THE ANALYSIS OF TEMPORAL VARIABILITY, TREND OF PRECIPITATION AND RIVER DISCHARGE OF KUNDUZ RIVER BASIN, AFGHANISTAN

Abstract

The aim of this study is to analyze the trend and variability of precipitation and streamflow in Kunduz River Basin which is located to north-eastern part of Afghanistan. The Mann Kendall and Sen’s Slope statistical test were applied to understand the precipitation variability for 19612010 and about one-decade recorded streamflow respectively. However, the monthly precipitation illustrated significant downward trend in spring months and upward trend in summer season, the calculated annual precipitation represented decreasing trend in the river basin. The statistical analysis of monthly and annual river flow depicted dropping values of stream discharge as well which prove the correlation of both important variables. Therefore, the calculated time series of both hydro-climate elements showed decreasing, the basin experienced drying, the decisionmakers must consider proper water resource management project to reduce the negative implication of the change and boost the temporal water resource governance as well.