on soil magnetic susceptibility. We demonstrate that burning of C3 and C4 plants can enhance MS signal of modern soils. We show that C4 plants have greater potential to enhance the MS signal. The average MS value of C4 plant ashes is (532+/-61) x 10(-8)m(3) kg(-1), much higher than the average MS value of (120 +/-65) x 10(-8)m(3) kg(-1) of C3 plant ashes. The Fe2O3 concentration in C4 plant is two to four times higher than that in C3 pliant. One burning of the grassland, mainly consisting of C4 plants, can enhance MS value of the surface soil up to about 30-40%. |
WOS关键词 | CHINESE LOESS ; MAGNETOTACTIC BACTERIA ; ROCK MAGNETISM ; SEDIMENTS ; ORIGIN ; RECORD ; PALEOSOLS ; DEPOSITS |
WOS研究方向 | Geology |
语种 | 英语 |
出版者 | AMER GEOPHYSICAL UNION |
WOS记录号 | WOS:000088021600054 |
内容类型 | 期刊论文 |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/75941] |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Lu, HY |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Geol Survey Japan, Marine Geol Dept, Tsukuba, Ibaraki 3058567, Japan 3.Peking Univ, Dept Geog, Beijing 100871, Peoples R China |
推荐引用方式 GB/T 7714 | Lu, HY,Liu, TS,Gu, ZY,et al. Effect of burning C3 and C4 plants an the magnetic susceptibility signal in soils[J]. GEOPHYSICAL RESEARCH LETTERS,2000,27(13):2013-2016. |
APA | Lu, HY.,Liu, TS.,Gu, ZY.,Liu, BZ.,Zhou, LP.,...&Wu, NQ.(2000).Effect of burning C3 and C4 plants an the magnetic susceptibility signal in soils.GEOPHYSICAL RESEARCH LETTERS,27(13),2013-2016. |
MLA | Lu, HY,et al."Effect of burning C3 and C4 plants an the magnetic susceptibility signal in soils".GEOPHYSICAL RESEARCH LETTERS 27.13(2000):2013-2016. |
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