摘要
本文基于Landsat MSS/TM/ETM+/OLI遥感影像,综合运用RS和GIS技术,结合Google Earth,研究了大连市1975~2015年大陆海岸线及围填海面积和类型的变化。结果显示:(1)大连市海岸线的变迁包括向海扩张和向陆退缩两种情况,以向海扩张为主;(2)1975~1990年、1990~2000年和2000~2015年围填海面积分别为187.56 km^2、90.50 km^2和425.42 km^2,年均增长率分别为12.50 km^2/a、9.05 km^2/a和28.36 km^2/a,其中2000~2015年围填海面积最大,1990~2000年围填海面积最小;(3)1975~2015年围填海覆盖类型中工业用地的比例逐渐增高,水库/坑塘的比例逐渐降低,岛屿和交通用地的比例先降低后升高,水田和裸土只出现在1975~1990年;(4)由于围填海等人类活动,1975~2015年共有15个大小不同的岛屿与大陆相连;(5)海岸线向陆退缩的原因是一些养殖池或工业用地被拆除,主要发生在2000~2015年。
Combining RS and GIS technology,this paper explored the changes in continental coastline,reclamation area and types in Dalian from 1975 to 2015 using multi-source remote sensing data.The multi-source remote sensing data included Landsat MSS in 1975,TM in 1990,ETM in 2000 and OLI in 2015.Besides,Google Earth was used as an auxiliary.Results showed that,there were two types of coastline migration in Dalian,one was expanding seaward and the other was shrinking landward,and the former was the main type.Reclamation area was 187.56 km2 from 1975 to 1990,90.50 km2 from 1990 to 2000,and 425.42 km2 from 2000 to 2015.And the annual growth was 12.50 km2/a,9.05 km2/a and 28.36 km2/a,respectively.And reclamation area was the largest from 2000 to 2015,and was the least from 1990 to 2000.From 1975 to 2015,the proportion of industrial land increased gradually,but the proportion of aquatic ponds decreased gradually,the proportion of transportation land firstly decreased and then increased,paddy field and bare soil just appeared in 1975～1990.From 1975 to 2015,there were 15 different islands connected with continent via transportation land or aquatic ponds.The reason for coastline shrinking landward is that some aquatic ponds and industrial lands were removed,which mainly happened in 2000-2015.
作者
王雪鸽
李晓燕
贾明明
王宗明
任春颖
毛德华
WANG Xue-ge LI Xiao-yan JIA Ming-ming WANG Zong-ming REN Chun-ying MAO De-hua(College of Earth science, Jilin University, Changchun 130061, China Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China)
出处
《海洋环境科学》
CAS
CSCD
北大核心
2017年第1期87-93,共7页
Marine Environmental Science
基金
国家自然科学基金项目“应用遥感信息定量区分气候变化和人类活动对沼泽湿地植被NPP的影响”(41401502)
国家自然科学基金项目“基于优化植被指数的草本湿地植被净初级生产力遥感估算”(41371403)
作者简介
王雪鸽（1991-），女，河北邢台人，硕士研究生，主要从事资源环境遥感，E-mail：wangxg1991125@163．com
通讯作者：李晓燕（1975-），女，蒙古族，内蒙古阿拉善人，副教授，主要从事资源环境遥感与GIS应用教学与科研工作，E-mail：lxyan@jlu．edu．cn
