CAJ | 학술논문

本文从生态学种群Logistic生长方程的视角，在不考虑种群进化的影响并假设共生的作用是扩大种群环境容量的条件下，提出在共生作用和环境变化影响下以分段Logistic函数近似表示的环境容量不断变化的生产性服务业与制造业的共生发展模型，并对中国产业的数据进行实证研究。研究发现：生产性服务业和制造业共生发展的作用机制与种群属性、种群密度、制度环境变化和产业环境变化有关。
본문종생태학충군Logistic생장방정적시각，재불고필충군진화적영향병가설공생적작용시확대충군배경용량적조건하，제출재공생작용화배경변화영향하이분단Logistic함수근사표시적배경용량불단변화적생산성복무업여제조업적공생발전모형，병대중국산업적수거진행실증연구。연구발현：생산성복무업화제조업공생발전적작용궤제여충군속성、충군밀도、제도배경변화화산업배경변화유관。
Viewed from the perspective of population ecology, there exist symbiotic effects and environmental effects in the development of the producer-service industry and the manufacturing industry. Based on the logistic growth equation of population in ecology, and logistic curve fits of changing population carrying capacity in sections, this paper establishes a model for the symbiotic development of the producer-service industry and the manufacturing industry with symbiotic and environmental effects. The hypothesis is that symbiotic effects enlarge the population carrying capacity. This paper makes the assumptions that population densities are substituted with industrial annual value-added, and environmental changes are confined to institution-environmental change, which derive from the process of reform and opening up. Industry-environmental change is expressed by the increment of gross domestic product （GDP）. The model is applied to make an empirical study of the symbiotic development between the two industries in China with the findings as follows：（1） the mechanism of the symbiotic development between the producer-service industry and the manufacturing industry is that the symbiotic and environmental effects on the carrying capacities of the two populations change their growth rates. This is related to the attributes and densities of the symbiotic populations, institution-environmental change and the industry-environmental change; （2） the dynamics of the two populations are the approximate logistic curves in sections; （3） the densities of the two populations have significant positive effects on their carrying capacities, i.e., the symbiotic effects between the producer-service industry and the manufacturing industry are significant. Therefore, the model developed in this paper may be used to explain the developments between the symbiotic populations of the producer-service industry and the manufacturing industry and their environmental effects on the premise that the evolutions of the two populations are insignificant, （i.e., the natural growth rates （r1 and r2） of the two populations are constant in the model）.