Prof. Zhongsheng Guo, Ph.D., Northwest Agriculture and Forestry University, China. He put forward the theory of resources use limit by plants, the theory of vegetation carrying capacity, the theory of critical period of regulation of plant resource relations and the new theory of soil and water conservation. This is the theoretical basis for high-quality development of forest, grass, agriculture and soil and water conservation. Now he is Head of "innovation China" Agricultural high-quality production and industry Service Group.