基于GF-1卫星遥感影像的海岸线生态化监测与评价研究——以营口市为例
发布时间:2017-12-27 12:24
本文关键词:基于GF-1卫星遥感影像的海岸线生态化监测与评价研究——以营口市为例 出处:《海洋学报》2017年01期 论文类型:期刊论文
更多相关文章: 海岸线 卫星遥感影像 潮间带完整性 水陆边界线 生态功能
【摘要】:海岸线是海洋与陆地的分界线,也是重要的生态交错线。本文采用GF-1卫星遥感影像,通过监测大潮高潮时刻和小潮低潮时刻海岸水陆边界线,构建了潮间带完整性系数,以此为依据将海岸线划分为自然海岸线、具有基本生态功能的人工海岸线、具有部分生态功能的人工海岸线、具有有限生态功能的人工海岸线、具有少量生态功能的人工海岸线和无生态功能的人工海岸线。在此基础上,结合潮间带完整性系数及其毗邻海岸线长度,构建了海岸线生态化指数,用以评价区域海岸线的生态化程度。营口市海岸线以无生态功能的人工海岸线、自然海岸线和具有少量生态功能的人工海岸线为主,分别占到海岸线总长度的45.74%、18.31%和15.53%。营口市总体海岸线生态化指数为0.29,其中西城区、老边区、盖州北、鲅鱼圈区和盖州南分别为0.55、0.17、0.40、0.10和0.55。
[Abstract]:The coastline is the boundary between the sea and the land, and it is also an important ecotone. This paper uses GF-1 satellite remote sensing image, by monitoring the tide high tide and neap rise time and coastal boundary line, build integrity coefficient of intertidal zone, on the basis of dividing the shoreline has the basic ecological functions of natural coastline, the artificial coastline, is part of the ecological function of artificial shoreline and artificial coastline, with limited ecological function with a small amount of ecological function of artificial coastline and ecological function of artificial coastline. On this basis, combining the intertidal integrity coefficient and the length of adjacent coastline, the coastal line Ecologicalization index is constructed to evaluate the degree of ecologicalization of the regional coastline. The coastline of Yingkou is mainly composed of artificial coastline without natural function, natural coastline and artificial coastline with a little ecological function, which accounts for 45.74%, 18.31% and 15.53% of the total length of coastline, respectively. The total coastline ecological index of Yingkou is 0.29, of which Xicheng District, old border area, Gaizhou north, Bayuquan area and Gaizhou south are 0.55, 0.17, 0.40, 0.10 and 0.55, respectively.
【作者单位】: 国家海洋环境监测中心;国家海洋局海域管理技术重点实验室;
【基金】:国家自然科学面上基金(41376120) 海洋行业公益性科研专项(201005011,201405025)
【分类号】:P715.7;P737.1
【正文快照】: 1引言海岸线是海洋与陆地的分界线,但受到潮汐、波浪、风暴潮等海洋水动力环境的影响,海岸线有进有退,时刻处于变化过程中[1—2]。这种海岸线的往复进退变化造就了海洋与陆地之间一种独特的生态系统——潮间带生态系统。潮间带生态系统受海水涨落影响,涨潮为海,落潮为滩,具有,
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