Facing the challenging tasks of large scale ecological rehabilitation, restoration, and even recreation, design ecology comes to the stage. Three kinds of intellectual assets of mankind are the resources that inspire the practice of designed ecologies:knowledge of ecological sciences, ancient wisdom accumulated through cultural adaptation to the changing nature, and arts that advance humanity, which make designed ecologies to be nature-based, ecosystem service-oriented, and arts and sciences integrated. The performance studies published here on the some of the typical designed ecologies done by Turenscape in the past two decades demonstrated a promising and bright future of the practice of designed ecologies in solving the severed urban and rural ecological issues. Design ecology has be proven, and continue to be proven as an promising yet challenging new discipline that is flourishing with the development of eco-civilization.