ABSTRACT
The coastal zone has historically played a very important role in addition to being a source of food and nourishment for people living near it. It also serves as a highway for commerce. First, to define the terms: The coastal zone is the area of the sea interconnected with the land. The59 extent of the coastal zone covered is different in each country. For China, the coastal zone is the area extending 10 km landwards from the coastline and seaward to the 15m contour in depth. This range can be extended or reduced in the areas of bedrock coastline, river mouth, island and sandbar of radiation shape.
