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黄河水文特征对河口海岸变化的影响
The Impact of Hydrological Characteristics of the Yellow River Coastline Changes in the Yellow River Delta

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崔步礼 1   常学礼 1   陈雅琳 1   董琼 1   李维庆 2  
文摘 论文选取海陆变化频繁的黄河口作为研究区,在3S技术支持下采用平均高潮线法对1976-2002年18个年份的遥感影像进行了海岸线信息提取.对研究区海岸变化的叠加分析表明:1976-2002年间黄河口海岸的演变过程分为直线增长、波动增长和波动减少3个阶段.同时,黄河口水文特征的变化规律及其对岸线变化影响的分析揭示了黄河水沙状况与河口海岸线的年际变化呈线性回归关系,指出了输沙量为河口海岸变化的主要驱动力,而径流量和含沙量是通过影响输沙量而间接影响河口海岸线变化,确定了输沙量3.517×108t/a为河口海陆变迁的临界值.
其他语种文摘 The Yellow River delta as a frequently changing area has been studied by using 3S techniques for us to best understand coastline dynamics of the Yellow River estuary. According to the trait of near-infrared wave which has the lowest reflecting ratio in water, the yearly coastline dynamics had been extracted by remote sensing technique during 1976 to 2002.Consequently, the overlay analysis of annual change of coastlines, supported by GIS technique, showed that the coastline stretching distance, the coastline length, and the renewed land area had fluctuated increasing trends in the research period. The changing trends could be divided into three stages obviously in more detailed temporal scales, the first was linear increase stage from 1976 to 1985, the second was fluctuating stage from 1986 to 1996, and the third was decreasing stage during 1997. Due to observation data of the Lijin Hydrological Station which is located in the Yellow River estuary, dynamics of the sediment carrying capacity of the Yellow River had been studied in the same temporal scale. There were significant yearly changing trends during research period, the carrying capacity of the 15 years changed more than 15kg/m~3 during this period of time, and the maximum yearly changing fate of the carrying capacity reached 33.04kg/m~3 between 1987 and 1988.1n the general, the changing trend of the carry capacity of the Yellow River fluctuatedly decreased in the research period .Correlation analysis indicated that relationship between the hydrological characteristics of the Yellow River and the renewed-land amplification was most significant (significant check is more than 0.01 level.),the relation could be expressed as linear regression model. Findings also illustrated that there was a equilibrium point while runoff reached 135.32*10~8m~3, the amount of sediment discharged was 3.517* l0~8t, and the carrying capacity was 19.64kg/m~3,all relating to the hydrological characteristics of the Yellow River.
来源 自然资源学报 ,2006,21(6):957-964 【核心库】
关键词 水文特征 ; 海岸线 ; 动态变化 ; 黄河三角洲
地址

1. 鲁东大学,地理与资源管理学院, 山东, 烟台, 264025  

2. 山东利津县第二中学, 山东, 东营, 257447

语种 中文
文献类型 研究性论文
ISSN 1000-3037
学科 地球物理学
基金 山东省教育厅项目 ;  山东省自然科学基金 ;  鲁东大学大学生创新基金
文献收藏号 CSCD:2539713

参考文献 共 25 共2页

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引证文献 8 篇

1 李晓燕 黄河三角洲生态经济可持续发展研究 安徽农业科学,2008,36(5):1991-1993
被引 1 次

2 王苗苗 1979-2013年黄河三角洲岸线变迁的时空异质性研究 海洋湖沼通报,2015(3):185-192
被引 3 次

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