长链烷基二醇在海洋环境重建中的研究进展

doi:10.11867/j.issn.1001-8166.2019.02.0140

地球科学进展 ›› 2019, Vol. 34 ›› Issue (2): 140 -147. doi: 10.11867/j.issn.1001-8166.2019.02.0140

长链烷基二醇在海洋环境重建中的研究进展

侯笛 ^1, ²,张俊杰 ^1, ²,邢磊 ^1, ^2, ^*(

),周阳 ^1, ²

1. 中国海洋大学海洋化学理论与工程技术教育部重点实验室，山东青岛 266100
2. 中国海洋大学海洋化学系，山东青岛 266100

收稿日期:2018-09-28 修回日期:2018-12-17 出版日期:2019-02-10
通讯作者: 邢磊 E-mail:xinglei@ouc.edu.cn
基金资助:
国家自然科学基金项目“基于长链烷基二醇指标的东海近岸区沉积有机质变化重建”（编号：41876073）；国家重点研发计划项目“河口生态系统对大型水库调控的响应及应对策略”(编号：2016YFA0600904)资助.

Progress of Long-Chain Alkyl Diols in Marine Environmental Reconstruction

Di Hou ^1, ²,Junjie Zhang ^1, ²,Lei Xing ^1, ^2, ^*( ),Yang Zhou ^1, ²

1. Key Laboratory of Marine Chemistry Theory and Technology，Ministry of Education，Ocean University of China，Qingdao 266100，China
2. Department of Marine Chemistry, Ocean University of China, Qingdao 266100，China

Received:2018-09-28 Revised:2018-12-17 Online:2019-02-10 Published:2019-03-26
Contact: Lei Xing E-mail:xinglei@ouc.edu.cn
About author:Hou Di（1994-）, male, Yuncheng City, Shanxi Province， Master student. Research areas include marine organic geochemistry. E-mail:15762274455@163.com|Xing Lei（1975-）, male, Yantai City, Shandong Province, Professor. Research areas include marine organic geochemistry. E-mail: xinglei@ouc.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China “Reconstruction of the sources of sedimentary organic matter in the coastal areas of the East China Sea using long-chain alkyl diols proxies”(No. 41876073);The National Key Programs for Fundamental Research and Development “Response of estuarine ecosystem to large reservoir regulation and coping strategy”(No. 2016YFA0600904);Project supported by the National Natural Science Foundation of China “Reconstruction of the sources of sedimentary organic matter in the coastal areas of the East China Sea using long-chain alkyl diols proxies” （No. 41876073）； The National Key Programs for Fundamental Research and Development “Response of estuarine ecosystem to large reservoir regulation and coping strategy” （No. 2016YFA0600904）.

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长链烷基二醇类化合物（Long-chain alkyl diols）是指在碳链的1号位置和链中位置连接有羟基基团的类脂化合物，普遍存在于海洋、河流和湖泊环境中。由于这类化合物分布广泛、性质稳定不易降解、且检测手段较为简单，因此具有作为生物标志物的潜力，在生物地球化学领域引起了广泛的研究和关注。关于其生物来源尚未有定论，但是研究发现1，13-diols和1，15-diols可能主要来自真眼点藻，而14-diols主要来自硅藻Proboscia。目前根据长链烷基二醇建立的指标包括：硅藻生产力、上升流强度、盐度、温度、河流输入和表层海水营养盐浓度等，对古环境气候的重建有着重要的意义。归纳总结了目前长链烷基二醇指标的研究和应用进展，这有助于未来我国边缘海长链烷基二醇来源以及二醇指标的深入研究。

关键词: 长链烷基二醇, 指示意义, 生物标志物, 环境重建

Long-chain alkyl diols contain an alkyl chain with alcohol groups at C1 and at the middle position of carbon chain, which exist widely in seas, rivers and lakes. It has been proven that these compounds are relatively resistant to degradation and have an extended occurrence in the geological record. In addition, they are relatively easy to identify. Therefore, long-chain alkyl diols can be used as potential biomarkers to trace the past change in paleoenvironment and paleoclimate. Although the sources of long-chain alkyl diols are still uncertain, the studies indicate that 1, 13 and 1, 15-diols are mainly produced by eustigmatophytes, while 14-diols are mainly from diatom Proboscia. So far, some proxies based on long-chain alkyl diols have been established to indicate the change in diatom productivity, upwelling intensity, salinity, sea surface temperature, riverine organic matter input and surface seawater nutrient concentration, which are significant for paleoenvironmental reconstruction. Current research and application of long-chain alkyl diols proxies were summarized, which would be helpful for further studying the source of long-chain alkyl diols and the application of relevant proxies in China’s marginal sea.

Key words: Long-chain alkyl diols, Indicative meaning, Biomarker, Environmental reconstruction.

中图分类号:

P593
P736.21

图1 长链烷基二醇类化合物

Fig. 1 The structure of long-chain alkyl diols

表1 基于长链烷基二醇化合物建立的指标及其指示意义

Table 1 Proxy based on long-chain alkyl diols and their indications

指标名称	指示意义	计算公式	参考文献
Diol index	主要用来指示水体盐度的变化	$D i o l i n d e x = [C 30 1,15 - d i o l]$ $/ [C 30 1,15 - d i o l] + [C 32 1,15 - d i o l] × 100$	[ 1 , 7 ]
Diol index 1	指示上升流海区的上升流强度变化	$D i o l i n d e x 1 = [C 28 1,14 - d i o l] + [C 30 1,14 - d i o l]$ $/ [C 28 1,14 - d i o l] + [C 30 1,14 - d i o l] + [C 30 1,15 - d i o l]$	[ 13 ]
Diol index 2	指示硅藻Proboscia的初级生产力以及上升流强度的变化	$D i o l i n d e x 2 = [C 28 1,14 - d i o l] + [C 30 1,14 - d i o l]$ $/ [C 28 1,14 - d i o l] + [C 30 1,14 - d i o l]$ $+ [C 28 1,13 - d i o l] + [C 30 1,13 - d i o l]$	[ 8 , 14 ]
Combined diol index	综合了Diol index 1和Diol index 2，更适合作为全球范围内上升流海区的上升流强度指标	$C o m b i n e d d i o l i n d e x = [C 28 1,14 - d i o l] + [C 30 1,14 - d i o l]$ $/ [C 28 1,14 - d i o l] + [C 30 1,14 - d i o l] + [C 28 1,13 - d i o l]$ $+ [C 30 1,13 - d i o l] + [C 30 1,15 - d i o l]$	[ 15 ]
LDI	指示表层海水温度的变化	$L o n g c h a i n D i o l I n d e x L D I = [C 30 1,15 - d i o l]$ $/ [C 28 1,13 - d i o l] + [C 30 1,13 - d i o l] + [C 30 1,15 - d i o l]$	[ 14 , 16 , 17 ]
FC₃₂1,15-diol	指示沿海地区河流有机质的输入	$F C 32 1,15 - d i o l = [C 32 1,15 - d i o l] × 100$ $/ [C 28 1,13 - d i o l] + [C 30 1,13 - d i o l]$ $+ [C 30 1,15 - d i o l] + [C 32 1,15 - d i o l]$	[ 18 , 19 , 20 ]
NDI	指示表层海水中年平均磷酸盐和硅酸盐浓度	$N u t r i e n t D i o l I n d e x N D I = [C 28 1,14 - d i o l] + [C 28 ∶ 1 1,14 - d i o l]$ $/ [C 28 1,14 - d i o l] + [C 28 ∶ 1 1,14 - d i o l] + [C 30 1,14 - d i o l]$ $+ [C 30 ∶ 1 1,14 - d i o l] + [C 28 1,13 - d i o l]$ $+ [C 30 1,13 - d i o l] + [C 30 1,15 - d i o l]$	[ 21 ]

表1 基于长链烷基二醇化合物建立的指标及其指示意义

Table 1 Proxy based on long-chain alkyl diols and their indications

指标名称	指示意义	计算公式	参考文献
Diol index	主要用来指示水体盐度的变化	$D i o l i n d e x = [C 30 1,15 - d i o l]$ $/ [C 30 1,15 - d i o l] + [C 32 1,15 - d i o l] × 100$	[ 1 , 7 ]
Diol index 1	指示上升流海区的上升流强度变化	$D i o l i n d e x 1 = [C 28 1,14 - d i o l] + [C 30 1,14 - d i o l]$ $/ [C 28 1,14 - d i o l] + [C 30 1,14 - d i o l] + [C 30 1,15 - d i o l]$	[ 13 ]
Diol index 2	指示硅藻Proboscia的初级生产力以及上升流强度的变化	$D i o l i n d e x 2 = [C 28 1,14 - d i o l] + [C 30 1,14 - d i o l]$ $/ [C 28 1,14 - d i o l] + [C 30 1,14 - d i o l]$ $+ [C 28 1,13 - d i o l] + [C 30 1,13 - d i o l]$	[ 8 , 14 ]
Combined diol index	综合了Diol index 1和Diol index 2，更适合作为全球范围内上升流海区的上升流强度指标	$C o m b i n e d d i o l i n d e x = [C 28 1,14 - d i o l] + [C 30 1,14 - d i o l]$ $/ [C 28 1,14 - d i o l] + [C 30 1,14 - d i o l] + [C 28 1,13 - d i o l]$ $+ [C 30 1,13 - d i o l] + [C 30 1,15 - d i o l]$	[ 15 ]
LDI	指示表层海水温度的变化	$L o n g c h a i n D i o l I n d e x L D I = [C 30 1,15 - d i o l]$ $/ [C 28 1,13 - d i o l] + [C 30 1,13 - d i o l] + [C 30 1,15 - d i o l]$	[ 14 , 16 , 17 ]
FC₃₂1,15-diol	指示沿海地区河流有机质的输入	$F C 32 1,15 - d i o l = [C 32 1,15 - d i o l] × 100$ $/ [C 28 1,13 - d i o l] + [C 30 1,13 - d i o l]$ $+ [C 30 1,15 - d i o l] + [C 32 1,15 - d i o l]$	[ 18 , 19 , 20 ]
NDI	指示表层海水中年平均磷酸盐和硅酸盐浓度	$N u t r i e n t D i o l I n d e x N D I = [C 28 1,14 - d i o l] + [C 28 ∶ 1 1,14 - d i o l]$ $/ [C 28 1,14 - d i o l] + [C 28 ∶ 1 1,14 - d i o l] + [C 30 1,14 - d i o l]$ $+ [C 30 ∶ 1 1,14 - d i o l] + [C 28 1,13 - d i o l]$ $+ [C 30 1,13 - d i o l] + [C 30 1,15 - d i o l]$	[ 21 ]

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