文献类型：期刊文献

中文题名：基于遥感增强嵌套模型红树林带水沙环境对码头建设的响应研究

英文题名：Study on the response of hydrodynamic force and sedimentation in mangrove zone to wharf construction by a coupled model based on remote sensing enhancement

作者：唐榆森[1,2] 涂新军[1,3,4] 马克[1] 李玫[5]

第一作者：唐榆森

机构：[1]中山大学土木工程学院水资源与环境研究中心,广东广州510275;[2]珠江水利委员会珠江水利科学研究院,广东广州510611;[3]广东省华南地区水安全调控工程技术研究中心,广东广州510275;[4]南方海洋科学与工程广东省实验室,广东珠海519000;[5]中国林业科学研究院热带林业研究所,广东广州510520

年份：2023

卷号：45

期号：6

起止页码：25-35

中文期刊名：海洋学报

外文期刊名：Haiyang Xuebao

收录：CSTPCD;;Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2023_2024】；

基金：国家自然科学基金(51879288);广东省水利科技创新项目(2020-27)。

语种：中文

中文关键词：嵌套模型;遥感增强;红树林;悬浮泥沙;冲淤;铁山港

外文关键词：coupled model;remote sensing enhancement;mangrove;suspended sediment;erosion and deposition;Tie-shan Port

分类号：P751;TV92

摘要：南海北部湾铁山港码头建设期间,邻近区域红树林带植株出现受损死亡现象。本研究构建基于遥感增强包含红树林潮间带的海湾水沙嵌套模型,评估码头建设对红树林带潮流、泥沙输移及冲淤的影响。结果表明:海湾水沙嵌套模型可充分利用南海海流模拟信息,且精细化模拟了工程建设附近海域泥沙输移规律。采用全球地表水覆盖几率遥感反演数据与当地潮位的信息融合技术,为红树林带水沙模拟提供了可靠地形信息。码头建设主要影响红树林带南部潮流,涨急时流速减小,落急时部分潮沟通道流速增大。当进港方案更改为过水钢栈桥,红树林带东南部流速略有增加。码头施工期,红树林带69%~72%范围的悬浮泥沙浓度增量介于20~50mg/L之间。码头建设前,红树林带泥沙平均冲淤量为0.27cm/a;进港方案分别为不过水通道和过水钢栈桥,码头建设后红树林带淤积量增加的面积占比分别为96.6%和89.3%,平均冲淤量分别为0.45 cm/a和0.36 cm/a。过水钢栈桥替换不过水通道,红树林带冲淤增量下降了50.0%。研究结论可为潮间带水沙环境模拟和红树林带保护决策提供科学依据。
When the wharf project of Tieshan Port in Beibu Gulf was constructed,nearby mangrove plants were damaged.A coupled model of hydrodynamic force and sedimentation in the gulf including mangrove intertidal zone based on remote sensing enhancement was built.Impacts of the wharf on the tide,sediment transport,erosion and deposition in the mangrove zone were evaluated.Results showed that the model can make full use of the tidal simu-lation information in the South China Sea and can finely simulate the sediment transport principle nearby the wharf.In association with information fusion technology of remote sensing inversion of the cover probability of global sur-face water and local tidal levels,elevation data in mangrove zone were reliably obtained.The tides mainly in the southern of the mangrove zone were influenced by the wharf.The velocity decreased at the most rising tide,and that in the tidal channel increased at the most ebb tide.When the way to the wharf was transferred using a steel trestle,the velocity in the southeast of the mangrove zone increased slightly.During the construction period of the wharf,the increase of suspended sediment concentration varied from 20 mg/L to 50 mg/L in the range of 69%and 72%of the mangrove zone.Before the wharf construction,the average sediment deposition in the mangrove zone accounted for 0.27 cm/a.For two designed ways to the wharf,i.e.the road isolating tide and the steel trestle allow-ing tide passing,the average deposition accounted for 0.45 cm/a and 0.36 cm/a with the range of 96.6%and 89.3%in the mangrove zone respectively.Provided that the steel trestle to the wharf would be selected,the average incre-ment of the deposition in the mangrove zone decreased by 50%.The conclusions can provide the scientific basis for the simulation of tide and sedimentation in intertidal zone and the decision of the mangrove protection.