Since the reform and opening up,the Pearl River Delta has achieved rapid economic and industrial development driven by the active industrialization of villages and towns,but it has also brought a trend towards fragmentation of urban ecological space.This paper introduces the rent gap theory,and based on the analysis of interest driven factors,constructs an urban ecological spatial evolution dynamic analysis model from three aspects:government control,economic development,and natural environment.An empirical analysis is conducted using the Nanhai District of Foshan as an example.The conclusions are as follows:(1)In the evolution of ecological space in Nanhai District from 2010 to 2020,government power is the main driving force for the evolution of urban ecological space;(2)The rent of ecological land is generally low,and the impact of market power on urban ecological space is not sufficient.It is difficult to promote the implementation of ecological space only through land rent.This paper proposes to establish an ecological spatial network that takes into account ecological benefits and economic costs.It is suggested to establish implementation supporting policies aimed at reducing the rent difference between other uses and ecological uses,and guide the transformation of inefficient construction land into ecological space through ecological restoration,demolition and greening.
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