Human activity leaves great pressure on the coast zone environment: vulnerable area脆弱地区
脆弱的海岸带
Biodiversity 生物多样性
Biodiversity is a main feature of coastal zone, which supports human life.
Coastal zones are composed of 1) estuaries河口 and bays海湾, 2) wetlands湿 地 made up of tidal marshes, tidal flats, and tidal channels, 3) and beaches海滩 and barrier islands障壁岛.
Korea, 2002.11
Sand dune in coastal zone
Qinghuangdao, 2002.9
基岩海岸
泥质潮坪海岸
红树林海岸
Mekong River Delta
Mekong River Delta
global primary productivity occurs ? Where two thirds (2/3) of the worlds cities
with populations of over 1.6 million people are located ? Where around 60% of the human population lives ? Supplies approximately 90% of world fish catch
第三章 海岸带
1 海岸带的概念和类型划分
? Coastal domain from 200 m above to 200 m below sea level
? Occupies 18% of the surface of the globe ? Is the area where around a quarter (1/4) of
Neritic and littoral lives
Cross section of a typical coastal zone
Coastal zones are areas of rapid geologic change located within the area of tidal influence.
Costal zone features
中国海岸带调查的划分
?内界：海岸线向陆15 km ?外界：15m等深线
?LOI岸 ?岩石海岸 ?生物海岸
泥质海岸 砂质海岸
Kwanghwa Island – tidal flat and beach