命令控制型和市场激励型环境规制对造林面积的影响——来自中国县级层面的准自然实验证据
潘丹

The impact of command-and-control and market-based environmental regulations on afforestation area: Quasi-natural experimental evidence from county data in China
PAN Dan
图2 2006—2016年国家重点生态功能区与生态转移支付县造林面积
Figure 2 Afforestation area of the National Key Ecological Functional Areas Policy (NKEFAP) counties and Ecological Transfer Payment Policy (ETPP) counties, 2006-2016