浙江省海岸带自然环境基本特征

CHARACTERISTICS OF NATURAL ENVIRONMENT AND COMPREHENSIVE REGIONALIZATION IN THE COASTAL ZONE IN ZHEJIANG PROVINCE

浙江省海岸线长１８４０ｋｍ，海岸带面积为３．７９×１０４ｋｍ２，自然环境优越，资源丰实，为浙江沿海经济发展提供了非常有利的条件。本文分两大部分，第一部分海岸带自然环境基本特征，论述了五个方面的特点，即地质基础、海岸带泥沙来源、海岸带气候类型、海流和海洋渔业及环境保护。第二部分是海岸带自然环境分区，根据自然环境要素组合特点将浙江省海岸带分为杭州湾区、浙东滨海区和沿海岛屿区。最后探讨了区域划分与资源开发利用方向。

Abstract Zhejiang, a coastal province, is located in the southeastern part of China. Its coastline is1840 km long, or one tenth of the total of the country. Off its coastline, there are 1921 islands, which account for nearly one third of the China's total. The area of its coast zoneamounts to 3.97 × 104 km2 with a favourable environment,plenty of natural resources and animportant economic status.In this paper, the interaction and connection among the environmental factors ofZhejiang's coast zone is analysed. Based on some conclusions drawn from the coastal investigations and research, five environmental characteristics of Zhejiang's coast zone are induced: thegeological structure and morphology, coastal sediment resources, influences of monsoon climate, sea currents and fisheries, and the hydrodynamic regime and environmental protection.According to those characteristics, the coast zone can be divided into three regions, i. e., theHangzhou Bay Region, the Eastern Coastal Region and the Offshore Island Region, whichcould be subdivided into ten coastal sections. The general developing strategies of each regionare also proposed.