taking the Hoholt-Baotou-Yinchuan-Yulin economic zone as an example 资源型地区可持续发展战略研究：以呼包银榆经济区为例：taking the Hoholt-Baotou-Yinchuan-Yulin economic zone as an example taking Poyang lake ecological economic zone as an example taking the folk narritve of Manchu in Liao Ning as an example take the Yangtze River Economic Zone as an example taking Lan-Xi economic zone as example