镰刀、无人机与砖窑：三代长城守护者的守望相助

Core Viewpoint - The article highlights the dedication of individuals in protecting the Great Wall, showcasing their various methods and the importance of cultural preservation in this effort [1][10]. Group 1: Individual Contributions - Zhang Heshan, a long-time protector of the Great Wall, has walked over 100,000 kilometers in 40 years, inspecting 23 watchtowers built during the Ming Dynasty [2][3]. - Zhang's daily routine includes clearing weeds, cleaning up litter, and educating visitors about the Great Wall, reflecting his deep commitment to its preservation [3][8]. - Zhang has faced various challenges during his patrols, including encounters with wildlife and the need to document local folklore related to the Great Wall [3][10]. Group 2: Technological Integration - Zhang Peng, a leader of a volunteer service team, utilizes drones for monitoring the Great Wall, enhancing the efficiency of inspections, especially in difficult terrains [7][8]. - The use of drones allows for comprehensive aerial assessments of the wall, which is crucial for identifying areas needing repair and for reporting illegal activities [8][10]. Group 3: Cultural Heritage and Education - Xu Guohua, another protector, emphasizes the importance of traditional brick-making techniques and the historical significance of the Great Wall, which serves as a cultural symbol for the local community [10][11]. - The discovery of ancient brick kilns near the Great Wall has provided insights into its construction and has become a focal point for educational activities, attracting tourists and students alike [10][11].