Workers of Qiansongba forest farm carry saplings with mules in Fengning Manchu Autonomous County, north China's Hebei Province, Aug. 7, 2018. (Photos: Xinhua)

Workers of the forest farm have taken the advantage of the current rainy season to promote ecological protection through afforestation.

Workers of the forest farm have taken the advantage of the current rainy season to promote ecological protection through afforestation.

A worker plants a sapling of Mongolian Scots pine at Qiansongba forest farm in Fengning Manchu Autonomous County, north China's Hebei Province, Aug. 7, 2018.

Workers plant saplings of Mongolian Scots pine at Qiansongba forest farm in Fengning Manchu Autonomous County, north China's Hebei Province, Aug. 7, 2018.

Two workers plant a sapling of Mongolian Scots pine at Qiansongba forest farm in Fengning Manchu Autonomous County, north China's Hebei Province, Aug. 7, 2018.

Two workers plant a sapling of Mongolian Scots pine at Qiansongba forest farm in Fengning Manchu Autonomous County, north China's Hebei Province, Aug. 7, 2018.

Workers of the forest farm have taken the advantage of the current rainy season to promote ecological protection through afforestation.

Workers of Qiansongba forest farm carry saplings with mules in Fengning Manchu Autonomous County, north China's Hebei Province, Aug. 7, 2018.