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[1]CAO Xin-chun,WU Pu-te,HAO Shi-long,et al.Impacts of Climate Change on the River Runoff in Intra-county of Northwest Interior Region[J].Research of Soil and Water Conservation,2010,17(05):26-29,34.

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Impacts of Climate Change on the River Runoff in Intra-county of Northwest Interior Region

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 17 Number of periods: 2010 05 Page number: 26-29,34 Column: Public date: 2010-10-20

Title:: Impacts of Climate Change on the River Runoff in Intra-county of Northwest Interior Region

Author(s):: CAO Xin-chun^1,2, WU Pu-te^1,2,3, HAO Shi-long^2,4, ZHAO Xi-ning^1,2,3; 1. College of Water Resources and Architectural Engineering, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. National Engineering Research Center for Water Saving Irrigation at Yangling, Yangling, Shaanxi 712100, China;
3. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China

Keywords:: intra-county; climate change; rive runoff; prediction

CLC:: P467;P332.4

DOI:: -

Abstract:: Using the Mann-Kendall rank correlation analysis method to analyze the changes of temperature, rainfall and the runoff in Minle county, first, we established the quantitative relationships of the climate changing and the changes in surface runoff, and based on which we predict the runoff of the river in future. The results showed that: the climate changing time can be divided into two stages, the base period (1958-1986) and the warming period (1987-2008). The warming speeds of the latter periods is 0.62℃/10 a, and increased all over the year-round. The general trend of upward, the rate of increase is 19.5 mm/10 a, the volatility of the precipitation is increasing since the mutation year (1978), there is a decrease trends in precipitation over the years, the annual changes in precipitation is increased, just owing to the climate changing. On the contrary, the contribution of the rainfall to the runoff was different. The trends of the runoff in future will be reduced. Moreover, we proposed several measures as the response to this matter, including make adjustment to the industries and cropping pattern, use water saving irrigation, make full use of the water resources and so on.

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