摘要
本文基于Landsat遥感数据提取厦门市1999年、2005年、2011年和2017年4期海岸线,并从岸线长度、年变化速率、陆地面积变化等方面对岸线变迁时空特征进行分析。结果表明,1999-2017年厦门市海岸线总长度增长29.82 km,陆地面积增加36.02 km2。其中,2011-2017年翔安区海岸线长度增加14.6 km,年变化速率为2.43 km/a;1999-2005年湖里区海岸线长度增加7.04 km,年变化速率为1.17 km/a;而其他地区变化相对不明显。总体上看,城镇扩张等人类活动是造成厦门市海岸线发生显著变化的重要原因,包括海沧区、翔安区、湖里区的沿海建设用地与港口的扩建以及翔安区东南侧水产养殖的扩张等。
Based on Landsat TM, ETM+ and OLI images obtained from the Xiamen Region, the coastlines during four periods from 1999 to 2017 were extracted to analyze the changes in length and land area. The results showed that: the total length of coastline had increased 29.82 km, and the land area increased 36.02 km2. Specifically, the most significant change occured in Xiang'an District with a length growth of 14.6 km and an annual average change rate of 2.43 km/a during 2011-2017. Additionally, the length growth in Huli District was 7.04 km, and the annual average change rate was 1.17 km/a during 1999-2005, while the changes in other districts were not obvious. In general, the coastline changes in 1999-2017 were mainly related to urban expansion and other human activities such as the expansion of coastal construction land and ports in Haicang, Xiang'an and Huli districts, as well as the aquaculture expansion in the southeastern part of the Xiang'an district.
作者
秦艳芳
叶琳
陈思明
Qin Yanfang;Ye Lin;Chen Siming(College of Ocean,Minjiang University,Fuzhou 350108,China)
出处
《中国资源综合利用》
2018年第10期167-170,179,共5页
China Resources Comprehensive Utilization
基金
2018年福建省中青年教师教育科研项目(项目编号:JT180388)
闽江学院引进人才科技预研项目(项目编号:MJY18001)的阶段性研究成果之一