1Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.
2State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China.
3Xinjiang Key Laboratory of Grassland Resources and Ecology, Xinjiang Agricultural University, Urumqi, China.
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