摘要
分析了遵义市1951~2005年的降水变化趋势,结果表明：遵义市的总降水量无显著变化,但是降水量的变异系数较大;不同月份的降水量和降水频率的变异系数较大。遵义市的降水主要是〉10mm降水,其频率能够解释总降水量的26%,而能够增加土壤储水的5~10mm降水,其频率仅仅能够解释总降水量的15%。总的降水频率和秋冬的降水频率呈现显著的下降趋势,表明该市总体呈现干旱趋势,尤其是秋冬季节。降水的变化很可能影响到该城市的景观绿化。
The trend of precipitation variation from 1951 to 2005 in Zunyi is analysed, and the result shows that the total precipitation of Zunyi almost remains the same, that the coefficient of variation about precipitation is relatively great. The main precipitation of Zunyi is above 10 mm; its frequency can account for 26%; and it can help moisturize soil to 5 ~ 10 mm, whose frequency can only account for 15%of the total precipitation. The whole precipitation frequency and the precipitation frequency in winter and autumn show a saliently downward trend, which means that the climate of Zunyi is dry, esp. in winter and autumn. Therefore, the variation of precipitation has an influence on the landscape of the city.
出处
《遵义师范学院学报》
2016年第1期99-103,共5页
Journal of Zunyi Normal University
基金
贵州省科技合作计划项目(黔科合LH字[2015]7050号)
关键词
有效降水
降水频率
降水量
气候
effective precipitation
precipitation frequency
precipitation
climate
