Abstract: The coastal artificial morphology construction is an important way for coastal countries to exploit the coastal resources. The formation of coastal artificial shoreline changes the pattern of natural shoreline, and influences the succession laws of the natural shoreline. In this study, the mainland coastline in Zhejiang Province in different times was extracted, based on TM remote sensing images in 1990, 2000 and 2010, the structure of mainland coastline and the influence of artificial shoreline construction on the patterns of the coastline in Zhejiang Province were analyzed. The results show that: (1) Affected by the development activities of human, the mainland coastal landscape in Zhejiang Province was characterized by the continued growing of the proportion of the artificial shoreline in recent 20 years. (2) The speed of artificial shoreline construction had significantly differences at different coastal area, especially at the Hangzhou Bay, the Sanmen Bay and the Taizhou Bay. (3) In these 20 years, coastal erosion and retreat occurred at only a small part of mainland coastline in Zhejiang Province. As a whole, it was advancing to the sea obviously. (4) The construction of artificial shoreline shortened the length of natural shoreline and reduced the tortuosity of natural coastline in Zhejiang Province in the process of straightening, but increased the diversity index of the continental coastline.

Key words: artificial shoreline, pattern of the coastline, coastline change, coastal morphology