In order to better promote the global desert green economy and the goal of "zero growth of global land desertification in 2030", the United Nations Environment Programme and the secretariat of the United Nations Convention to Combat Desertification will sign the Global Desert Green Economy Development Strategic Cooperation Agreement and the Global Desertification Control Strategic Cooperation Agreement with China Yili Public Welfare Foundation, respectively, in order to reverse the global land degradation trend and promote sustainable land management technologies and practices in arid areas, so as to restore the productivity of land and soil and promote the sustainability of land.