多核素联合示踪珊瑚礁区颗粒物动力学过程

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (2315 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The naturally occurring radionuclides in the sinking particle, surface sediments, and sediment cores near the Weizhou Island in the Beibu Gulf were simultaneously analyzed by high purity germanium γ spectrometer in this study. The sinking particle at the west station of the Weizhou Island was mainly attributed to the strong sediment resuspension that was demonstrated by the combined evidences of ⁴⁰K, ²³⁴Th_ex, ⁷Be, and ²³⁸U-²³²Th(²²⁸Ra)-⁴⁰K/10 ternary diagram. Sediment accumulation rates (SAR) of two sediment cores (WZ16and WZ20) at the west stations of the Weizhou Island were calculated to be 1.46×10^-3 and 2.25×10^-3 cm/d using the constant flux and constant sedimentation rate model of excess ²¹⁰Pb. These ²¹⁰Pb derived-sediment accumulation rates were only 0.50% and 0.89% of the sediment sinking rates (295×10^-3 and 252×10^-3 cm/d) derived from sediment trap, quantitatively indicating strong sediment resuspension before the ultimate burial in sediment. Additionally, a high recruitment of coral larvae was observed at the west station with strong sediment resuspension. It was speculated that the strong biogenic sediment resuspension would provide sufficient heterotrophic energy for coral polyps.

Key words： coral reefs radionuclide source identification sedimentation accumulation rate resuspension

Received: 15 August 2024

PACS:

X55

Corresponding Authors: 林武辉,教授,linwuhui8@163.com E-mail: linwuhui8@163.com

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LUO Zhu
	LIN Wu-hui
	WANG Yi-tong
	HUANG Si-yu
	YU Ke-fu

Cite this article:

LUO Zhu,LIN Wu-hui,WANG Yi-tong等. Multi-radionuclides for quantifying marine particle dynamic processes in coral reef ecosystem[J]. CHINA ENVIRONMENTAL SCIENCECE, 2025, 45(3): 1576-1586.

URL:

http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2025/V45/I3/1576

[1] Souter D, Planes S, Wicquart J, et al. Status of coral reefs of the world:2020 report[R]. 2021.
[2] 余克服.南海珊瑚礁及其对全新世环境变化的记录与响应[J].中国科学:地球科学, 2012,42(8):1160-1172. Yu K F. Coral reefs in the South China Sea:Their response to and records on past environmental changes[J]. Sci China Earth Sci, 2012, 55:1217-1229.
[3] 王文欢.近30年来北部湾涠洲岛造礁石珊瑚群落演变及影响因素[D].南宁:广西大学, 2018. Wang W H. Evolvement and influential factors of coral community over past three decases in Weizhou island reef, Beibu gulf[D]. Nanning:Guangxi University, 2018.
[4] Bothner M H, Reynolds R L, Casso M A, et al. Quantity, composition, and source of sediment collected in sediment traps along the fringing coral reef off Molokai, Hawaii[J]. Marine Pollution Bulletin, 2006, 52(9):1034-1047.
[5] 胡敏修.雷州半岛造礁珊瑚保护区悬浮物与重金属污染分析及风险评价[D].湛江:广东海洋大学, 2020. Hu M X. Analysis and risk assessment of suspended matter and heavy metal pollution in Leizhou peninsula reef-building coral reserve[D]. Zhanjiang:Guangdong Ocean University, 2020.
[6] Fabricius K E. Effects of terrestrial runoff on the ecology of corals and coral reefs:review and synthesis[J]. Marine Pollution Bulletin, 2005, 50(2):125-146.
[7] Jones R, Bessell-Browne P, Fisher R, et al. Assessing the impacts of sediments from dredging on corals[J]. Marine Pollution Bulletin, 2016,102(1):9-29.
[8] 罗勇,俞晓磊,黄晖.悬浮物对造礁石珊瑚营养方式的影响及其适应性研究进展[J].生态学报, 2021,41(21):8331-8340. Luo Y,Yu X L,Huang H.Effect of suspended sediment on the nutritional mode of scleractinian corals and their adaptability:state of knowledge and research[J]. Acta Ecologica Sinica, 2021,41(21):8331-8340.
[9] Shaghude Y, Wannas K O, Mahongo S B. Biogenic assemblage and hydrodynamic settings of the tidally dominated reef platform sediments of the Zanzibar channel[J]. Western Indian Ocean journal of marine science, 2002,1:107-116.
[10] Tuttle L J, Donahue M J. Effects of sediment exposure on corals:A systematic review of experimental studies[J]. Environmental Evidence, 2022,11(1):1-33.
[11] Tuttle L J, Johnson C, Kolinski S, et al. How does sediment exposure affect corals?A systematic review protocol[J]. Environmental Evidence, 2020,9(1):1-7.
[12] Moeller M, Nietzer S, Schils T, et al. Low sediment loads affect survival of coral recruits:The first weeks are crucial[J]. Coral Reefs, 2016,36(1):39-49.
[13] Bessell-Browne P, Negri A P, Fisher R, et al. Impacts of turbidity on corals:The relative importance of light limitation and suspended sediments[J]. Marine Pollution Bulletin, 2017,117(1/2):161-170.
[14] Perez K, Rodgers K S, Jokiel P L, et al. Effects of terrigenous sediment on settlement and survival of the reef coralPocillopora damicornis[J]. PeerJ, 2014,2:1-11.
[15] 宋金明,李鹏程.南沙群岛珊湖礁潟湖垂直沉降颗粒物中主要元素的生物地球化学过程研究[J].海洋学报, 1998,(4):52-59. Song J M, Li P C. Biogeochemical process of major elements in sinking particulate of Nansha coral reef lagoons, the South China Sea[J]. Acta Oceanologica Sinca, 1998,(4):52-59.
[16] 赵美霞,余克服,施祺,等.三亚鹿回头珊瑚礁区沉降物的来源、分布及影响因素[J].科学通报, 2013,58(17):1583-1589. Zhao M X, Yu K F, Shi Q, et al. Source, distribution and influencing factors of sediments on Luhuitou fringing reef, Northern South China Sea[J]. Chin Sci Bull (Chin Ver), 2013,58:1583-1589.
[17] Godiva D, Evangelista H, Kampel M, et al. Combined use of aerogammaspectrometry and geochemistry to access sediment sources in a shallow coral site at Armação dos Búzios, Brazil[J]. Estuarine, Coastal and Shelf Science, 2010,87(4):526-534.
[18] 林武辉,余克服,邓芳芳,等.南海现代珊瑚骨骼中放射性核素特征指纹[J].中国环境科学, 2019,39(10):4279-4289. Lin W H, Yu K F, Deng F F,et al. Fingerprints of radionuclides in modern coral skeletons in the South China Sea[J]. China Environmental Science, 2019,39(10):4279-4289.
[19] 林武辉,余克服,王英辉,等.珊瑚礁区沉积物的极低放射性水平特征与成因[J].科学通报, 2018,63(21):2173-2183. Lin W H, Yu K F, Wang Y H, et al. Extremely low radioactivity in marine sediment of coral reefs and its mechanism[J]. Chin. Sci. Bull., 2018,63:2173-2183.
[20] 林武辉,余克服,王英辉,等.罕见的地表低辐射水平区域:珊瑚礁区[J].辐射防护, 2018,38(4):287-292. Lin W H, Yu K F, Wang Y H, et al. Unusual low radiation area on the surface of the earth:coral reefs[J]. Radiation Protection, 2018,38(4):287-292.
[21] 林武辉,陈肖霞,余克服,等.南海岛礁工程中建筑材料的天然放射性核素含量及辐射水平评价[J].辐射防护, 2020,40(1):23-30. Lin W H, Chen X X, Yu K F, et al. Natural radionuclides and radiological assessment for building materials used in reef engineering in the South China Sea[J]. Radiation Protection, 2020,40(1):23-30.
[22] 林武辉,余锦萍,余克服,等.北部湾涠洲岛海域沉积物中物质来源解析--来自元素、稳定同位素、放射性核素的证据[J].沉积学报, 2021,39(3):621-630. Lin W H, Yu J P, Yu K F, et al. Source identification in a ²¹⁰Pb-dated sediment core near Southwest Weizhou Island, Beibu Gulf:Evidence from elements, Stable isotopes and radionuclides[J]. Acta Sedimentologica Sinica, 2021,39(3):621-630.
[23] 林武辉,余克服,王英辉,等.海洋沉积过程的铀系放射性核素示踪技术:物源识别、沉积、再悬浮[J].海洋地质与第四纪地质, 2020, 40(1):60-70. Lin W H, Yu K F, Wang Y H, et al. Using uranium-series radionuclides as tools for tracing marine sedimentary processes:Source identification, sedimentation rate, and sediment resuspension[J]. Marine Geology& Quaternary Geology, 2020,40(1):60-70.
[24] UNSCEAR. Sources, effects of ionizing radiation.[R]//Unscear, ed. Report to the general assembly with annex B[R]. New York:United Nations, 2000.
[25] Lin W H, Yu K F, Wang Y H, et al. Radioactive level of coral reefs in the South China Sea[J]. Marine Pollution Bulletin, 2019,142:43-53.
[26] 杨鹏玉,杨迪松,南海明,等.黄河中下游悬浮颗粒物多核素时空分布特征及其指示意义[J].海洋环境科学, 2021,40(2):215-220,227. Yang P Y, Yang D S, Nan H M, et al. Spatio-temporal distributions and indications of multi-nuclides on suspended particulate matters in the middle and lower reaches of the Yellow River[J]. Marine Environmental Science, 2021,40(2):215-220,227.
[27] 林武辉,杜陨峰,余克服,等.基于放射性核素的沉积物源识别技术探索与优化--以红树林-海草床-珊瑚礁系统为例[J].海洋学报, 2023,45(12):58-66. Lin W H,Du Y F,Yu K F, et al. Exploring and optimizing characterization of radionuclide fingerprint for tracking sediment source:Comparison of mangrove, seagrass,and coral reef ecosystems[J]. Haiyang Xuebao, 2023,45(12):58-66.
[28] Roca-Martí M, Puigcorbé V. Combined use of short-lived radionuclides (²³⁴Th and ²¹⁰Po) as tracers of sinking particles in the ocean[J]. Annual Review of Marine Science, 2024,16(1):551-575.
[29] Joseph M S, Willard S M, Thunell R C, et al. Comparison of ²³⁴Th, ²²⁸Th, and ²¹⁰Pb fluxes with fluxes of major sediment components in the Guaymas Basin, Gulf of California[J]. Marine Chemistry, 1999, 65:177-194.
[30] Jweda J, Baskaran M, van Hees E, et al. Short‐lived radionuclides (⁷Be and ²¹⁰Pb) as tracers of particle dynamics in a river system in southeast Michigan[J]. Limnology and Oceanography, 2008,53(5):1934-1944.
[31] Sanchez-Cabeza J A, Ruiz-Fernández A C. 210Pb sediment radiochronology:An integrated formulation and classification of dating models[J]. Geochimica et Cosmochimica Acta, 2012,82:183-200.
[32] 林武辉,陈立奇,余雯,等.白令海和楚科奇海陆架区的生源物质埋藏通量研究[J].极地研究, 2016,28(2):194-202. Lin W H, Chen L Q, Yu W, et al. Burial fluxes of biogenic materials in the Bering sea and Chukchi sea[J]. Chinese Journal of Polar Research, 2016,28(2):194-202.
[33] 吴亚妮,陈旸,王野,等.210Pb同位素在人类世沉积物定年中的应用[J].地球科学进展, 2024,39(1):71-81. Wu Y N, Chen Y, Wang Y, et al. Application of 210 Pb isotope in dating anthropocene sediments[J]. Advances in Earth Science, 2024, 39(1):71-81.
[34] 顾家伟.基于210Pb和137Cs计年法的黄河下游湿地沉积速率研究初探[J].地球与环境, 2020,48(6):698-703. Gu J W. Preliminary Study on the Sedimentation rate of wetlands in the lower yellow river based on the ²¹⁰Pb and ¹³⁷Cs dating techniques[J]. Earth and Environment, 2020,48(6):698-703.
[35] 王晓慧,吴伊婧,范代读.福建兴化湾外近海²¹⁰Pb法沉积速率及校正方法[J].古地理学报, 2019,21(3):527-536. Wand X H, Wu Y J, Fang D D. ²¹⁰Pb derived sedimentation rates in offshore area of the Xinghua Bay, Fujian Province, and proposed calibration method[J]. Journal of Palaeogeography, 2019,21(3):527-536.
[36] Krishnaswami S, Benninger L, Aller R, et al. Atmospherically-derived radionuclides as tracers of sediment mixing and accumulation in near-shore marine and lake sediments:evidence from 7Be, ²¹⁰Pb, and 239,240Pu[J]. Earth and Planetary Science Letters, 1980,47(3):307-318.
[37] 许冬,初凤友,杨海丽,等.北部湾现代沉积速率[J].海洋地质与第四纪地质, 2012,32(6):17-26. Xu D, Chu F Y, Yang H L, et al. Modern sedimentation rates in the Beibu gulf[J]. Marine Geology& Quaternary Geology. 2012,32(6):17-26.
[38] 庞国涛,杨源祯,张晓磊,等.广西防城港海域沉积物粒度时空变化特征及沉积速率[J].中国地质调查, 2023,10(4):89-97. Pang G T, Yang Y Z, Zhang X L, et al. Spatiotemporal variation characteristics and sedimentation rate of sediment grain size in Fangchenggang Sea of Guangxi[J]. Geological Survey of China, 2023,10(4):89-97.
[39] 王文欢,余克服,王英辉.北部湾涠洲岛珊瑚礁的研究历史、现状与特色[J].热带地理, 2016,36(1):72-79. Wang W H, Yu K F, Wang Y H. A review on the research of coral reefs in the Weizhou Island, Beibu Gulf[J]. Tropical Geography, 2016, 36(1):72-79.
[40] 张光明,吴讯达.是什么让一个油田群重获新生?[EB/OL]. 2021-03-29.https://m.thepaper.cn/baijiahao_11945248. Zhang G M, Wu X D.What brings an oilfield complex back to life?[EB/OL]. 2021-03-29.https://m.thepaper.cn/baijiahao_11945248.
[41] 牟雪江.涠洲终端20年谱写生态建设新华章[J].中国石油企业, 2018,(11):22-7,109. Mu X J. To build Weizhou terminal for 20 years and compose a new chapter of ecological Construction[J]. China Petroleum Enterprise, 2018,(11):22-27,109.
[42] 国家科技资源共享服务平台-国家海洋科学数据中心.Regional Reanalysis data-Ocean current[EB/OL]. 2021-11. https://mds.nmdis. org.cn/. National Science& Technology Infrastructure-National Marine Data Center. Regional reanalysis data-ocean current[EB/OL]. 2021-11. https://mds.nmdis.org.cn/.
[43] 杨振雄,张敬怀,吕向立,等.涠洲岛造礁石珊瑚群落变化特征及其环境影响因子[J].生态学报, 2021,41(18):7168-79. Yang Z X, Zhang J H, Lv X L, et al. The ecological succession of scleratinian coral communities and their environmental factors in Weizhou Island. Acta Ecologica Sinica, 2021,41(18):7168-7179.
[44] 何精科,黄振鹏.广西涠洲岛珊瑚分布状况研究[J].海洋开发与管理, 2019,36(1):57-62. He J K, Huang Z P. The distribution of Corals in Weizhou Island, Guangxi[J]. Ocean Development and Management, 2019,36(1):57-62.
[45] 于婉君.涠洲岛珊瑚礁区的底质特征及其对珊瑚分布的影响[D].南宁:广西大学, 2023. Yu W J. Substrate characteristics of the area of Weizhou Island reef and its effects on the distribution of corals[D]. Nanning:Guangxi University, 2023.
[46] Houlbreque F, Ferrier-Pages C. Heterotrophy in tropical scleractinian corals[J]. Biol Rev Camb Philos Soc, 2009,84(1):1-17.
[47] Jones R, Ricardo G F, Negri A P. Effects of sediments on the reproductive cycle of corals[J]. Marine Pollution Bulletin, 2015,100(1):13-33.
[48] 梁鑫,彭在清.广西涠洲岛珊瑚礁海域水质环境变化研究与评价[J].海洋开发与管理, 2018,35(1):114-119. Liang X, Peng Z Q, Analasis and appraisal of seawater quality in coral reef water, Weizhou Island, Guangxi[J]. Ocean Development and Management, 2018,35(1):114-119.
[49] 蓝军南,杨艳华,王欣,等.涠洲岛珊瑚礁生态恢复可行性评估及其恢复策略[J].应用海洋学学报, 2023,42(2):235-245. lan J N, Yang Y H, Wang X, et al. Feasibility assessment and strategies of coral reef ecological restoration in Weizhou Island[J]. Journal of Applied Oceanography, 2023,42(2):235-245.
[50] 王欣,高霆炜,陈骁,等.涠洲岛园艺式珊瑚苗圃的架设与移植[J].广西科学, 2017,24(5):462-467. Wang X, Gao T W, Chen X, et al. The construction and transplantation of coral gardening nursery in Weizhou Island[J]. Guangxi Sciences, 2017,24(5):462-467.
[51] 周浩郎,王欣,梁文.涠洲岛珊瑚礁特点、演变及保护与修复对策的思考[J].广西科学院学报, 2020,36(3):228-236. Zhou H L, Wang X, Liang W. Reflections on the characteristics, evolution and protecttion and rehabilitation strategies of the coral reefs at Weizhou Island[J]. Journal of Guangxi Academy of Sciences, 2020,36(3):228-236.
[52] 北海市涠洲岛旅游区管理委员会.北海市涠洲岛生态环境保护条例[N]. 2018-06-08. Beihai Weizhou Island Tourism Zone Management Committee. Regulations on the ecological environmental protection of Weizhou Island in Beihai City[N]. 2018-06-08.