Land has turned green under the management of Zhang Yinglong at Gechougou Village, Shenmu County of northwest China's Shaanxi Province, May 27, 2020. (Xinhua/Liu Xiao)

Zhang Yinglong observes on the forest watchtower at Gechougou Village, Shenmu County of northwest China's Shaanxi Province, May 27, 2020. (Xinhua/Liu Xiao)

Zhang Yinglong checks the growth of plants at Gechougou Village, Shenmu County of northwest China's Shaanxi Province, May 27, 2020. (Xinhua/Liu Xiao)

Zhang Yinglong (R) and a scientist discuss about soil moisture at Gechougou Village, Shenmu County of northwest China's Shaanxi Province, May 27, 2020. (Xinhua/Liu Xiao)

Zhang Yinglong checks the insect hunter at Gechougou Village, Shenmu County of northwest China's Shaanxi Province, May 27, 2020. (Xinhua/Liu Xiao)