CAJ | 학술논문

集装箱海运网络主要反映的是港口与航线的空间组织，其演化是一种复杂的社会、经济、历史的整合过程。运用生态学的隐喻方法对其演化的动力机制进行剖析，充分考虑到现实集装箱海运网络的规模限制与动态发展的演化特征，提出基于“优胜劣汰”的五种机制：节点增加、节点删除、择优连接、反择优删除与重新连接；通过设计港口腹地经济、港口吞吐量、港口区位等适应性指标对港口节点适应度进行度量，构建出一个适应度BA模型；对港口节点度分布的理论推导与数值模拟结果表明：（1）该模型的度分布不仅取决于港口节点的度，更依赖于港口节点的适应度。（2）该模型能够得到一个度分布服从幂律指数为γ＝1＋1／β的无标度网络。（3）若每个港口节点取相同适应度时，该模型呈现出“先到者赢”的特征；若每个港口节点适应度并不完全相同时，该模型呈现出“适者更富”的特征。
집장상해운망락주요반영적시항구여항선적공간조직，기연화시일충복잡적사회、경제、역사적정합과정。운용생태학적은유방법대기연화적동력궤제진행부석，충분고필도현실집장상해운망락적규모한제여동태발전적연화특정，제출기우“우성렬태”적오충궤제：절점증가、절점산제、택우련접、반택우산제여중신련접；통과설계항구복지경제、항구탄토량、항구구위등괄응성지표대항구절점괄응도진행도량，구건출일개괄응도BA모형；대항구절점도분포적이론추도여수치모의결과표명：（1）해모형적도분포불부취결우항구절점적도，경의뢰우항구절점적괄응도。（2）해모형능구득도일개도분포복종멱률지수위γ＝1＋1／β적무표도망락。（3）약매개항구절점취상동괄응도시，해모형정현출“선도자영”적특정；약매개항구절점괄응도병불완전상동시，해모형정현출“괄자경부”적특정。
The container shipping network is port systems and the spatial organization of routes , which evolution is a complex social , economic and historical integration process .According to the evolution dynamic mechanism based on the ecology metaphor , the characteristics of size limit and dynamic development of container shipping network in reality have been fully considered .Furthermore , the five mechanisms , named node step , node dele-tion, preferential attachment , anti-preferential deletion and rewiring are proposed based on “survival of the fit-test”.Since the adaptability indexes for port hinterland economy , port throughput and port location are designed to measure the fitness of port node , a fitness BA model is put forward .Then , the degree distribution is calculated by theoretical derivation and numerical simulation .The results show that (1) the degree distribution depends on not only the degree of port nodes , but also the fitness function of port nodes;( 2 ) the fitness BA model owns a power-law degree distribution with an exponent γ=1+1/β;(3)“first-mover-wins” will be present if the fitness of each port node is all equal , while“fit-gets-richer” will appear if the fitness of each port node is not completely equal.