[1]DING Shengxiang,GUO Lianyun.Analysis of Precipitation Variation Characteristics in Three-River Headwaters Region of China in Recent 50 Years[J].Research of Soil and Water Conservation,2015,22(04):310-315.
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Analysis of Precipitation Variation Characteristics in Three-River Headwaters Region of China in Recent 50 Years
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 04
Page number:
310-315
Column:
Public date:
2015-08-28
- Title:
- Analysis of Precipitation Variation Characteristics in Three-River Headwaters Region of China in Recent 50 Years
- CLC:
- P468
- DOI:
- -
- Abstract:
- Based on the precipitation data form Tongde meteorological station in the Three-River headwaters region during the period from 1961 to 2010, and using the methods of climatic linear regression, 5-year moving average, anomaly analysis, we analyzed the change characteristics of precipitation. The results showed that the annual precipitation in this region presented an overall decreasing trend, which was higher during the period from 1960s to 1980s, and in the 2010s, and which was much higher in the 1980s, and significantly increased after 2000.The precipitation in autumn, and winter did not significantly increase, precipitation trend of spring and summer did not significantly reduce. Annual distribution of precipitation in Tongde area was very uneventful, the precipitation mainly occurred from May to September; annual precipitation had an obvious abrupt change point in 1985, from then on, the annual precipitation began to decline evidently. The abrupt change time occurred in spring is early 1970, and in summer in early 1990, and in autumn in early 1983; winter precipitation abrupt change occurred in 1962.
- References:
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1900-01-01