Title: Runoff characteristics of Manasi River Basin in the past 50 years
Abstract: Runoff generated in the upper Manasi River Basin is water resource supplied for the middle and lower reaches.Based on the monthly runoff series(1957-2006) of the two hydrological gauging stations,Kensiwate,Hongshanzui and precipitation series at 4 precipitation stations on the upper Manasi River Basin,multiple indexes and a series of methods and wavelet methods were adopted to analyze the inter-annual,annual and periodic variation characteristics of the streamflows in the watershed for the last 50 years.The results show that:(1)Distribution of annual runoff was uneven,and it mainly focused on June and july and August.The inter-annual variations were great,with significant difference between the wet year and dry year;(2) annual runoff changes had obvious stages and the tendency of annual runoff increasing was significant;and(3) annual runoff changes had a main period of about 30 years and 15 years,with an abrupt point happening in 1995.The increasing of precipitation and climate warming were the Key factors influencing the runoff.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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Cited By Count: 7
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