Analysis of County-Scale Eco-Efficiency and Spatiotemporal Characteristics in China

Eco-efficiency is a key indicator to measure the level of regional sustainable development. The county basic spatial unit socio-economic activities and policy implementation in China. Hence, this paper conducts eco-efficiency analysis at scale order provide reference for central local governments formulate differentiated enhancement policies, further promote Chinese ecological development, advance construction civilization with high quality. Based on Super-Slacks-Based Measure (SBM) model Malmquist index, constructed an measurement method analyzed variation characteristics, influencing factors, pattern counties from 2000 2020. results showed that: (1) was generally low China roughly distributed pyramid. county-level had distribution being west east, south north, significant non-equilibrium. There positive correlation between neighboring (2) per-capita GDP has eco-efficiency, while energy consumption, arable land area have negative correlation. redundancy rate input indicators counties. (3) During study period, most displayed fluctuating growth trend. mainly driven by technological progress.