南京大学学报(自然科学版) ›› 2018, Vol. 54 ›› Issue (3): 655–664.

• • 上一篇    

米草引种对潮滩沉积物有机质的贡献及碳埋藏的影响

黄梅1,2,3，葛晨东1,2,3*，左平1,2,3，纪振强1,2,3，方文丽1,2,3，周孟洋1,2,3   

  • 出版日期:2018-05-23 发布日期:2018-05-23
  • 作者简介:1.南京大学 地理与海洋科学学院，江苏 南京 210023；2.南京大学 海岸与海岛开发教育部重点实验室，江苏 南京 210023；3.南京大学 江苏省海岸与海岛开发重点实验室, 江苏 南京 210023
  • 基金资助:
    国家自然科学基金（41473001），国家重大科学研究计划（2013CB956504），江苏省自然科学基金（BK20130056）

The contribution of Spartina introduction on organic matter source and its effects on carbon burial in tidal flats

Huang Mei1,2,3, Ge Chendong1,2,3, Zuo Ping1,2,3, Ji Zhenqiang1,2,3, Fang Wenli1,2,3, Zhou Mengyang1,2,3   

  • Online:2018-05-23 Published:2018-05-23
  • About author:1.School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210023, China; 2. Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210023, China; 3. Jiangsu Provincial Key Laboratory of Coast and Island Development, Nanjing University, Nanjing 210023, China

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摘要： 米草（Spartina）为C4光合作用类型植物。上个世纪60年代以来的引种有效地改变了我国滨海潮滩的生态系统，使潮滩沉积物有机质的来源发生了变化，从而引起沉积物有机碳同位素的值发生明显变化。定量分析前后潮滩的碳埋藏量变化，有助于合理预测潮滩蓝碳的埋藏潜力，为我国的蓝碳调查与评估提供重要依据。文章通过分析苏北王港潮滩的互花米草滩（DF01孔）、过渡滩（DF02孔）和光滩（DF03孔）三处的柱状沉积物有机碳（TOC）含量和有机碳同位素（δ13C）的值，得到如下结论：①米草滩DF01孔沉积物地球化学特征随深度变化可分为两段，168 cm以下为粗颗粒、TOC平均含量为0.13%，有机碳δ13C平均值为-28.05‰；168~0 cm沉积物颗粒变细，从4.88Φ变化到7.74Φ、TOC含量从0.17%增大到0.88%，δ13C的值不断增大，到表层达到-21.89‰，说明潮滩沉积物有机质中米草的贡献明显。② 根据米草滩柱状样沉积物δ13C变化深度，结合王港潮滩米草的引种时间1982年，估算得出该地的沉积速率为4.94 cm/a。进一步得出米草引种以来有机碳的埋藏速率约为311.0 g?m-2?a-1，引种之前约为45.1g?m-2?a-1。米草引种之后有机碳埋藏速率为引种之前的7倍，米草的引种大大增加了潮滩的蓝碳埋藏能力。

Abstract: The plantation of Spartina has changed the ecological system of coastal tidal flats in China, which resulted in the changes of the organic matter sources in tidal flat sediments. Spartina is a kind of C4 plants. The records would be very obvious in the sediment organic carbon isotope value. Quantitative analysis of the contribution of Spartina introduction on carbon buried has the significance to evaluate the blue carbon burial in tidal flats. Based on the analysis of sediment organic carbon (TOC) and organic carbon isotope (δ13C) in 3 Cores of DF01, DF02 and DF03, which were collected from the Spartina alterniflora tidal flats, the transition area between bare and Spartina alterniflora tidal flats and the bare tidal flats in Wanggang, Jiangsu Province respectively, we can get the following conclusion: (1) The biogeochemical characteristics of sediments in Core DF01 can be divided into two sections with depths. In the lower part, the sediment grain size is obviously coarse under the depth of 168cm. The TOC content and the δ13C value are quite stable, with the average of 0.13% and -28.05‰ separately. In the upper part, from the surface to the depth of 168cm, the grain size became finer. The content of organic carbon increased from 0.17% to 0.88% upward gradually, δ13C value increased to -21.89‰ at surface. This result indicated that Spartina (as one of C4 plants) has obvious contribution to sediment organic matter since the depth of 168 cm. (2) Combined the initial depth affected by Spartina introduction and the time when it planted in Wanggang tidal flats in 1982, the deposition rate could be evaluated as 4.94 cm/a. The average buried rate of TOC was about 311.0 g?m-2?a-1 since the introduction, while it was 45.1g?m-2? a-1 before the introduction. The introduction of Spartina significantly increased the organic carbon burial flux in tidal flats.

[1]陈健健, 何文珊, 童春富, 等. 湿地生态学.北京：高等教育出版社. 2006.48-52.（Chen J J, He W S, Tong C F, et al. Wetland ecology. Beijing: Higher Education Press. 2006.48-52. [2] Yonghoon C, Yang W. Dynamics of carbon sequestration in a coastal wetland using radiocarbon measurements. Global Biogeochemical Cycles, 2012, 18(18):133-147. [3]曹磊, 宋金明,李学刚,等. 滨海盐沼湿地有机碳的沉积与埋藏研究进展. 应用生态学报, 2013, 24(7):2040-2048. (Cao L, Song J M, Li X G, et al. Deposition and burial of organic carbon in coastal salt marsh: Research progress. Chinese Journal of Applied Ecology, 2013, 24(7):2040-2048.) [4] Brix H, Sorrell B K, Lorenzen B. Are Phragmites-dominated wetlands a net source or net sink of greenhouse gases?. Aquatic Botany, 2001, 69(2):313-324. [5]梅雪英, 张修峰. 崇明东滩湿地自然植被演替过程中储碳及固碳功能变化. 应用生态学报, 2007, 18(04):933-936. (Mei X Y, Zhang X F. Carbon storage and carbon fixation during the succession of natural vegetation in wetland ecosystem on east beach of Chongm ing Island [J]. Chinese Journal of Applied Ecology, 2007, 18(04):933-936.) [6] Chmura, Gail L, Anisfeld, Shimon C, Cahoon, Donald R, et al. Global carbon sequestration in tidal, saline wetland soils. Global Biogeochemical Cycles, 2003, 17(4):22-1. [7]王颖, 朱大奎. 中国的潮滩. 第四纪研究, 1990, 10(4):291-300. (Wang Y, Zhu D K. Tidal flats of china. Quaternary Sciences, 1990, 10(4):291-300. [8]仲崇信,卓荣宗,周鸿彬等. 大米草（Spartina anglica Hubbard）种栽培实验及其改土效果[A].米草研究的进展-22 年来的研究成果论文集. 南京:南京大学出版社,1985. (Zhong C X, Zhuo R Z, Zhou H B, et al. Experiment of Spartina anglica Hubbard planting and its effect on soil modification. A collection of research achievements in the past 22 years in the research of Spartina anglica Hubbard. Nanjing: Nanjing University Press,1985.) [9]左平, 刘长安, 赵书河,等. 米草属植物在中国海岸带的分布现状. 海洋学报, 2009, 31(5):101-111. (Zuo P, Liu C A, Zhao S H, et al. Distribution of Spartina plantations along the China’s coast[J]. Haiyang Xuebao, 2009, 31(5):101-111. [10]沈永明, 张忍顺, 王艳红. 互花米草盐沼潮沟地貌特征. 地理研究, 2003, 22(4):520-527. (Shen Y M, Zhang R S, Wang Y H. The tidal creek character in salt marsh of Spartina alterniflora Loisel on strong tide coast. Geographical Research,2003, 22(4):520-527. [11] 谢文静, 高抒. 江苏中部海岸互花米草盐沼底栖动物的组成特征. 南京大学学报(自然科学), 2009, 45(4):553-560. (Xie W J, Gao S. Composition of the benthic macrofauna in the Spartina alterniflorea salt-marshes in the Wanggang area, central Jiangsu coast, eastern China. Nanjing University (Natural Sciences),, 2009, 45(4):553-560.) [12]王爱军, 汪亚平, 杨旸. 江苏王港潮间带表层沉积物特征及输运趋势. 沉积学报, 2004, 22(1):124-129. (Wang A J, Wang Y P, Yang Y. Surface Sediment Characteristics and Transport Trends on the Wanggang Intertidal Flat, Jiangsu Province. Acta Sedimentologica Sinica, 2004, 22(1):124-129.) [13] 王爱军, 高抒, 贾建军. 互花米草对江苏潮滩沉积和地貌演化的影响. 海洋学报, 2006, 28(1):92-99. (Wang A J, Gao S, Jia J J. Impact of Spartina alterniflora on sedimentary and morphological evolution of tidal salt marshes of Jiangsu, China. Haiyang Xuebao, 2006, 28(1):92-99.) [14]杨旸, 汪亚平, 高抒. 江苏王港盐沼潮沟的水动力和悬沙输运过程. 海洋地质与第四纪地质, 2003, 23(4):23-28. (Yang Y, Wang A J, Gao S. Hydrodynamic processes and suspended sediment transport in the sait-marsh creeks, Wanggang, Jiangsu. Marine Geology & Quaternary Geology, 2003, 23(4):23-28. [15]张忍顺, 沈永明, 陆丽云,等. 江苏沿海互花米草(Spartina alterniflora)盐沼的形成过程. 海洋与湖沼, 2005, 36(4):358-366. (Zhang R S, Shen Y M, Lu L Y, et al. Formation of Spartina alterniflora salt marsh on Jiangsu coast, China. Oceanologia et Limnologia Sinica, 2005, 36(4):358-366.) [16]关道明, 刘长安, 左平,等. 中国滨海湿地米草盐沼生态系统与管理. 海洋出版社, 2009. (Guan D M, Liu C A, Zuo P, et al. Ecological system and management of Spartina salt marsh in coastal wetland of China. Ocean press,2009.) [17]商栩, 管卫兵, 张国森,等. 互花米草入侵对河口盐沼湿地食物网的影响. 海洋学报, 2009, 31(1):132-142. (Shang X, Guan W B, Zhang G S, et al. The impact of invasion of Spartina alterniflora on the food webs of estuarine salt marshes. Haiyang Xuebao, 2009, 31(1):132-142. [18]高建华, 杨桂山, 欧维新. 互花米草引种对苏北潮滩湿地TOC、TN和TP分布的影响. 地理研究, 2007, 26(4):799-808. (Gao J H, Yang G S, Ou W X. The influence after introduction of Spartina alterniflora on the distribution of TOC, TN and TP in the national Yancheng rare birds nature reserve, Jiangsu Province, China. Geographical Research, 2007, 26(4):799-808.) [19] Zhang Y H, Ding W X, Luo J F, et al. Changes in soil organic carbon dynamics in an Eastern Chinese coastal wetland following invasion by a C4 plant Spartina alterniflora. Soil Biology & Biochemistry, 2010, 42(10):1712-1720. [20] Li B, Liao C H, Zhang X D, et al. Spartina alterniflora, invasions in the Yangtze River estuary, China: An overview of current status and ecosystem effects. Ecological Engineering, 2009, 35(4):511-520. [21] 王刚, 杨文斌, 王国祥,等. 互花米草海向入侵对土壤有机碳组分、来源和分布的影响. 生态学报, 2013, 33(8):2474-2483. (Wang G, Yang W B, Wang G X, et al. The effects of Spartina alterniflora seaward invasion on soil organic carbon fractions, sources and distribution. Acta Ecologica Sinica, 2013, 33(8):2474-2483. [22]Fontugne M R, Jouanneau J M. Modulation of the particulate organic carbon flux to the ocean by a macrotidal estuary: Evidence from measurements of carbon isotopes in organic matter from the Gironde system. Estuarine Coastal & Shelf Science, 1987, 24(3):377-387. [23] S. Emerson, J. I. Hedges. Processes controlling the organic carbon content of open ocean sediments. Paleoceanography, 1988, 3(5):621–634. [24] Meyers P A. Preservation of elemental and isotopic source identification of sedimentary organic matter. Chemical Geology, 1994, 144(3–4):289-302. [25] Gao S. Sediment and Carbon Accumulation on Continental Shelves1 .Carbon and Nutrient Fluxes in Continental Margins. 2010:587-596. [26] Gao S, Jia J J. Sediment and carbon accumulation in a small tidal basin: Yuehu, Shandong Peninsula, China. Regional Environmental Change, 2004, 4(1):63-69. [27]陈才俊. 江苏滩涂大米草促淤护岸效果. 海洋通报, 1994(2):55-61. (Chen C J. Effect of increasing deposition and defending seashore by planting spartina anglica on beach in Jiangsu province. Marine Science Bulletin, 1994(2):55-61. [28]王爱军. 人工引种米草对江苏王港潮滩沉积和地貌演化的影响. 南京：南京大学, 2004. (Wang A J. Effect of artificial introduction Spartina in wanggang tidal flat of Jiangsu Province on sedimentary and geomorphic evolution. Nanjing: Nanjing university, 2004.) [29]高抒, 朱大奎. 江苏淤泥质海岸剖面的初步研究. 南京大学学报:自然科学版, 1988(1):77-86. (Gao S, Zhu D K. The profile of Jiangsu’s mud coast. Nanjing University (Natural Sciences), 1988(1):77-86. [30]王爱军, 高抒, 贾建军,等. 江苏王港盐沼的现代沉积速率. 地理学报, 2005, 60(1):61-70. (Wang A J, Gao S, Jia J J, et al. Contemporary Sedimentation Rates on Salt Marshes at Wanggang, Jiangsu, China. Acta Geographica Sinica, 2005, 60(1):61-70. [31]于文金, 邹欣庆, 朱大奎,等. 江苏王港潮滩重金属Pb、Zn和Cu的累积规律. 海洋地质与第四纪地质, 2007, 27(3):17-24. (Yu W J, Zou X Q, Zhu D K, et al. Accumulation of heavy metals Pb, Zn and Cu in Wanggang tidal flat of Jiangsu province. Marine Geology & Quaternary Geology, 2007, 27(3):17-24. [32]徐国万, 卓荣宗. 我国引种互花米草(Spartina alterniflora Loisel)的初步研究. 南京大学学报, 1985, 40(2): 212-225. (Xu W G, Zhuo R Z. A preliminary study on the introduction of Spartina alterniflora Loisel in China. Nanjing University, 1985, 40(2): 212-225. [33]Liao C, Luo Y, Jiang L, et al. Invasion of Spartina alterniflora Enhanced Ecosystem Carbon and Nitrogen Stocks in the Yangtze Estuary, China[J]. Ecosystems, 2007, 10(8):1351-1361. [34] Mcleod E, Chmura G L, Bouillon S, et al. A blueprint for blue carbon: toward an improved understanding of the role of vegetated coastal habitats in sequestering CO2[J]. Frontiers in Ecology & the Environment, 2011, 9(10):552-560.
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