广西钦州湾百年来红树林演变的有机碳同位素和孢粉示踪及其影响因素

夏鹏; 孟宪伟; 平爱平; 李珍

doi:10.3969/j.issn.0253-4193.2015.03.008

广西钦州湾百年来红树林演变的有机碳同位素和孢粉示踪及其影响因素

doi: 10.3969/j.issn.0253-4193.2015.03.008

1.
国家海洋局第一海洋研究所, 山东青岛 266061;
2.
华东师范大学河口海岸学国家重点实验室, 上海 200062

基金项目: 国家自然科学基金(41206057,41376075);973计划(2010CB951203);中央级公益性科研院所基本科研业务费专项资金(2012G18);国家海洋局青年基金(2013326)。

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出版历程
- 收稿日期: 2014-02-26

Historical retrospection on mangrove development using stable carbon isotopes and pollen analysis,and its response to climate change and human activity

1.
First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;
2.
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China

摘要

摘要: 气候变化和人类活动制约下的红树林演变是一种长时间尺度效应,而沉积物则是记录这种响应的最佳档案。采用古生态学研究思路,选择有效的示踪参数是解读这一档案的有效途径。本文通过广西钦州湾红树林区1根柱状沉积物中有机碳同位素(δ¹³C)、C/N分析和孢粉鉴定,以沉积物中的红树林源有机碳贡献和红树植物孢粉组合为示踪参数,在²¹⁰Pb年龄框架构建的基础上,通过对比研究红树林源有机碳贡献和红树孢粉组合特征,揭示百年来钦州湾红树林兴衰和群落演替规律;进而重塑其红树林演变历史:兴盛期(1864-1918年)、衰退期(1918-1968年)和低谷期(1968-2007年),这与土地替代、遥感分析和现场勘测数据较为吻合。结合气候变化和人类活动资料,发现钦州湾红树林的近期衰退主要源于人类活动的影响,尤其是虾塘围垦;而与气候变化关系不大。
- 红树林 /
- 有机碳同位素 /
- 孢粉 /
- 气候变化 /
- 人类活动
Abstract: Mangrove evolution is the long time-scale process under the condition of climate change and human activity,and is clearly recorded by the surrounding sediments. It is a new palaeoecological approach to trace mangrove evolution using organic carbon isotopes and mangrove pollen from sedimentary records. In the study,a sediment core was collected from a mangrove swamp of the Qinzhou Bay,Guangxi. Based on the three end-number model,δ¹³C and C/N analysis were used to calculate the contribution of mangrove-derived organic carbon. Compared with mangrove pollen assemblage and ²¹⁰Pb dating,it revealed the temporal evolution of mangrove development and its community succession in the recent 150 years. The mangrove evolution could be divided into three major stages: flourish (1864-1918 A.D.),degradation (1918-1968 A.D.) and low-level period (1968-2007 A.D.),which was consistent with the previous reports. An significantly degradation in mangrove ecosystem recently corresponded to the increase of reclamation area (especially for the shrimp-pond reclamation) and artificial seawalls,rather than the climate change as recorded in the region.
- mangrove /
- carbon /
- isotope /
- pollen /
- climate change

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参考文献(38)

Clough B. Mangrove forest productivity and biomass accumulation in Hinchinbrook Channel,Australia[J]. Mangroves and Salt Marshes,1998,2: 191-198.

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.

Alongi D M. The dynamics of benthic nutrient pools and fluxes in tropical mangrove forests[J]. Journal of Marine Research,1996,54: 123-148.

Lee S Y. Mangrove outwelling: a review[J]. Hydrobiologia,1995,295: 203-212.

Valiela I,Cole M L. Comparative evidence that salt marshes and mangroves may protect seagrass meadows from land-derived nitrogen loads[J]. Ecosystems,2002,5: 92-102.

Alongi D M. Mangrove forests: resilience,protection from tsunamis,and responses to global climate change[J]. Estuarine,Coastal and Shelf Science,2008,76: 1-13.

Chong V C,Low C B,Ichikawa T. Contribution of mangrove detritus to juvenile prawn nutrition: a dual stable isotope study in a Malaysian mangrove forest[J]. Marine Biology,2001,138: 77-86.

Valiela I,Bowen J L,York J K. Mangrove forests: one of the worlds threatened major tropical environments[J]. Bioscience,2001,51: 807-815.

Kristensen E,Bouillon S,Dittmar T,et al. Organic carbon dynamics in mangrove ecosystems: A review[J]. Aquatic Botany,2008,89: 201-219.

Bouillon S,Connolly R M,Lee S Y. Organic matter exchange and cycling in mangrove ecosystems: recent insights from stable isotope studies[J]. Journal of Sea Research,2008,59: 44-58.

Ellison J C. Long-term retrospection on mangrove development using sediment cores and pollen analysis: A review[J]. Aquatic Botany,2008,89: 93-104.

Graham M C,Eaves M A,Farmer J G,et al. A study of carbon and nitrogen stable isotope and elemental ratios as potential indicators of source and fate of organic matter in sediments of the Forth Estuary,Scotland[J]. Estuarine,Coastal and Shelf Science,2001,52: 375-380.

Yamamuro M. Chemical tracers of sediment organic matter origins in two coastal lagoons[J]. Journal of Marine Systems,2000,26: 127-134.

Fourqurean J W,Schrlau J E. Changes in nutrient content and stable isotope ratios of C and N during decomposition of seagrasses and mangrove leaves along a nutrient availability gradient in Florida Bay,USA[J]. Chemistry and Ecology,2003,19,373-390.

De Boer W. Biomass dynamics of seagrasses and the role of mangrove and seagrass vegetation as different nutrient sources for an intertidal ecosystem [J]. Aquatic Botany,2000,66: 225-239.

Holmer M,Olsen A B. Role of decomposition of mangrove and seagrass detritus in sediment carbon and nitrogen cycling in a tropical mangrove forest[J]. Marine Ecology Progress Series,2002,230: 87-101.

Wooller M J,Swain D L,Ficken K J,et al. Late Quaternary vegetation changes around Lake Rutundu,Mount Kenya,East Africa: evidence from grass cuticles,pollen and stable carbon isotopes[J]. Journal of Quaternary Science,2003,18(1): 3-15.

Ficken K J,Wooller M J,Swain D L,et al. Reconstruction of a sub-alpine grassdominated ecosystem,Lake,Rutundu,Mount Kenya: a novel multi-proxy approach[J]. Palaeogeography,Palaeoclimatology,Palaeoecology,2002,177: 137-150.

San Miguel E G,Bolívar J P,García-tenorio R. Vertical distribution of Th-isotope ratios,²¹⁰Pb,²²⁶Ra and ¹³⁷Cs in sediment cores from an estuary affected by anthropogenic releases[J]. Science of the Total Environment,2004,318: 143-157.

李贞,李珍,张卫国,等. 广西钦州湾海岸带孢粉组合和沉积环境演变[J]. 第四纪研究,2010,30(3): 598-608. Li Zhen, Li Zhen, Zhang Weiguo, et al. Pollen assemblage and sedimentary environment evolution in the coastal zone in Qinzhou Bay, Guangxi province[J]. Quaternary Sciences, 2010, 30: 598-608.

王伏雄,钱南芬,张玉龙,等. 中国植物花粉形态[M]. 北京: 科学出版社,1995. Wang Fuxiong, Qian Nanfen, Zhang Yulong, et al. Pollen morphology of Chinese plant[M]. Beijing: Science Press, 1995.

Grimm E C. Coniss: A Fortran 77 program forstratigra phically constrained cluster analysis by method of incremental sum of squares[J]. Computers & Geosciences,1987,13: 13-35.

刘建军,吴敬禄. 太湖大浦湖区近百年来湖泊记录的环境信息[J]. 古地理学报,2006,8(4): 559-564. Liu Jianjun, Wu Jinglu. Environmental information of recent 100 years recorded sediments of Dapu area in Taihu Lake[J]. Journal of palaeogeography, 2006, 8: 559-564.

Van Der Kaars S. Pollen distribution in marine sediments from the south-eastern Indonesian waters[J]. Palaeogeography,Palaeoclimatology,Palaeoecology,2001,171: 341-361.

Hooghiemstra H,Lézine A M,Leroy S A G,et al. Late Quaternary palynology in marine sediments: A synthesis of the understanding of pollen distribution patterns in the NW African setting[J]. Quaternary International,2006,148: 29-44.

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: 124-132.

Kwak T J,Zedler J B. Food web analysis of southern California coastal wetlands using multiple stable isotopes[J]. Oecologia,1997,110(2): 262-277.

Mutchler T,Dunton K H,Townsend-small A,et al. Isotopic and elemental indicators of nutrient sources and status of coastal habitats in the Caribbean Sea,Yucatan Peninsula,Mexico[J]. Estuarine Coastal and Shelf Sciences,2007,74: 449-457.

Savage C. Tracing the influence of sewage nitrogen in a coastal ecosystem using stable nitrogen isotopes[J]. Ambio,2005,34(2): 145-150.

Gonneeaa M E,Paytana A,Herrera-silveira J A. Tracing organic matter sources and carbon burial in mangrove sediments over the past 160 years[J]. Estuarine,Coastal and Shelf Science,2004,61: 211-227.

Rao R G,Woitchik A F,Goeyens L,et al. Carbon,nitrogen contents and stable carbon isotope abundance in mangrove leaves from an East-African coastal lagoon (Keyna)[J]. Aquatic Botany,1994,7: 175-183.

He B,Dai M,Huang W,et al. Sources and accumulation of organic carbon in the Pearl River Estuary surface sediment as indicated by elemental,stable carbon isotopic,and carbohydrate compositions[J]. Biogeosciences,2010,7: 3343-3362.

侯秀琼. 流沙湾海洋生物稳定碳氮同位素应用的初步研究 [D]. 湛江: 广东海洋大学,2009: 16-17. Hou Xiuqiong. Preliminary study on marine species in Liusha Bay by using stable carbon and nitrogen isotopes [D]. Zhanjing: Guangdong Ocean University, 2009, 16-17.

Dittmar T,Lara R J,Kattner G. River or mangrove? Tracing major organic matter sources in tropical Brazilian coastal waters[J]. Marine Chemistry,2001,73: 253-271.

Yamamuro M,Kayanne H. Rapid direct determination of organic carbon and nitrogen in carbonate-bearing sediments with a Yanaco MT-5 CHN analyzer[J]. Limnology and Oceanography,1995,40(5): 1001-1005.

范航清. 广西海岸红树林现状及人为干扰[M]//范航清,梁士楚. 中国红树林研究与管理. 北京: 科学出版社,1995. Fan Hangqing. Mangroves status and factitious disturbance in the coast of Guangxi[M]//Mangroves Study and Management in China. Beijing: Science Press, 1995, 189-202.

黄鹄,戴志军,胡自宁,等. 广西海岸环境脆弱性研究[M]. 北京: 海洋出版社,2005. Huang Hao, Dai Zhijun, Hu Zining, et al. Study on the coastal environmental vulnerability in Guangxi[M]. Beijing: China Ocean Press, 2005.

Mantua N J,Hare S R,Zhang Y,et al. A Pacific decadal climate oscillation with impacts on salmon [J]. Bulletin of the American Meteorological Society,1997,78: 1069-1079.

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