APPROACH TO THE REGIONALIZATION OF AGRICULTURAL—PASTURALIZATION AROUND CHANGSHAN ISLANDS IN NORTHERN YELLOW SEA

Based on the data of resources,environment and foundation of production,applying principal compo-nents-clustering quantitative analysis,this article divides the maritime space of Changshan Islands into three regions of agricultural-pasturalization,providing a scientific basis for the rational distribution of marine cultivation.The three re-gions are as follows:1)The region of an agricultural-pasturalization in the northern part of maritime space.It includes Da Wangjia and Shicheng islans.The main production is cultivation of prawn and mollusks in sea beach,float raft culture of mussel in shallow sea and scallop ,and breeding of sea cucumber in submarine.2)The region of agricultur-al-pasturalization in the middle western part of maritime space.It includes Da Changshan and Guanglu islands and west-ern part of Xiao Chengshan Island.The man production is folat raft culture of mussel and scallop in shallow sea,and breed-ing of sea cucumber in submarine.3)The region of agricultural-pasturlization of the southeastem part of maritime space.It includes the eastern part of Xiao Chan Island,Haiyang and Zhangzi islands.The main production is breeding of abalone,sea cucumber,algaes and fish.

Approach to the regionalization of agricultural-pasturalization around changshan islands in northern yellow sea

Based on the data of resources, environment and foundation of production, applying principal components-clustering quantitative analysis, this article divides the maritime space of Changshan Islands into three regions of agricultural-pasturalization, providing a scientific basis for the rational distribution of marine cultivation. The three regions are as follows: 1) The region of an agricultural-pasturalization in the northern part of maritime space. It includes Da Wangjia and Shicheng islands. The main production is cultivation of prawn and molluscs in sea beach, float raft culture of mussel in shallow sea and scallop, and breeding of sea cucumber in submarine. 2) The region of agricultural-pasturalization in the middle western part of maritime space. It includes Da Changshan and Guanglu islands, and western part of Xiao Chengshan Island. The main production is float raft culture of mussel and scallop in shallow sea, and breeding of sea cucumber in submarine. 3) The region of agricultural-pasturalization of the southeastern part of maritime space. It includes the eastern part of Xiao ChangShan Island, Haiyang and Zhangzi islands. The main production is breeding of abalone, sea cucumber, algaes and fish. Foundation item: Under the auspices of the National Natural Science Foundation of China (No. 49171026). Biography: ZHANG Yao-guang (1934 –), male, a native of Shanghai City, professor. His research interest includes marine economic geography.