Acknowledgement
We acknowledge the support of the Andassa Livestock Research Center, Amhara Region Agricultural Research Institute, Ethiopia, and the College of Grassland Science of Lanzhou University, China, for providing the respiration chambers (registered as LZUCKY-S-DXCLZ-001 for Institute of Grassland and Livestock Production System, Lanzhou University). This study was supported by the Marginal Region Agriculture Project of Tottori University; the Science and Technology Research Partnership for Sustainable Development (SATREPS) Project for Development of Next-generation Sustainable Land Management (SLM) Framework to Combat Desertification (JPMJSA1601) of the Japan Science and Technology Agency and Japan International Cooperation Agency; the Strategic Priority Research Program of Chinese Academy of Science (XDA20100102); the Key R & D Program of Ningxia Hui Autonomous Region (2019BBF02001); and the Program for Changjiang Scholars and Innovative Research Team at the University of China (IRT17R50).
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