Forest rangers measure the diameter of a tree at the Changpoling Forest Farm in Guiyang, southwest China's Guizhou Province, July 1, 2025.

　　The forest farm, established in 1914, covers over 800 hectares. For over a century, forest rangers at the farm have dedicated themselves to planting trees and guarding the woodland.

　　It is a national-level forest park in Guiyang and serves as a key part of a green belt circling the city. (Xinhua/Yang Wenbin)

　　Forest rangers patrol the Changpoling Forest Farm in Guiyang, southwest China's Guizhou Province, July 13, 2022.

　　The forest farm, established in 1914, covers over 800 hectares. For over a century, forest rangers at the farm have dedicated themselves to planting trees and guarding the woodland.

　　It is a national-level forest park in Guiyang and serves as a key part of a green belt circling the city. (Xinhua/Yang Wenbin)

　　Forest rangers patrol the Changpoling Forest Farm in Guiyang, southwest China's Guizhou Province, July 13, 2022.

　　The forest farm, established in 1914, covers over 800 hectares. For over a century, forest rangers at the farm have dedicated themselves to planting trees and guarding the woodland.

　　It is a national-level forest park in Guiyang and serves as a key part of a green belt circling the city. (Xinhua/Yang Wenbin)