摘要
海岸线是陆地与海洋之间的边界,具有重要的生态功能和资源价值。由于围填海等人类活动的加剧,岸线迅速向海域方向推进。本文以河北省2019年大陆海岸线为研究对象,基于Landsat OLI遥感影像,通过遥感目视解译与实地验证相结合的方式,对河北省海岸线的空间分布和属性分类进行了研究,结果显示,河北省2019年大陆海岸线长度约715.59 km,其中自然岸线约71.29 km,人工岸线约644.30 km。自然岸线中,基岩岸线长度约为12.96 km,砂(砾)质岸线长度约58.33km,占总长度比例分别达到了1.81%、8.15%;人工岸线中,围海造陆及港口岸线长度约312.76 km,围海养殖岸线长度约171.68 km,盐田岸线长度约为10.46 km,海堤岸线长度约30.55 km,人工河口岸线约118.85 km,占总长度比例分别达到了43.71%、23.99%、1.46%、4.27%和16.61%。
Coastline is the boundary between land and ocean, which has important ecological function and resource value. Due to the intensification of human activities such as reclamation, the coastline rapidly advances to the ocean. This article takes the mainland coastline of Hebei Province in 2019 as the research object, based on Landsat OLI remote sensing images, through the combination of remote sensing visual interpretation and field verification, the spatial distribution and attribute classification of Hebei Province’s coastline are studied. The results show that the length of coastline of Hebei Province in 2019 is about 715.59 km, of which the natural coastline is about 71.29 km and the artificial coastline is about 644.30 km. In the natural coastline, the length of bedrock coastline is about 12.96 km, and the length of sand( gravel) coastline is about 58.33 km, accounting for1.81 % and 8.15 % of the total length, respectively. Among the artificial shorelines, the length of reclamation and port coastline is about 312.76 km, the length of sea-farming coastline is about 171.68 km, the length of salt field coastline is about 10.46 km, the length of seawall coastline is about 30.55 km, and the length of the artificial river port coastline is about 118.85 km, accounting for 43.71%, 23.99%, 1.46%, 4.27% and 16.61% of the total length,respectively.
作者
汪翡翠
杨朋
施佩歆
商志文
肖国强
王福
WANG Fei-cui;YANG Peng;SHI Pei-xin;SHANG Zhi-wen;XIAO Guo-qiang;WANG Fu(Tianjin Centre,China Geological Survey,Tianjin 300170,China;Key Laboratory of Coast Geo-environment,China Geological Survey,CGS,Tianjin 300170,China;North China Center for Geoscience Innovation,Tianjin 300170,China)
出处
《华北地质》
2021年第4期35-39,共5页
North China Geology
基金
中国地质调查局项目“津冀沿海资源环境承载能力调查(DD20189506)”
国家自然科学基金项目“渤海湾西北岸4ka BP前后古环境重建(41806109)”。
关键词
海岸线
围填海
自然岸线
渤海湾
coastline
reclamation
natural coastline
Bohai Bay
