1. College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, P.R. China.
2. Centre for Integrated Mountain Research (CIMR), University of the Punjab Lahore, Pakistan.
3. Water Resources Section, Ministry of Planning, Development and Reforms, Islamabad, Pakistan.
4. College of Environmental Science and Engineering, Hunan University, Changsha, P.R. China.