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[1]XU Qiao-zhi,GUO Ru-jun,DING Wen-rong.Characteristics and Changing Trends of Precipitation in the Center of Yunnan Province, China[J].Research of Soil and Water Conservation,2013,20(05):155-159.

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Characteristics and Changing Trends of Precipitation in the Center of Yunnan Province, China

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 05 Page number: 155-159 Column: Public date: 2013-10-28

Title:: Characteristics and Changing Trends of Precipitation in the Center of Yunnan Province, China

Author(s):: XU Qiao-zhi, GUO Ru-jun, DING Wen-rong; College of Tourism and Geography Science, Yunnan Normal University, Kunming 650500, China

Keywords:: precipitation; changing characteristics; changing trends; center of Yunnan Province

CLC:: P333.1

DOI:: -

Abstract:: Central Yunnan province is the political, economic, cultural and transport center of Yunnan province, the shortage of water resources is very prominent.This paper based on the precipitation data from 13 meteorological stations in center of Yunnan Province from 1960 to 2011.Using linear trend, inverse distance weighted (IDW) interpolation, Mann-Kendall method and Morlet Wavelet analysis to analyze the characteristics and the changing trends of precipitation in the center of Yunnan Province. The following conclusions are The results showed as follows: (1) In center of Yunnan Province,the long-term average annual precipitation is 995.65 mm/a, undulates to 638.30~1 627.60 mm,there are significant regional differences in spatial distribution of precipitation in the study area, showing an increasing trend from the central to the both sides; (2) in recent 50 years, the precipitation in the center of Yunnan showed the tendency of decrease, and the rate is 7.67 mm/10 a, the shift year is around 2008; (3) in the area, precipitation exists periodic oscillations of 27 and 16 years, and the periodic oscillations of 27-year scale is very significant; (4) In center of Yunnan Province is shortage of water resources district,the decreasing trends of precipitation in the center of Yunnan Province should attract the attention of the relevant departments.

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