关键词: 浙江, 大陆海岸线, 人工围垦

Abstract: Combining the remote sensing images and regular data, the continental shorelines at seven periods in Zhejiang were depicted by using the data during the last 100 years. In those seven periods, continental shoreline types and sea reclamation area were calculated and the results are as follows: (1)The spatial pattern of the sea reclamation and way varied from time to time and the proportion of artificial shoreline has been risen from 48.01% to 67.46% during the last 100 years. (2) The relation between the increment of artificial shoreline and the area of reclamation presented three obvious stages from 1913 to 2014: The first stage is that the largest increment of artificial shoreline between 1913-1970 corresponded to the smallest reclamation area change, which meant that people were priority to individual farming during that time. The second stage is that the reclamation area had began to increase rapidly between 1970-1995 while the artificial shoreline reduced, which represented at this time it was collectivized agricultural era. And the third is that the increment of artificial shoreline is relatively small, however, reclamation area increases enormously, which shows that we are now in the stage of both industry and urban land use. (3)The estuarine coastline has been being translated to the sea and the coastline length has increased or decreased. Since 1913, the main estuary reclamation area is about 1 914.85 km², and this is around 76.79% in Zhejiang Province.(4)The major changes in the gulf coast was the blockage of the harbor and the total length of shoreline were being continued to reduce in the last 100 years. Since 1913, these three harbors’ reclamation area is 429.32 km², and it is about 17.22% in Zhejiang Province.

Key words: Zhejiang, continental shoreline, sea reclamation