Analysis of impact effects and changes of the coastline in the Bohai Bay during the past 40 years

doi:10.3969/j.issn.1000-5641.2017.04.012

Abstract

Abstract: Using the method of remote sensing and geographic information system, based on 1975-2015 period of Landsat TM/ETM satellite image data, the Bohai Bay coastline changes, the bay area and coastline property changes during nearly 40 years are analyzed. The results show: ① the total length of the Bohai Bay coastline nearly 40 years increased 761 km, but the bay area has been a trend of decline;② artificial coastline proportion accounted for more than 95% of the total length to 2015; ③ main causes of shoreline length increase are human activity (reclamation and port construction), mainly concentrated in Caofeidian Port, Tianjin Port, Huanghua Port. From aspects such as hydrodynamic, sediment and natural evolution environment analyzed the change of the gulf coast and the gulf area of the influence of dynamic sedimentary environment, points out that with the increase of the development and utilization of Marine activities, the influence of human activities on the evolution of coastal zone environment are more and more obvious.

Key words: Bohai Bay, remote sensing, geographic information system, human activities, reclamation project, Tianjin Port

CLC Number:

P748

SUN Bai-shun, ZUO Shu-hua, XIE Hua-liang, LI Huai-yuan, YANG Zhi-wen. Analysis of impact effects and changes of the coastline in the Bohai Bay during the past 40 years[J]. Journal of East China Normal University(Natural Sc, 2017, (4): 139-148.

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