Chinese Journal of Agrometeorology

• 论文 • Previous Articles     Next Articles

Variance Tendency of Precipitation and Runoff in Mountain Watershed of Hai River Basin in Recent 34 Years

TIAN Fei1,2,HAN Shu-min1,HU Yu-kun3(1.Center for Agricultural Resources Research,Institute of Genetics and Developmental Biology,CAS,Shijiazhuang 050021,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100039;3.Hebei Provincial Academy ofWater Resources,Shijiazhuang 050021)   

  • Online:2009-02-10 Published:2009-02-10

PDF (PC)

1134

Cited

25

Abstract: Based on the daily meteorological and hydrological data of 27 meteorological stations and 7 hydrological stations in the outlet of the region from 1966 to 1999,the spatiotemporal distribution of precipitation and runoff in seven typical mountain watershed such as Hutuo river,Ye river,Yang river,Sanggan river,Tang river,Sha river and Chaobai river of the Hai River Basin were analyzed with the Mann-Kendall test method.The results indicated that the precipitation was not significantly decreased in the most meteorological stations,which took 66.67%,while the temperature was significantly increased in the most meteorological stations,which took 88.89%.The runoff experienced great decrease,but the downward degree was not the same.It significantly decreased in the South and Northwest Parts.

Key words: Precipitation, Precipitation, Temperature, Runoff, Hai River Basin, Mann-Kendall