茅埏岛红树林沉积物有机碳埋藏特征解析

于洋; 水柏年; 吕聪聪; 李滨; 李雪丽; 魏珍; 胡成业

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中国环境科学 ›› 2024, Vol. 44 ›› Issue (8) : 4539-4546.

环境生态

茅埏岛红树林沉积物有机碳埋藏特征解析

于洋, 水柏年, 吕聪聪, 李滨, 李雪丽, 魏珍, 胡成业

作者信息 +

Analysis of crganic carbon burial characteristics in mangrove sediments on Maoyan Island

YU Yang, SHUI Bo-nian, LV Cong-cong, LI Bin, LI Xue-li, WEI Zhen, HU Cheng-ye

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文章历史 +

摘要

以茅埏岛北部红树林湿地为研究区域,旨在探究红树林湿地沉积物有机碳埋藏特征和来源.基于放射性同位素(²¹⁰Pb)采用恒定沉积速率模式分析沉积速率(SAR)、有机碳密度、埋藏速率(OCAR)、有机碳潜在来源及贡献率.茅埏岛红树林湿地的沉积速率约为1.8cm/a.沉积物以粉砂和黏土为主,粒径随深度变化基本保持稳定,且过剩²¹⁰Pb活度与深度之间具有较好的相关性,表明沉积环境较为稳定.沉积物有机碳密度平均值为0.66g/cm³,埋藏速率为120.01g/(m²·a).通过碳氮稳定同位素分布特征结合多线性混合模型(IsoSource)可知,沉积物有机碳来源总体以海陆混合来源为主,其中海源占比50.3%,陆源占比33.4%,树源贡献占比16.3%;表层沉积物以陆源和树源输入为主,树源贡献率最高达46.4%.红树林植被组成、成林时间等是影响沉积物有机碳埋藏重要因素.

Abstract

The northern mangrove wetlands of Maoshan Island were taken as the study area to investigate the characteristics and sources of organic carbon burial in the sediments. The sedimentation rate (SAR), organic carbon density, burial rate (OCAR), potential sources of organic carbon, and contribution rates were analyzed using the constant sedimentation rate model based on radiogenic isotopes (²¹⁰Pb). The sedimentation rate in the Maoshan Island mangrove wetlands was approximately 1.8cm/year. The sediments were mainly composed of silt and clay, with particle size remaining stable with depth. A good correlation was observed between excess ²¹⁰Pb activity and depth, indicating a stable sedimentary environment. The average organic carbon density of the sediments was 0.66g/cm³, and the burial rate was 120.01g/(m²·a). The distribution characteristics of stable carbon and nitrogen isotopes, combined with the multivariate mixing model (IsoSource), showed that the sources of organic carbon in the sediments were mainly a mixture of marine and terrestrial origins, with marine sources accounting for 50.3%, terrestrial sources for 33.4%, and tree sources contributing 16.3%. Surface sediments were primarily influenced by terrestrial and tree inputs, with the highest contribution rate from tree sources reaching 46.4%. The composition of mangrove vegetation and the time since forest establishment were important factors affecting the burial of organic carbon in the sediments.

导出引用

于洋, 水柏年, 吕聪聪, 李滨, 李雪丽, 魏珍, 胡成业. 茅埏岛红树林沉积物有机碳埋藏特征解析[J]. 中国环境科学. 2024, 44(8): 4539-4546

YU Yang, SHUI Bo-nian, LV Cong-cong, LI Bin, LI Xue-li, WEI Zhen, HU Cheng-ye. Analysis of crganic carbon burial characteristics in mangrove sediments on Maoyan Island[J]. China Environmental Science. 2024, 44(8): 4539-4546

中图分类号： X502

参考文献

[1] Donato D C, Kauffman J B, Murdiyarso D, et al. Mangroves among the most carbon-rich forests in the tropics [J]. Nature Geoscience, 2011,4(5):293-297.
[2] Alongi D M. Carbon cycling and storage in mangrove forests [J]. Annual Review of Marine Science, 2014,6:195-219.
[3] 徐元芹,李萍,高伟,等.曼谷湾顶红树林区近百年来有机碳埋藏记录及影响因素[J]. 海洋科学进展, 2024,42(1):48-61. Xu Y Q, Li P, Gao W, et al. Organic Carbon Burial Records and Influencing Factors in the Mangrove Area at the Top of the Gulf of Bangkok over the Past Century [J]. Advances in Marine Science, 2024,42(1):48-61.
[4] Berger U, Rivera-Monroy V H, Doyle T W, et al. Advances and limitations of individual-based models to analyze and predict dynamics of mangrove forests: A review [J]. Aquatic Botany, 2008, 89(2):260-274.
[5] 张天雨,葛振鸣,张利权,等.崇明东滩湿地植被类型和沉积特征对土壤碳、氮分布的影响[J]. 环境科学学报, 2015,35(3):836-843. Zhang T Y, Ge Z M, Zhang L Q, et al. Effects of Vegetation Types and Sediment Characteristics on Soil Carbon and Nitrogen Distribution in the Chongming Dongtan Wetland [J]. Acta Scientiae Circumstantiae, 2015,35(3):836-843.
[6] 陈雅萍,叶勇.红树林凋落物生产及其归宿[J]. 生态学杂志, 2013,32(1):204-209. Chen Y P, Ye Y. Production and Fate of Mangrove Litter [J]. Chinese Journal of Ecology, 2013,32(1):204-209.
[7] 褚梦凡,肖晓彤,丁杨,等.海南儋州湾红树林区沉积有机质来源及碳储量[J]. 海洋科学, 2021,45(2):22-31. Chu M F, Xiao X T, Ding Y, et al. Sources of Sedimentary Organic Matter and Carbon Storage in the Mangrove Area of Danzhou Bay, Hainan [J]. Marine Sciences, 2021,45(2):22-31.
[8] 孙江.东寨港红树林有机碳来源、埋藏及福清宁德核电站邻近海域的环境效应[D]. 汕头:汕头大学, 2022. Sun J. Sources, Burial of Organic Carbon in the Mangrove Forest of Dongzhai Port and Environmental Effects in the Adjacent Waters of the Fuzhou and Ningde Nuclear Power Plants [D]. Shantou: Shantou University, 2022.
[9] 陈鹭真.地表高程监测在滨海蓝碳碳收支评估中的应用[J]. 海洋与湖沼, 2022,53(2):261-268. Chen L Z. Application of Surface Elevation Monitoring in the Assessment of Coastal Blue Carbon Budgets [J]. Oceanologia et Limnologia Sinica, 2022,53(2):261-268.
[10] 吴高杰.红树林沉积物有机碳的来源及其微生物碳同化研究[D]. 厦门:厦门大学, 2018. Wu G J. Study on the Sources of Organic Carbon in Mangrove Sediments and Microbial Carbon Assimilation [D]. Xiamen: Xiamen University, 2018.
[11] 高宇.中国典型红树林湿地沉积物碳库分布特征及控制因子研究[D]. 北京:清华大学, 2019.
[12] Lamb A L, Wilson G P, Leng M J. A review of coastal palaeoclimate and relative sea-level reconstructions using δ¹³C and C/N ratios in organic material [J]. Earth-Science Reviews, 2006,75(1-4):29-57.
[13] 薛博.漳江口红树林湿地沉积物有机质来源追溯[D]. 厦门:厦门大学, 2007. Xue B. Tracing the Sources of Organic Matter in Sediments of the Zhangjiangkou Mangrove Wetland [D]. Xiamen: Xiamen University, 2007.
[14] 季宁宁,刘永,王圣瑞.洱海悬浮颗粒物和表层沉积物有机碳氮同位素来源特征及水质指示意义[J]. 湖泊科学, 2022,34(1):118-133. Ji N N, Liu Y, Wang S G. Source Characteristics of Organic Carbon and Nitrogen Isotopes in Suspended Particulate Matter and Surface Sediments of Erhai Lake and Their Implications for Water Quality [J]. Journal of Lake Sciences, 2022,34(1):118-133.
[15] 王毛兰,赖建平,胡珂图,等.鄱阳湖表层沉积物有机碳、氮同位素特征及其来源分析[J]. 中国环境科学, 2014,34(4):1019-1025. Wang M L, Lai J P, Hu K T, et al. Characteristics and Source Analysis of Organic Carbon and Nitrogen Isotopes in Surface Sediments of Poyang Lake [J]. China Environmental Science, 2014,34(4):1019- 1025.
[16] Nery J R C, Bonotto D M. The constant flux and constant sedimentation (CF:CS) ²¹⁰Pb chronological method applied to determine sedimentation rates at Amazon River watershed, Brazil [J]. Journal of South American Earth Sciences, 2022,114:103715.
[17] 朱耀军,赵峰,郭菊兰,等.湛江高桥红树林湿地有机碳分布及埋藏特征[J]. 生态学报, 2016,36(23):7841-7849. Zhu Y J, Zhao F, Guo J L, et al. Distribution and Burial Characteristics of Organic Carbon in the Gaoqiao Mangrove Wetland of Zhanjiang [J]. Acta Ecologica Sinica, 2016,36(23):7841-7849.
[18] 王秀君,章海波,韩广轩.中国海岸带及近海碳循环与蓝碳潜力[J]. 中国科学院院刊, 2016,31(10):1218-1225. Wang X J, Zhang H B, Han G X. Carbon Cycle and Blue Carbon Potential in Coastal and Offshore Areas of China [J]. Bulletin of the Chinese Academy of Sciences, 2016,31(10):1218-1225.
[19] 徐慧鹏.广西典型红树林沉积与碳埋藏特征及其扩张历史研究[D]. 南宁:广西大学, 2020. Xu H P. Study on Sedimentation and Carbon Burial Characteristics and Expansion History of Typical Mangroves in Guangxi [D]. Nanning: Guangxi University, 2020.
[20] 白亚之,乔淑卿,吴斌,等.泰国湾百年来有机碳埋藏记录及环境响应[J]. 沉积学报, 2022,40(2):484-493. Bai Y Z, Qiao S Q, Wu B, et al. Organic Carbon Burial Records and Environmental Responses in the Gulf of Thailand over the Past Century [J]. Acta Sedimentologica Sinica, 2022,40(2):484-493.
[21] 李燕,赵志忠,王鸿平,等.海南东寨港红树林湿地沉积物有机碳的分布特征[J]. 安徽农业大学学报, 2018,45(2):268-273. Li Y, Zhao Z Z, Wang H P, et al. Distribution Characteristics of Organic Carbon in Sediments of the Dongzhai Port Mangrove Wetland in Hainan [J]. Journal of Anhui Agricultural University, 2018,45(2): 268-273.
[22] 张乔民,温孝胜,宋朝景,等.红树林潮滩沉积速率测量与研究[J]. 热带海洋, 1996,(4):57-62. Zhang Q M, Wen X S, Song C J, et al. Measurement and Study of Sedimentation Rates in Mangrove Tidal Flats [J]. Tropical Ocean, 1996,(4):57-62.
[23] Ding H, Yao S, Chen J. Authigenic pyrite formation and re-oxidation as an indicator of an unsteady-state redox sedimentary environment: Evidence from the intertidal mangrove sediments of Hainan Island, China [J]. Continental Shelf Research, 2014,78:85-99.
[24] 潘大东,张良荟,林永崇.九龙江口潮滩表层沉积物有机质的分布、来源及沉积环境指示意义[J]. 海洋学报, 2023,45(2):85-97. Pan D D, Zhang L H, Lin Y C. Distribution, Sources, and Sedimentary Environment Indication Significance of Organic Matter in Surface Sediments of Jiulong River Estuary Tidal Flats [J]. Acta Oceanologica Sinica, 2023,45(2):85-97.
[25] 林秋莲.红树植物地上/地下根系对滩面高程的影响[D]. 厦门:厦门大学, 2019. Lin Q L. The Impact of Aboveground/Underground Root Systems of Mangrove Plants on Tidal Flat Elevation [D]. Xiamen: Xiamen University, 2019.
[26] 卫东,戴万宏,汤佳.不同利用方式下土壤溶解性有机碳含量研究[J]. 中国农学通报, 2011,27(18):121-124. Wei D, Dai W H, Tang J. Study on the Content of Soil Dissolved Organic Carbon under Different Land Use Patterns [J]. Chinese Agricultural Science Bulletin, 2011,27(18):121-124.
[27] 陈志明.浙南茅埏岛红树林种植与滩涂生态系统修复[J]. 海洋开发与管理, 2016,33(4):40-44. Chen Z M. Mangrove Planting and Tidal Flat Ecosystem Restoration in Maoyan Island, Southern Zhejiang [J]. Marine Development and Management, 2016,33(4):40-44.
[28] Jennerjahn T C, Ittekkot V. Relevance of mangroves for the production and deposition of organic matter along tropical continental margins [J]. Naturwissenschaften, 2002,89:23-30.
[29] Adame M F, Lovelock C E. Carbon and nutrient exchange of mangrove forests with the coastal ocean [J]. Hydrobiologia, 2011,663: 23-50.
[30] Boschker H, De Brouwer J, Cappenberg T. The contribution of macrophyte-derived organic matter to microbial biomass in salt-marsh sediments: Stable carbon isotope analysis of microbial biomarkers [J]. Limnology and Oceanography, 1999,44(2):309-319.
[31] 李海宏,江旷,鲍毅新,等.茅埏岛不同生境大型底栖动物生物多样性[J]. 生态学杂志, 2015,34(3):765-772. Li H H, Jiang K, Bao Y X, et al. Biodiversity ofLi Haihong, Jiang Kuang, Bao Yixin, et al. Biodiversity of Macrobenthos in Different Habitats of Maoqian Island [J]. Chinese Journal of Ecology, 2015,34(3):765-772.
[32] 刘静,马克明,曲来叶.广东湛江红树林国家级自然保护区优势乔木群落的物种组成及结构特征[J]. 生态科学, 2016,35(3):1-7. Liu J, Ma K M, Qu L Y. Species Composition and Structural Characteristics of Dominant Tree Communities in the Zhanjiang Mangrove National Nature Reserve, Guangdong [J]. Ecological Science, 2016,35(3):1-7.
[33] 褚冠宇.基于风暴潮记录的广西红树林沉积与碳埋藏特征及脆弱性研究[D]. 南宁:广西大学, 2021. Chu G Y. Study on Sedimentation, Carbon Burial Characteristics, and Vulnerability of Mangroves in Guangxi Based on Storm Surge Records [D]. Nanning: Guangxi University, 2021.
[34] Chen L, Zeng X, Tam N F, et al. Comparing carbon sequestration and stand structure of monoculture and mixed mangrove plantations of Sonneratia caseolaris and S. apetala in Southern China [J]. Forest Ecology and Management, 2012,284:222-229.
[35] Liu X, Xiong Y, Liao B. Relative contributions of leaf litter and fine roots to soil organic matter accumulation in mangrove forests [J]. Plant and Soil, 2017,421:493-503.
[36] Bassar A Z, Dannoura M, Okada N, et al. Fine root dynamics of Kandelia obovata, Rhizophora stylosa and Bruguiera gymnorrhiza in a mangrove environment in Okinawa, Japan [J]. Regional Studies in Marine Science, 2023,64:103046.
[37] 胡懿凯,朱宁华,廖宝文,等.淇澳岛不同恢复类型红树林碳密度及固碳速率研究[J]. 中南林业科技大学学报, 2019,39(12):101-107. Hu Y K, Zhu N H, Liao B W, et al. Study on Carbon Density and Carbon Sequestration Rate of Different Restoration Types of Mangroves on Qi’ao Island [J]. Journal of Central South University of Forestry & Technology, 2019,39(12):101-107.
[38] 覃国铭,张靖凡,周金戈,等.广东省红树林土壤碳储量及固碳潜力研究[J]. 热带地理, 2023,43(1):23-30. Qin G M, Zhang J F, Zhou J G, et al. Study on Soil Carbon Storage and Carbon Sequestration Potential of Mangroves in Guangdong Province [J]. Tropical Geography, 2023,43(1):23-30.