From the perspective of dissipative structure, port-city is a system of dissipative structure supported by external environment of nature, society and economy, based on coupling between systems of port and city spatio-temporally.According to the analysis of its evolution process, while the negative entropy input from the external environment, the system will be able to maintain the order and develop towards an orderly and senior direction through fluctuations of its size.The article vertically evaluated the comprehensive development level of the system in time sequence, and horizontally measured orderly condition using system entropy from elemental composition.By comparative analysis, the comprehensive development level and system entropy are of great relevance.Further studying the structure of system entropy, we can understand the evolution mechanism and the orderly development essence of port-city system which lies in negative entropy stream input of port-city system, city system and port system.Taking Lianyungang city in Jiangsu Province, China, for example, merging the raw data of 29 indicators in 1996-2008 into the entropy of openness, the entropy of social power, entropy of the facilities environment and entropy of economic power, the article derived the input time and method of negative entropy flow which cause fluctuations of port-city system of Lianyungang.Based on above the empirical study, the article theoretically summarized the general law of orderly evolution of port-city system.
YANG Shan, PAN Jing, JI Zeng-Min
. The Evolution Mechanisms and Law of Lianyungang Port-city System Based on Principles of Dissipative Structure[J]. SCIENTIA GEOGRAPHICA SINICA, 2011
, 31(7)
: 781
-787
.
DOI: 10.13249/j.cnki.sgs.2011.07.781
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