1. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology , Kunming , PR China ;
2. Xinjiang Institute of Ecology & Geography, Chinese Academy of Sciences , Urumqi , Xinjiang , China ;
3. Cele National Station of Observation and Research for Desert-Grassland Ecosystem, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences , Xinjiang , China ;
4. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences , Urumqi , China ;
5. Xinjiang Key Laboratory of Desert Plant Root Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences , Urumqi , China ;
6. Department of Botany, Government College University Lahore , Lahore , Pakistan ;
7. Department of Environmental Science, University of Okara , Okara , Pakistan ;
8. University of Chinese Academy of Sciences , Beijing , China ;
9. Department of Environmental Sciences, Shaheed Benazir Bhutto University Sheringal , Sheringal , Khyber Pakhtunkhwa , Pakistan