<正>The Administrative Centre for China's Agenda 21 (ACCA21) was established in 1994 with the approval of the Central Government. ACCA21 is affiliated with
<正>In the first, the paper gave a retrospective analysis on the comprehensive assessment of circular economic development. According to the requirement of impr
The paper took the human-land relations as a basic point, and the theories of tourism industry system and sustainable development as the guidance, with Gannan T