Rangers of the Zhamashi management and protection station take part in a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources. (Photos: Xinhua)

Rangers of the Zhamashi management and protection station take part in a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources.

A ranger of the Zhamashi management and protection station looks through a pair of binoculars during a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources.

Rangers of the Zhamashi management and protection station pose for a group photo during a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources.

Rangers of the Zhamashi management and protection station take part in a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources.

Rangers of the Zhamashi management and protection station take part in a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources.

Rangers of the Zhamashi management and protection station take part in a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources.

A ranger of the Zhamashi management and protection station takes part in a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources.

Rangers of the Zhamashi management and protection station have a brief lunch during a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources.

Rangers of the Zhamashi management and protection station take part in a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources.

Aerial photo shows rangers of the Zhamashi management and protection station taking part in a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources.

A ranger of the Zhamashi management and protection station takes part in a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources.

Rangers of the Zhamashi management and protection station take part in a patrol task in the Qilian Mountain National Park in northwest China's Qinghai Province, Dec. 8, 2020. There are currently 228 rangers working at the Zhamashi management and protection station, which is located within the Qilian Mountain National Park. The rangers, trek 20 kilometers every day in patrols, shoulder the responsibility of keeping the park's forests safe as well as monitoring its flora and fauna resources.