| 长江口南支岛屿沙洲湿地陆向发育过程中表层沉积物有机碳变化 |
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| 引用本文： | 梅雪英,张修峰.长江口南支岛屿沙洲湿地陆向发育过程中表层沉积物有机碳变化[J].长江流域资源与环境,2011,20(6):685. |
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| 作者姓名： | 梅雪英 张修峰 |
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| 作者单位： | （1. 安徽农业大学资源与环境学院, 安徽 合肥 230036,2.暨南大学水生生物研究所, 广东 广州 510632） |
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| 基金项目： | 暨南大学青年基金(51208026) |
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| 摘 要： | 通过对白茆沙、扁担沙、中央沙、九段沙和崇明岛等长江口南支湿地表层沉积物有机碳含量的测定，研究河口岛屿沙洲湿地陆向发育过程中表层沉积物有机碳变化。结果得出：长江口南支岛屿沙洲湿地陆向发育过程中，表层沉积物有机碳含量逐步增加。处在发育前期的岛屿沙洲湿地，表层沉积物有机碳含量低，如白茆沙仅1057%，随着岛屿沙洲的发育，表层沉积物有机碳含量逐渐升高，如发育较为成熟的崇明东滩湿地达3176%；另外，从高程较低的光滩到发育较为成熟的芦苇带，表层沉积物有机碳含量也逐渐增加，其中芦苇带的含量最高（3004%），海三棱藨草带次之（1812%），光滩较低（1436%）；再者，随着岛屿沙洲湿地的陆向发育，其表层沉积物有机碳分布越来越不均匀，也说明了岛屿沙洲陆向发育过程中表层沉积物有机碳含量的变化趋势。这表明河口岛屿沙洲湿地陆向演变过程中，表层沉积物发挥着积极的有机碳汇聚功能
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| 关 键 词： | 长江口 湿地 沉积物 有机碳 含量 |
ORGANIC CARBON IN SURFACE SEDIMENTS OF ISLAND WETLANDS DEVELOPING TO LAND IN SOUTH BRANCH OF CHANGJING RIVER ESTUARY |
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| MEI Xue-ying,ZHANG Xiu-feng.ORGANIC CARBON IN SURFACE SEDIMENTS OF ISLAND WETLANDS DEVELOPING TO LAND IN SOUTH BRANCH OF CHANGJING RIVER ESTUARY[J].Resources and Environment in the Yangtza Basin,2011,20(6):685. |
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| Authors: | MEI Xue-ying ZHANG Xiu-feng |
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| Institution: | (1.College of Resources and Environment, Anhui Agricultural University, Hefei 230036, China; |2. Institute of Hydrobiology, Jinan University, Guangzhou 510632, China |
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| Abstract: | The Yangtze River estuary is one of the largest estuaries in the world.Baimaosha,Biandansha,Zhongyangsha,Jiuduansha and Chongming island have been formed by rapid sedimentation in different stages of the estuary development.As sedimentation has progressed,there are associated changes in organic carbon content in the surface sediments.Few previous research has been completed on organic carbon concentrations in surface sediments of the estuary islands in relation to the growth of the island wetlands.This rese... |
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| Keywords: | Changjiang estuary wetland sediment organic carbon content |
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