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- W2364867430 abstract "Aims Shortage of water resources is a key ecological problem facing the Loess Plateau.Therefore,it is critically important to understand and predict the coupling effects of landuse and climate variability on streamflow characteristics for integrated watershed management and ecological restoration.We used the typical meso-scale Qingshui River watershed located in middle reach of the Yellow River to examine the trend of annual streamflow and separate the effects of landuse change on streamflow from that of climate variability.Methods The trend of annual streamflow,precipitation and potential evapotranspiration and their inflection points were analyzed and examined using the nonparametric Mann-Kendall test,Moving t-test technique and analysis of hopped parameter.Three phases of landuse for the watershed were obtained representing the original and dramatic landuse changes due to the watershed ecological restoration.Landuse in 1959 (original) was interpreted from the aerial photo image taken that year.Landuses in 1986 (Three Norths Shelterbelt Program) and 2007 (Three Norths and Land Conversion Program) were extracted and merged from four-season Landsat TM images by deploying Geomatica V8.2.The stream flow response to landuse and climatic variability was separated following the approach Milly and Dunne (2002) developed on the basis of water balance.In addition,the landuse and climate variability effects on the high,normal and low flow were examined by flow duration curve (FDC) analysis.Important findings Streamflow decreased significantly during 1960 to 2005,with the inflection point in 1980.We estimated that streamflow reduction from 1980 to 2005 compared to 1960 to 1980 was attributable to landuse change (53.21%) and climate change (46.79%).Because precipitation had no significant trend and potential evapotranspiration significantly increased from 1960 to 2005,we concluded that the streamflow reduction was mainly due to the temperature-induced increase in potential evapotranspiration and evapotranspiration increase by increased forest landuse." @default.
- W2364867430 created "2016-06-24" @default.
- W2364867430 creator A5026537644 @default.
- W2364867430 date "2010-01-01" @default.
- W2364867430 modified "2023-09-23" @default.
- W2364867430 title "Streamflow response to climate and landuse changes in Qingshui River watershed in the loess hilly-gully region of Western Shanxi Province,China" @default.
- W2364867430 hasPublicationYear "2010" @default.
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