School of Environment, Tsinghua University, Beijing 100084, China;
Environmental Policy Group,Wageningen University, Wageningen 6706 KN, the Netherlands;
School of Environment, Tsinghua University, Beijing 100084, China;
The Administrative Centre for China's Agenda 21, Beijing 100038, China;
Environmental Policy Group,Wageningen University, Wageningen 6706 KN, the Netherlands;
School of Environment, Tsinghua University, Beijing 100084, China;