关键词: 地域多功能, 空间分异, 演进特征, 环渤海地区

Abstract: Based on the definition of dominant functions as well as the building of multifunctionality evaluation index system and analysis models, the authors evaluated the functions of economic development, grain production, social security and eco-conservation. Major findings are summarized as follows. 1) In 2008, economic-oriented functional areas were mainly distributed in Beijing-Tianjin-Tangshan region, Shenyang Metropolitan area, Jiaodong Peninsula and other municipal districts; grain-oriented functional areas were mainly distributed in central plain of Liaoning, western plain of Shandong, piedmont plain of Taihang Mountain and alluvial plain of Haihe River; the spatial pattern of social security function was closely related to that of economic development; eco-conservation functional areas were concentrated in eastern mountain areas and northwest hill areas of Liaoning, and northeast mountainous-hilly areas in Hebei. 2) Compared with 1990, the indices of multi-functions demonstrated an upward trend, and functions of economic development and social security have been improved significantly. The increasing degree of grain production function was smaller with the gravity center of grain production gradually concentrated on the plain agricultural areas, while the distribution of eco-conservation function hadn’t change considerably.

Key words: territorial multi-functions, spatio-temporal differentiation, evolutive characteristics, the Bohai Rim in China