中国近海生态环境变化的同位素示踪研究

陈敏; 曾健; 杨伟锋

doi:10.3969/j.issn.0253-4193.2018.10.004

中国近海生态环境变化的同位素示踪研究

doi: 10.3969/j.issn.0253-4193.2018.10.004

厦门大学海洋与地球学院, 福建厦门 361102

基金项目: 国家重点基础研究计划课题（2015CB452903，2015CB452902）；国家海洋公益性行业科研专项（201505034）。

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出版历程
- 收稿日期: 2018-05-29
- 修回日期: 2018-06-14

The eco-environmental changes in China coastal seas elucidated from isotope tracers

College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China

摘要

摘要: 同位素在确定物质来源、指示生物地球化学循环路径、定量生物地球化学过程速率等方面具有独特的优势，本文以近海生态环境变化研究中常用的稳定同位素（¹³C、¹⁵N、¹⁸O）和放射性核素（¹⁴C、²³⁴Th、²³²Th、²³⁰Th、²²⁸Th、²¹⁰Po、²¹⁰Pb、¹³⁷Cs、²²⁶Ra、²²⁸Ra、²²⁴Ra、²²³Ra）为对象，介绍它们在揭示海洋有机质来源、食物网结构、水体缺氧机制、氮循环过程、颗粒动力学、海底地下水输入、有机地球化学过程、沉积年代学等方面的应用，侧重于总结我国近海生态环境研究中同位素示踪取得的进展。伴随着我国经济的发展，近百年来我国近海生态环境也发生了明显的变化，基于同位素示踪揭示的近海富营养化和沉积环境的演变规律表明，我国近海生态环境自20世纪50年代起经历持续的变化，特别是在过去20~30年时间里，近海生态环境的变化尤为剧烈，反映出人类活动是我国近海生态环境变化的主要驱动力。未来需要通过发展新的同位素技术及拓展更广泛的应用，围绕近海海洋生态环境变化的突出问题，重点揭示近海生态环境变化的响应特征、变化速率和作用机制，从而系统地掌握近海生态环境的时空变化规律。
- 近海生态环境 /
- 历史变化 /
- 同位素示踪
Abstract: Isotopes are unique in determining the source of material, indicating the path of biogeochemical cycle, and quantifying the rate of biogeochemical processes in marine environments. In this paper, stable isotopes (¹³C, ¹⁵N, ¹⁸O) and radionuclides (¹⁴C, ²³⁴Th, ²³²Th, ²³⁰Th, ²²⁸Th, ²¹⁰Po, ²¹⁰Pb, ¹³⁷Cs, ²²⁶Ra, ²²⁸Ra, ²²⁴Ra, ²²³Ra) commonly used in coastal eco-environmental studies were targeted to reveal the source of marine organic matter, structure of food web, mechanism of coastal hypoxia, nitrogen cyclic processes, particle dynamics, submarine groundwater input, organic geochemical processes, sedimentary chronology, etc. We focused on summarizing recent progresses of their applications in the study of China coastal seas. With the start and development of economy, the eco-environments of China coastal seas have undergone significant changes in the past one hundred years. The evolution of eutrophication and sedimentary dynamics revealed by isotopes indicated that the eco-environment of China coastal seas has experienced persistent changes since the 1950s. Especially in the past 20-30 years, the changes have been dramatic, reflecting that human activities are the main driving force for the changes. In the future, it is need to study the response characteristics, variation rates and mechanisms of coastal eco-environmental changes through the development of new isotope techniques and their widely applications. In this way, we will be able to systematically grasp the temporal and spatial changes of the coastal ecosystem.
- China costal seas /
- historical change /
- isotope

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参考文献(46)

Altabet M A. Nitrogen isotopic evidence for micronutrient control of fractional NO₃^- utilization in the equatorial Pacific[J]. Limnology and Oceanography, 2001, 46(2):368-380.

Ke Zhixin, Tan Yehui, Huang Liangmin, et al. Spatial distributions of δ¹³C, δ¹⁵N and C/N ratios in suspended particulate organic matter of a bay under serious anthropogenic influences:Daya Bay, China[J]. Marine Pollution Bulletin, 2016, 114(1):183-191, doi: 10.1016/j.marpolbul.2016.08.078.

牟新悦, 陈敏, 张琨, 等. 夏季大亚湾悬浮颗粒有机物碳、氮同位素组成及其物源指示[J]. 海洋学报, 2017, 39(2):39-52. Mu Xinyue, Chen Min, Zhang Kun, et al. Stable carbon and nitrogen isotopes as tracers of sources of suspended particulate organic matter in the Daya Bay in summer[J]. Haiyang Xuebao, 2017, 39(2):39-52.

Cole M L, Valiela I, Kroeger K D, et al. Assessment of a δ¹⁵N isotopic method to indicate anthropogenic eutrophication in aquatic ecosystems[J]. Journal of Environmental Quality, 2004, 33(1):124-132.

Post D M. Using stable isotopes to estimate trophic position:models, methods, and assumptions[J]. Ecology, 2002, 83(3):703-718.

Peterson B J, Howarth R W, Garritt R H. Multiple stable isotopes used to trace the flow of organic matter in estuarine food webs[J]. Science, 1985, 227(4692):1361-1363.

蔡德陵, 李红燕, 唐启升, 等. 黄东海生态系统食物网连续营养谱的建立:来自碳氮稳定同位素方法的结果[J]. 中国科学C辑:生命科学, 2005, 35(2):123-130. Cai Deling, Li Hongyan, Tang Qisheng, et al. Construction of the food web spectrum in the Yellow Sea and East China Sea:results from the carbon and nitrogen isotopic methods[J]. Science in China Ser C:Life Sciences, 2005, 35(2):123-130.

Chen C C, Gong G C, Shiah F K. Hypoxia in the East China Sea:one of the largest coastal low-oxygen areas in the world[J]. Marine Environmental Research, 2007, 64(4):399-408.

Zhu Zhuoyi, Zhang Jing, Wu Ying, et al. Hypoxia off the Changjiang (Yangtze River) Estuary:oxygen depletion and organic matter decomposition[J]. Marine Chemistry, 2011, 125(1/4):108-116.

Wang Hongjie, Dai Minhan, Liu Jinwen, et al. Eutrophication-driven hypoxia in the East China Sea off the Changjiang estuary[J]. Environmental Science and Technology, 2016, 50(5):2255-2263.

Casciotti K L. Nitrogen and oxygen isotopic studies of the marine nitrogen cycle[J]. Annual Review of Marine Science, 2016, 8(1):379-407.

杨志, 陈敏. 海水硝酸盐氮、氧同位素组成研究进展[J]. 地球科学进展, 2012, 27(3):268-275. Yang Zhi, Chen Min. Progress in nitrogen and oxygen isotopic composition of nitrate in seawater[J]. Advances in Earth Science, 2012, 27(3):268-275.

Sigman D M, DiFiore P J, Hain M P, et al. The dual isotopes of deep nitrate as a constraint on the cycle and budget of oceanic fixed nitrogen[J]. Deep Sea Research Part I:Oceanographic Research Papers, 2009, 56(9):1419-1439.

Ye Feng, Ni Zhixin, Xie Luhua, et al. Isotopic evidence for the turnover of biological reactive nitrogen in the Pearl River Estuary, south China[J]. Journal of Geophysical Research:Biogeoscience, 2015, 120(4):661-672.

Wang Wentao, Yu Zhiming, Song Xiuxian, et al. The effect of Kuroshio Current on nitrate dynamics in the southern East China Sea revealed by nitrate isotopic composition[J]. Journal of Geophysical Research:Oceans, 2016, 121(9):7073-7087.

Yan Xiuli, Xu M N, Wan X S, et al. Dual isotope measurements reveal zoning of nitrate processing in the summer Changjiang (Yangtze) River plume[J]. Geophysical Research Letters, 2017, 44(24):12289-12297, doi: 10.1002/2017GL075951.

Zeng Jian, Chen Min, Zheng Minfang, et al. Effects of particles on potential denitrification in the coastal waters of the Beibu Gulf in China[J]. Science of the Total Environment, 2018, 624:1274-1286.

黄奕普, 陈敏. 海洋同位素示踪技术研究进展[J]. 厦门大学学报:自然科学版, 2001, 40(2):512-523. Huang Yipu, Chen Min. Progress in the isotope tracer technique for marine science[J]. Journal of Xiamen University:Natural Science, 2001, 40(2):512-523.

Zhou Kuanbo, Dai Minhan, Kao S J, et al. Apparent enhancement of ²³⁴Th-based particle export associated with anticyclonic eddies[J]. Earth and Planetary Science Letters, 2013, 381:198-209.

Cai Pinghe, Zhao Daochen, Wang Lei, et al. Role of particle stock and phytoplankton community structure in regulating particulate organic carbon export in a large marginal sea[J]. Journal of Geophysical Research:Oceans, 2015, 120(3):2063-2095.

杨伟锋. ²¹⁰Po、²¹⁰Pb的海洋生物地球化学及其颗粒物循环与输出的意义[D]. 厦门:厦门大学, 2005. Yang Weifeng. Marine biogeochemistry of ²¹⁰Po and ²¹⁰Pb and their implications regarding the cycling and export of particles[D]. Xiamen:Xiamen University, 2005.

马嫱. 中国边缘海²¹⁰Po、²¹⁰Pb地球化学行为及其应用[D]. 厦门:厦门大学, 2013. Ma Qiang. Geochemical behaviors of ²¹⁰Po and ²¹⁰Pb and their application in the China marginal seas[D]. Xiamen:Xiamen University, 2013.

Ma Haoyang, Yang Weifeng, Zhang Lihao, et al. Utilizing ²¹⁰Po deficit to constrain particle dynamics in mesopelagic water, western South China Sea[J]. Geochemistry, Geophysics, Geosystems, 2017, 18(4):1594-1607.

Burnett W C, Bokuniewicz H, Huetel M, et al. Groundwater and pore water inputs to the coastal zone[J]. Biogeochemistry, 2003, 66(1/2):3-33.

Gu Hequan, Moore W S, Zhang Lei, et al. Using radium isotopes to estimate the residence time and the contribution of submarine groundwater discharge (SGD) in the Changjiang effluent plume, East China Sea[J]. Continental Shelf Research, 2012, 35:95-107.

Liu Q, Dai M H, Chen W F, et al. How significant is submarine groundwater discharge and its associated dissolved inorganic carbon in a river-dominated shelf system?[J]. Biogeosciences, 2012,9(5):1777-1795.

Tan Ehui, Wang Guizhi, Moore W S, et al. Shelf-scale submarine groundwater discharge in the northern South China Sea and East China Sea and its geochemical impacts[J]. Journal of Geophysical Research:Oceans, 2018, 123(4):2997-3013.

赵美训, 于蒙, 张海龙, 等. 单体分子放射性碳同位素分析在海洋科学及环境科学研究中的应用[J]. 海洋学报, 2014, 36(4):1-10. Zhao Meixun, Yu Meng, Zhang Hailong, et al. Applications of compound-specific radiocarbon analysis in oceanography and environmental science[J]. Haiyang Xuebao, 2014, 36(4):1-10.

Wang Xuchen, Li Anchun. Preservation of black carbon in the shelf sediments of the East China Sea[J]. Chinese Science Bulletin, 2007, 52(22):3155-3161.

Li Xinxin, Bianchi T S, Allison M A, et al. Composition, abundance and age of total organic carbon in surface sediments from the inner shelf of the East China Sea[J]. Marine Chemistry, 2012, 145-147:37-52.

Tao Shuqin, Eglinton T I, Montluçon D B, et al. Diverse origins and pre-depositional histories of organic matter in contemporary Chinese marginal sea sediments[J]. Geochimica et Cosmochimica Acta, 2016, 191:70-88.

Huh C A, Su C C. Sedimentation dynamics in the East China Sea elucidated from ²¹⁰Pb, ¹³⁷Cs and ^{239, 240}Pu[J]. Marine Geology, 1999, 160(1/2):183-196.

Qiao Shuqing, Shi Xuefa, Wang Guoqing, et al. Sediment accumulation and budget in the Bohai Sea, Yellow Sea and East China Sea[J]. Marine Geology, 2017, 390:270-281.

Baskaran M. ²¹⁰Po and ²¹⁰Pb as atmospheric tracers and global atmospheric ²¹⁰Pb fallout:a review[J]. Journal of Environmental Radioactivity, 2011, 102(5):500-513.

Chen Min, Ma Qiang, Guo Laodong, et al. Importance of lateral transport processes to ²¹⁰Pb budget in the eastern Chukchi Sea during summer 2003[J]. Deep-Sea Research Part Ⅱ:Topical Studies in Oceanography, 2012, 81-84:53-62.

Hamilton T F. Linking legacies of the Cold War to arrival of anthropogenic radionuclides in the oceans through the 20^th century[M]//Livingston H D. Marine Radioactivity. Netherlands:Elsevier, 2004:23-78.

Feng Xuwen, Jing Xianglong, Yu Xiaoguo, et al. Sedimentary records of eutrophication in the Changjiang Estuary upwelling area over last 100 a[J]. Acta Oceanologica Sinica, 2008, 27(6):49-61.

Yu Yu, Song Jinming, Li Xuegang, et al. Geochemical records of decadal variations in terrestrial input and recent anthropogenic eutrophication in the Changjiang Estuary and its adjacent waters[J]. Applied Geochemistry, 2012, 27(8):1556-2566.

Jia Guodong, Xu Shendong, Chen Weifang, et al. 100-year ecosystem history elucidated from inner shelf sediments off the Pearl River estuary, China[J]. Marine Chemistry, 2013, 151:47-55.

Yang Liyang, Wu Ying, Zhang Jing, et al. Burial of terrestrial and marine organic carbon in Jiaozhou Bay:Different responses to urbanization[J]. Regional Environmental Change, 2011, 11(3):707-714.

Kang Xumin, Song Jinming, Yuan Huamao, et al. The sources and composition of organic matter in sediments of the Jiaozhou Bay:implications for environmental changes on a centennial time scale[J]. Acta Oceanologica Sinica, 2017, 36(11):68-78.

张芳. 台湾海峡和海南岛东部陆架沉积物年代学研究[D]. 厦门:厦门大学, 2016. Zhang Fang. Sediment chronologies in the Taiwan strait and the eastern shelf of Hainan Island[D]. Xiamen:Xiamen University, 2016.

Yang Weifeng, Chen Min, Li Guangxue, et al. Relocation of the Yellow River as revealed by sedimentary isotopic and elemental signals in the East China Sea[J]. Marine Pollution Bulletin, 2009, 58(6):923-927.

Yang Weifeng, Chen Min, Zhang Xinxing, et al. Thorium isotopes (²²⁸Th, ²³⁰Th, ²³²Th) and applications in reconstructing the Yangtze and Yellow River floods[J]. International Journal of Sediment Research, 2013, 28(4):588-595.

Yang Weifeng, Chen Min, Zhang Fang, et al. Anthropogenic impacts on sedimentation in Jiaozhou Bay, China[J]. Journal of Coastal Conservation, 2016, 20(6):501-506.

Yang Weifeng, Zhao Xiufeng, Zhang Fang, et al. Identification of the earlier human-induced sedimentation change in Daya Bay, northern South China Sea using ²¹⁰Pb and ¹³⁷Cs[J]. Marine Pollution Bulletin, 2018, 126:334-337.

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