气候变化领域集成服务门户(CCPortal): Methoxy n-fatty acids in surface soils from the Gongga and Kunlun Mountains: Ecological implications

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DOI	10.1007/s11434-010-3228-y
	Methoxy n-fatty acids in surface soils from the Gongga and Kunlun Mountains: Ecological implications
	Bai Yan; Fang XiaoMin; Nie JunSheng; Meng QiangXiang; Chi YunPing
通讯作者	Fang, XM (通讯作者)
发表日期	2010
ISSN	1001-6538
起始页码	2258
结束页码	2267
卷号	55 期号:21
英文摘要	GC-MS characteristics of surface soil samples from the eastern and northern Tibetan Plateau provide tentative identification of 8(-14)-Methoxy hexadecanoic acid (iME-16:0) and 9(-17)-methoxy octadecanoic acid (iME-18:0). Sixty surface soil samples were collected from the eastern slope of Gongga Mountain, at elevations ranging from similar to 1230 to 4500 m (eastern Tibetan Plateau), and from the northern slope of West Kunlun Mountains, ranging from similar to 1300 to 5500 m (northern Tibetan Plateau). This study also analyzed the methoxy n-fatty acids (MFAs) of Gongga Mountain tree leaves from six common living species, at the elevation of 2900-4200 m. MFAs dominate these samples, with more centrally located methoxy groups eluting earlier than those with methoxy groups located closer to the end of the main carbon chain. MFAs occur prominently in most of the Gongga Mountain soil samples (and from six tree samples) from dominantly coniferous and deciduous broadleaved forests. Other than in two narrow vegetation zones between 4000-4350 m and 2900-3300 m, no MFAs were found in 19 Kunlun Mountains soil samples from areas covered mainly with montane desert and alpine desert steppe vegetation. Based on the inventory of plants and soils from which MFAs have been isolated, we conclude that the MFAs most probably originate from specific woody plants. If we can exclude some particular grasses as sources, MFAs may be specific woody plants-derived biomarkers; thus they would serve as an important additional proxy for comprehensive and precise ecological reconstructions.
关键词	CHINESE-LOESS-PLATEAU LACUSTRINE SEDIMENTS PLANT BIOMARKERS VEGETATION CLARKIA CARBON LIPIDS DISTRIBUTIONS HYDROCARBONS HISTORY
英文关键词	methoxy n-fatty acids; vegetation type; ecology; surface soils; Gongga Mountain; Kunlun Mountains
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000280481600011
来源期刊	CHINESE SCIENCE BULLETIN
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/257819
推荐引用方式 GB/T 7714	Bai Yan,Fang XiaoMin,Nie JunSheng,et al. Methoxy n-fatty acids in surface soils from the Gongga and Kunlun Mountains: Ecological implications[J]. 中国科学院青藏高原研究所,2010,55(21).
APA	Bai Yan,Fang XiaoMin,Nie JunSheng,Meng QiangXiang,&Chi YunPing.(2010).Methoxy n-fatty acids in surface soils from the Gongga and Kunlun Mountains: Ecological implications.CHINESE SCIENCE BULLETIN,55(21).
MLA	Bai Yan,et al."Methoxy n-fatty acids in surface soils from the Gongga and Kunlun Mountains: Ecological implications".CHINESE SCIENCE BULLETIN 55.21(2010).