Is the maximum carbon number of long-chain n-alkanes an indicator of grassland or forest Evidence from surface soils and modern plantsReportar como inadecuado




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Chinese Science Bulletin

, Volume 56, Issue 16, pp 1714–1720

First Online: 19 May 2011Received: 10 November 2010Accepted: 23 December 2010

Abstract

The molecular distribution of long-chain n-alkanes in 62 soil samples collected from diverse locations across eastern China was analyzed. The long-chain n-alkanes were mostly dominated by n-C29 or n-C31, regardless of the overlying vegetation type at each site. The results were compared with those summarized from the literature, covering more than 100 soil samples within China and more than 300 genera of modern plants distributed worldwide. There were similar n-alkane distribution patterns for most genera, with no clear differences among grasses, shrubs, and trees. The evidence from analyses of surface soils and modern plants indicates that the relationship between the molecular distribution of long-chain n-alkanes of surface soils and source vegetation is highly complex, and is influenced by many factors. Further, it is suggested that source vegetation types should not be simply inferred from distribution patterns of long-chain n-alkanes in sediments.

Keywordssurface soils modern plants long-chain n-alkanes molecular distribution vegetation type This article is published with open access at Springerlink.com

Electronic Supplementary MaterialSupplementary material is available for this article at 10.1007-s11434-011-4418-y and is accessible for authorized users.

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Autor: ZhiGuo Rao - Yi Wu - ZhaoYu Zhu - GuoDong Jia - Andrew Henderson

Fuente: https://link.springer.com/article/10.1007/s11434-011-4418-y



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