Morphological response of Lingding Bay in the Pearl River Estuary to human intervention in recent decades

Yang Liuzhu; Liu Feng; Gong Wenping; Cai Huayang; Yu Fenghua; Pan Hongzhou

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Morphological response of Lingding Bay in the Pearl River Estuary to human intervention in recent decades

机译：近几十年来珠江口伶Ling湾对人为干预的形态学响应

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The evolution of the Pearl River Estuary (PRE) in China has been intensely disturbed by diverse human activities in recent decades. In this study, the morphological changes of Lingding Bay in the PRE, consisting of three shoals (West, Middle, and East Shoals) and two channels (West and East Channels), in response to human activities since the 1970s were examined. From 1974 to 1985, the subaqueous delta was dominated by siltation, with siltation in the West and Middle Shoals but erosion in the East Shoal and West Channel. From 1985 to 1999, the subaqueous delta was eroded with increasing water volume of 347.9 x 10(6) m(3), resulting from the combined influences of land reclamation and channel dredging. In addition, water area in the Lingding Bay reduced by 8.0% in 1999 compared with that in 1985. From 1999 to 2011, the water area continued to decrease and water volume still increased, indicating the subaqueous delta was narrowed and deepened. And the Middle Shoal was dominated by siltation, but other geomorphic units were eroded. Furthermore, the subaqueous delta in inner and outer Lingding Bay switched from siltation to erosion and from erosion to siltation during this period compared with the previous period of 1985-1999, respectively. Such phenomenon revealed that the sediment sink had evolved towards outer Lingding Bay (i.e., southern subaqueous delta) during this period. Our study has important implications for understanding the individual and combined effects of human activities on the evolution mode of PRE and provides scientific guidelines for the sustainable managements in the PRE.

机译：近几十年来，人类活动的多样性极大地扰乱了中国珠江口（PRE）的发展。在这项研究中，研究了自1970年代以来响应人类活动的，由三个浅滩（西，中，东浅滩）和两个航道（西，东航道）组成的PRE中的伶ding湾的形态变化。从1974年到1985年，水下三角洲以淤积为主，西部和中部浅滩淤积，而东部浅滩和西海峡则受到侵蚀。从1985年到1999年，由于土地开垦和河道疏the的综合影响，水下三角洲被侵蚀，水量增加了347.9 x 10（6）m（3）。此外，1999年Bay顶湾的水域面积比1985年减少了8.0％。从1999年到2011年，水域面积持续减少，水量仍在增加，表明水下三角洲变窄和变深。中滩以淤积为主，但其他地貌单元被侵蚀。此外，与1985-1999年的前期相比，此期间内伶Ling湾内外的水下三角洲分别由淤积转为侵蚀，由侵蚀转为淤积。这种现象表明，在此期间，沉积物沉积物已经向玲丁湾外（即南部水下三角洲）演化。我们的研究对于理解人类活动对PRE演化模式的个体和综合影响具有重要意义，并为PRE中的可持续管理提供了科学指导。

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来源
《Ocean & coastal management》 |2019年第6期|1-10|共10页
作者
Yang Liuzhu; Liu Feng; Gong Wenping; Cai Huayang; Yu Fenghua; Pan Hongzhou;
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作者单位

Sun Yat Sen Univ, Sch Marine Sci, Guangzhou 510275, Guangdong, Peoples R China|Pearl River Hydraul Res Inst, Guangzhou 510611, Guangdong, Peoples R China|Minist Water Resources, Key Lab Dynam & Associated Proc Pearl River Estua, Guangzhou 510611, Guangdong, Peoples R China;

Sun Yat Sen Univ, Sch Marine Sci, Guangzhou 510275, Guangdong, Peoples R China|Sun Yat Sen Univ, Guangdong Prov Key Lab Marine Resources & Coastal, Guangzhou 510275, Guangdong, Peoples R China;

Sun Yat Sen Univ, Sch Marine Sci, Guangzhou 510275, Guangdong, Peoples R China|Sun Yat Sen Univ, Guangdong Prov Key Lab Marine Resources & Coastal, Guangzhou 510275, Guangdong, Peoples R China;

Sun Yat Sen Univ, Sch Marine Sci, Guangzhou 510275, Guangdong, Peoples R China|Sun Yat Sen Univ, Guangdong Prov Key Lab Marine Resources & Coastal, Guangzhou 510275, Guangdong, Peoples R China;

Pearl River Hydraul Res Inst, Guangzhou 510611, Guangdong, Peoples R China|Minist Water Resources, Key Lab Dynam & Associated Proc Pearl River Estua, Guangzhou 510611, Guangdong, Peoples R China;

Pearl River Hydraul Res Inst, Guangzhou 510611, Guangdong, Peoples R China|Minist Water Resources, Key Lab Dynam & Associated Proc Pearl River Estua, Guangzhou 510611, Guangdong, Peoples R China;

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正文语种 eng
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关键词
Morphological evolution; Geomorphic unit; Coastline change; Human activities; Pearl River Estuary;

机译：形态演化地貌单元海岸线变化人类活动珠江口;

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1. Morphological response of Lingding Bay in the Pearl River Estuary to human intervention in recent decades [J] . Yang Liuzhu, Liu Feng, Gong Wenping, Ocean & coastal management . 2019,第Juna期

机译：近几十年来珠江口岭林湾岭滨湾的形态反应
2. Impact of human activities on subaqueous topographic change in Lingding Bay of the Pearl River estuary, China, during 1955–2013 [J] . Z. Y. Wu, Yoshiki Saito, D. N. Zhao, Scientific reports. . 2016,第1期

机译：1955-2013年间人类活动对珠江口伶ding湾水下水下地形变化的影响
3. Remote sensing and GIS-based integrated analysis of coastal changes and their environmental impacts in Lingding Bay, Pearl River Estuary, South China [J] . Shui-sen Chen, Liang-fu Chen, Qin-huo Liu, Ocean & coastal management . 2005,第1期

机译：基于遥感和GIS的珠江口伶Ling湾海岸变化及其环境影响综合分析
4. The hydrodynamic process response to a strong typhoon in an estuary — a case study of Lingding Bay in the Pearl River Estuary [C] . Yong He, Jiejing Xu, Ronghui Ye, International Research and Training Center on Erosion and Sedimentation;International Symposium on River Sedimentation;World Association for Sedimentation and Erosion Research . -1

机译：对河口强力台风的流体动力学过程反应 - 以珠江河口岭岭湾的案例研究
5. Hypoxia and Ocean Acidification in Two Large Eutrophic Estuaries: Pearl River Estuary and Chesapeake Bay [D] . Su, Jianzhong . 2019

机译：两种大型富营养化河口中缺氧和海洋酸化：珠江口和切萨皮克湾
6. Impact of human activities on subaqueous topographic change in Lingding Bay of the Pearl River estuary China during 1955–2013 [O] . Z. Y. Wu, Yoshiki Saito, D. N. Zhao, -1

机译：1955-2013年间人类活动对珠江口伶ding湾水下水下地形变化的影响
7. Decadal morphological evolution of the mouth zone of the Yangtze Estuary in response to human interventions [O] . Chunyan Zhu, Leicheng Guo, Dirk Sebastiaan Maren, 2019

机译：长江口口区的截止形貌演变，以响应人类干预措施

Morphological response of Lingding Bay in the Pearl River Estuary to human intervention in recent decades

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