Tie Liu, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China, Аbdulla Saparov, Academy of Agricultural Sciences of Republic of Kazakhstan, Almaty, Kazakhstan, Aminjon Gulakhmadov, Ministry of Energy and Water Resources, Dushanbe, Tajikistan and Majid Gulayozov, Research Center for Ecology and Environment of Central Asia, Dushanbe, Tajikistan