Forth, to renovate the construction of ecological environment with the final goal of rebuilding a place in north of the Great Wall, which is as beautiful as south of Yangtz River and create a harmonious living state for human and the nature.

• 对策研究之四是生态环境建设创新,最终达到再造一个山川秀美的“塞上江南”和人与自然和谐的生存状态。