Impact of the forestry chief system on urban land green use efficiency
The forestry chief system is an innovative policy under China's new development pattern and an essential support for inten-sive land use and ecological civilization.To examine the impact of this system on urban land green use efficiency,this study regarded the forestry chief system carried out since 2017 in Hefei,Anqing,and Xuancheng cities as a natural experiment.Based on panel data from 232 prefecture-level cities in China from 2006 to 2020,the study used the data envelopment analysis method to measure urban land green use efficiency.It also constructed a counterfactual framework using the synthetic control method and the staggered DID method to identify the impact and mechanisms of the forestry chief system on urban green land use efficiency.The results showed that:① Overall,the average annual growth rates of urban land green use efficiency in Hefei,Anqing,and Xuancheng during the sample peri-od were 12.103%,16.090%,and 7.505%,respectively,indicating that the forestry chief system significantly promoted urban land green use efficiency,and the effect was more pronounced in areas with low efficiency before the policy was implemented.The results still held after a series of robustness tests.② On a yearly basis,the policy effect of the synthetic control method and the annual growth rate of ur-ban land green use efficiency both showed that the stimulating effect of the forestry chief system was of a long-term and lagged nature,and this effect would be stronger over time.③ The mechanism test showed that the forestry chief system mainly realized the improve-ment of urban land use efficiency through three pathways,namely,government environmental attention,economic agglomeration level,and public environmental concern.Therefore,government should actively build the forestry chief system.To solve the dilemma of urban expansion and low green land use efficiency,the forestry chief system should consolidate the ecological responsibility of leading offi-cials and improve the government's attention to the ecological environment.Leading officials should abandon the assumption that eco-logical protection and economic development cannot be promoted together,and they should endeavor to improve urban land green use efficiency by increasing economic agglomeration levels.The government should encourage the full participation of multiple players in the forestry chief system,bringing the public into the framework of the system to improve urban land green use efficiency.
urban land green use efficiencyforestry chief systemsuper-SBMsynthetic control methodstaggered DID