This book examines the pressing challenges of urbanization and ecological degradation through the lens of circular economy principles.The book provides a detailed look at how cities can develop sustainably by integrating new planning strategies that promote economic growth while protecting the environment. Through analysis of Yangling, an agricultural research district within the Xi'an-Xianyang metropolitan area, it offers practical frameworks for resource planning, technological innovation, and strategies for engaging communities and stakeholders in the planning process. This gives readers valuable insights into creating compact, energy-efficient, and land-saving urban areas.This volume serves as a guide for the transformation of small and medium-sized cities toward healthier, more resilient urban environments that meet the needs of their residents while fostering ecological balance. A valuable resource for urban planners, policymakers, government officials, and scholars interested in sustainable development.