Aerial photo taken on March 16, 2019 shows workers watering saplings of sacsaoul trees in Alxa Right Banner, north China's Inner Mongolia Autonomous Region. As temperature rises, people plant sacsaoul trees at desert to prevent and control desertification in Alxa Right Banner. A total of 380,000 mu (about 25,333 hectares) sacsaoul trees will be planted in Alxa Right Banner in a month. (Xinhua/Yu Dongsheng)