气候变化领域集成服务门户(CCPortal): Distribution of aliphatic ketones in Chinese soils: Potential environmental implications

CCPortal

DOI	10.1016/j.orggeochem.2005.11.009
	Distribution of aliphatic ketones in Chinese soils: Potential environmental implications
	Bai, Yan; Fang, Xiaomin; Wang, Yongli; Kenig, Fabien; Miao, Yunfa; Wang, Youxiao
发表日期	2006
ISSN	0146-6380
起始页码	860
结束页码	869
卷号	37 期号:7
英文摘要	Lipid extracts from 28 modern soils collected across different climate zones in China and Mongolia have been analyzed systematically using gas chromatography-mass spectrometry (GC-MS). These extracts contain C-16-C-22 n-alkan-2-ones with a predominance of even carbon number homologues and n-alkan-3-ones with exclusively odd carbon numbers. The predominance of n-alkan-2-ones is attributed to microbial reworking of soil organic matter in warm and wet southeast and southwest China. Lower molecular weight (LMW) n-alkan-3-ones (C-15-C-21), maximizing at C-17 or C-19, dominate in southeast and southwest China, while the higher molecular weight (HMW) n-alkan-3-ones (C-23-C-33) with a mode at C-27 or C-29 dominate in cold, and northwest China and Mongolia. The n-alkan-2-ones and n-alkan-3-ones exhibit strong regional variations, in agreement with the spatial distribution of climate and vegetation. Their C15-21/C22-33 ratios and the carbon preference indices of the HMW (C-23-C-35) n-alkan-2-ones (CPI(H) KET) sensitively reflect the variation in soil ecosystem response. (c) 2006 Elsevier Ltd. All rights reserved.
关键词	ORGANIC-MATTER METHYL KETONES GAS-CHROMATOGRAPHY POSSIBLE ORIGIN LAKE-SEDIMENTS FOREST SOIL LIPIDS GEOCHEMISTRY AEROSOLS KEROGEN
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000239131200008
来源期刊	ORGANIC GEOCHEMISTRY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257447
推荐引用方式 GB/T 7714	Bai, Yan,Fang, Xiaomin,Wang, Yongli,et al. Distribution of aliphatic ketones in Chinese soils: Potential environmental implications[J]. 中国科学院青藏高原研究所,2006,37(7).
APA	Bai, Yan,Fang, Xiaomin,Wang, Yongli,Kenig, Fabien,Miao, Yunfa,&Wang, Youxiao.(2006).Distribution of aliphatic ketones in Chinese soils: Potential environmental implications.ORGANIC GEOCHEMISTRY,37(7).
MLA	Bai, Yan,et al."Distribution of aliphatic ketones in Chinese soils: Potential environmental implications".ORGANIC GEOCHEMISTRY 37.7(2006).