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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (1): 275-278.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

开鲁县55年降水变化分析

姜秀萍 张桂英 宋玉红 王丽娟 张 莉 赵慧颖   

  • 收稿日期:2010-07-09 修回日期:2010-08-28 出版日期:2011-01-07 发布日期:2011-01-07

The precipitation change analysis in Kailu country in recent 55 years

  • Received:2010-07-09 Revised:2010-08-28 Online:2011-01-07 Published:2011-01-07

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摘要：

摘要：利用开鲁基准气候站1953~2007年历年逐月逐日降水量资料，运用线性变化，累积距平、信噪比、F检验等方法进行分析。结果表明：（1）开鲁县降水量为减少趋势，年降水量倾向率为-11.1mm/10a，55年累计每年减少61.0mm，减少季节为夏、秋季；阶段性明显，目前正处于少水阶段，是降水量最少时期。（2）开鲁县中雨以上降水日数，降水量及其占总降水量的百分率均为减少趋势，分别在0.10和0.05信度水平以上；最大降水过程累计量亦呈减少趋势，因而开鲁县干旱化程度加剧。

关键词: 城中村, 城中村, 社会保障, 失地居民

Abstract:

The precipitation change analysis in Kailu country in recent 55 years Jiang Xiuping1 Li Chunyun2 Song Yuhong2 Wang Lijuan 1 Zhang Li 2 (1 Kailu country Meteorological Bureau of Inner Mongolia , Kailu , 028400. 2 Tongliao Meteorological Bureau of Inner Mongolia .) Abstract: Use the monthly and daily rainfall data in Kailu reference climate station from 1953 to 2007, use of linear change, the cumulative anomaly, SNR, F test for analysis. Show as a result: (1) The rainfall in Kailu country shows a decreasing trend, annual rainfall tendency rate is -11.1mm/10a, cumulative annual reducing is 61.0mm in 55 years, reducing seasons are in summer and autumn ; stage is clear, it is in a less rain stage now, it is the least period of rainfall. (2) The days of rain, rainfall and percentage of total rainfall over middle rain are decreasing trend, ,they are 0.10 and 0.05 above the level of reliability respectively ; the largest cumulative amount of rainfall shows also a decreaseing trend, so the drought degree in Kailu County is increasing.