基于Brusselator模型的黄河流域创新生态系统耗散结构研究

Dissipative Structure of Innovative Ecosystem in the Yellow River Basin Based on Brusselator Model

为探究黄河流域创新生态系统的耗散演化特征,以流域九省(区)为实证对象探究其创新生态系统耗散结构特性、形成过程及演化格局。依据耗散结构理论演绎创新生态系统耗散结构特征及形成过程,通过Brusselator模型转译推导创新生态系统耗散水平,结合熵权Topsis法测度黄河流域2011—2020年创新生态系统耗散水平,并对其时空演化格局进行了研究。结果表明:创新生态系统的动态演化过程符合耗散结构形成条件;黄河流域创新生态系统耗散水平虽然总体上呈逐年上升态势,但在研究期内均未形成耗散结构;相较于创新投入,创新地景是致其耗散水平低的制约因素;黄河流域创新生态系统耗散水平呈现“下游引领、中游跟随、上游追赶”的阶层状分布格局。

Taking the Yellow River Basin as the empirical object,the dissipative structure characteristics,formation and evolution of the in-novative ecosystem were explored.The formation process of the dissipative structure of the innovative ecosystem were deduced according to dissipative structure theory,and the dissipation level measure formula was derived from the Brusselator translation model,combined with the entropy weight Topsis method to measure and depict the dissipation level and evolution of innovative ecosystem in the Yellow River Basin from 2011 to 2020.The results show that the dynamic evolution of innovative ecosystems meets the conditions for the formation of dissipative struc-tures.Although the dissipation level of the innovative ecosystem in the Yellow River Basin shows a trend of increasing year by year,no dissi-pation structure has been formed during the study period.Compared with innovation investment,the innovation landscape is more important for its level of dissipation.The dissipation level of the innovative ecosystem in the Yellow River Basin shows a hierarchical distribution pattern of“downstream leading,midstream following and upstream catching”.