| 摘要: |
| 文章利用1991年、2000年、2006年、2010年和2015年5个时相的遥感影像，开展了近20余年唐山市海岸线的变迁及驱动力分析。得出结论如下：①1991—2015年间唐山市海岸带岸线总长度从273 km增长到449 km，年平均增长7.33 km；②1991—2015年间唐山市岸线利用类型增加了3类，人工岸线长度增加了190.36 km，占比增加了6.22%；③工业用岸线为增长最快的岸线，长度从15.32 km增长为221.00 km，增长了205.68 km，渔业用岸线为减少最快的岸线，长度由222.72 km减少为158.60 km，减少了64.12 km；④唐山市海岸带淤积面积为4.0×105 hm2，侵蚀面积为670 hm2，岸线平均变化速率为605.44 m/a；⑤曹妃甸港区、京唐港等建设是导致唐山市海岸线变迁的主要原因。 |
| 关键词: 唐山市 海岸线 海岸线变迁 遥感 DSAS |
| DOI： |
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| 基金项目:海洋调查评价与科技管理(2200210). |
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| Remote Sensing Analyses of the Spatial and Temporal Changes in Tangshan Shoreline from 1991 to 2015 |
| TIAN Zhen,ZHU Jianhua,WANG Shiang,YANG Weiwei |
| National Ocean Technology Center |
| Abstract: |
| Five years remote sensing images of 1991,2000,2006,2010,2015 were used to analyze the changing characteristics and driving force in Tangshan shoreline over the past 24 years.The result showed that: (1) the overall length of Tangshan coastline increased from 273km to 449km from 1991 to 2015 and the average annual growth was 7.33km.(2) Three types of shoreline had been increased and the length of artificial shoreline increased 190.36km during the period of 1991—2015.(3) Industrial shoreline had the fastest growth and its length increased from 15.32 km to 221.0 km,which had been increased 205.68 km.Fishing shoreline had the fastest decrease and its length dreaded from 222.72 km to 158.6 km,which had decreased 64.12 km.(4) The deposition area of Tangshan was 4.0×105 ha and the erosion area of Tangshan was 670 ha.Average expansion rate for shoreline in Tangshan was 605.44 m/a.(5) Coastal zone exploitation was the main reason that caused shoreline change in Tangshan. |
| Key words: Tangshan city,Coastline,Change of coastline,Remote sensing,DSAS |
