Open Access Research Paper Views (324) Download (7) Spatial and temporal variations of precipitation: case study of Zhanghe River Basin, P. R. China Bakhtawar Wagan, Hakimzadi, Zulfiqar Ali J. Bio. Env. Sci.7( 3), 76-86, September 2015. Key: DroughtMann-Kendall testPrecipitationTrends analysis Details