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首页> 外文期刊>Ocean & coastal management >Variations in tidal flats of the Changjiang (Yangtze) estuary during 1950s-2010s: Future crisis and policy implication
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Variations in tidal flats of the Changjiang (Yangtze) estuary during 1950s-2010s: Future crisis and policy implication

机译：1950年代至2010年代长江（长江）河口滩涂变化：未来危机和政策含义

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摘要

Tidal flat, is a critical natural resource for coastal ecosystem and plays a tremendous role in coastal sustainable development. However, most tidal flats in the world are facing serious challenges from both natural change and anthropogenic activities. Based on the multi-year monitoring records of tidal flats in the Changjiang (Yangtze) Estuary, the temporal-spatial changes of tidal flats and possible driving factors were statistically examined. The results indicate that the increased rate of the majority of tidal flats in the Changjiang Estuary has become slow since 2000s. Tidal flats of both Hengsha and Jiuduan Shoal showed minor enlarged trends from 2004 to 2009. However, Tidal flat areas of Nanhui Shoal above 0 m had greatly decreased by 80.8% from 1958 to 2012. Even though estuarine hydraulic engineering structures can mitigate tidal flats decreased trends, the tidal flats of the Changjiang Estuary will still suffer significant losses due to the decreasing sediment flux from upstream, ground subsidence, sea level rise and recent intensive reclamation. Thereafter, the adaptive management strategies for sustainable tidal flat resources of the Changjiang Estuary are as follows: (1) Proceeding comprehensive adjustment involving watershed and estuary; (2) keeping balance between reclamation and rebirth of tidal flats; (3) coping with sea level rise; (4) scientifically promoting aggradation of tidal flats. (C) 2014 Elsevier Ltd. All rights reserved.
机译：滩涂是沿海生态系统的重要自然资源，在沿海可持续发展中发挥着巨大作用。但是，世界上大多数潮滩都面临着自然变化和人为活动带来的严峻挑战。根据对长江口滩涂的多年监测记录，对滩涂的时空变化及可能的驱动因素进行了统计分析。结果表明，自2000年代以来，长江口大部分潮汐滩位的上升速度已经变慢。 2004年至2009年，横沙滩和九段浅滩的潮滩都有较小的扩大趋势。但是，从1958年到2012年，南汇滩0 m以上的滩涂面积大幅度减少了80.8％。趋势上，由于来自上游的泥沙流量减少，地面沉降，海平面上升和近期的密集开垦，长江口的潮滩仍将遭受重大损失。此后，长江口的可持续滩涂资源的适应性管理策略如下：（1）进行涉及流域和河口的综合调整； （二）在填海和复垦之间保持平衡； （3）应对海平面上升； （4）科学促进滩涂集聚。 （C）2014 Elsevier Ltd.保留所有权利。

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  • 来源
    《Ocean & coastal management》 |2015年第5期|89-96|共8页
  • 作者

    Wei Wen; Tang Zhenghong; Dai Zhijun; Lin Yifan; Ge Zhenpeng; Gao Jinjuan;

  • 作者单位

    E China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China;

    Univ Nebraska Lincoln, Community & Reg Planning Program, Lincoln, NE USA;

    E China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China;

    E China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China;

    E China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China;

    E China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China;

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