| 近30年昌都地区霜的变化特征分析 |
| |
| 引用本文： | 孙晓光,王腾,李白萍,陆奎勇,姜子平.近30年昌都地区霜的变化特征分析[J].中国农业气象,2011(Z1). |
| |
| 作者姓名： | 孙晓光 王腾 李白萍 陆奎勇 姜子平 |
| |
| 作者单位： | 西藏昌都地区气象局; |
| |
| 摘 要： | 利用昌都地区7个站点的气象观测资料建立时间序列,运用趋势分析、相关分析等方法研究分析1980-2009年30a昌都地区霜的分布特征、变化趋势以及初终霜对温度变化的响应。结果表明:初霜期明显推迟,终霜期有所提前,无霜期延长明显(P<0.01),近30a约增加36d,进入21世纪这种趋势更加明显;初霜日推迟、终霜日提前,无霜期延长主要是由该地区温度升高引起的,其中,月平均最低气温和平均最低地面温度的贡献较其它温度项大。研究霜的变化特征旨在为农牧业生产的调整和布局提供参考。
|
| 关 键 词： | 初霜日 终霜日 无霜期 分布特征 趋势 |
The Characteristics of Climate Change during the Frost Periods in Changdu over the Past 30 Years |
| |
| SUN Xiao-guang,WANG Teng,LI Bai-ping,LU Kui-yong,JIANG Zi-ping.The Characteristics of Climate Change during the Frost Periods in Changdu over the Past 30 Years[J].Chinese Journal of Agrometeorology,2011(Z1). |
| |
| Authors: | SUN Xiao-guang WANG Teng LI Bai-ping LU Kui-yong JIANG Zi-ping |
| |
| Institution: | SUN Xiao-guang,WANG Teng,LI Bai-ping,LU Kui-yong,JIANG Zi-ping (Changdu Meteorological Bureau,Tibet,Changdu 854000,China) |
| |
| Abstract: | By using some statistical methods and based on the frost and temperature observation data during the period of 1980-2009 from 7 meteorological stations in Changdu district,a time series was established and the characteristics of frost variations and its response to the temperature variation in Changdu district during the past 30 years were studied.The results showed that the first frost date was postponed significantly,and the last frost date occurred earlier and the frost-free period increased dramatically... |
| |
| Keywords: | First frost date Last frost date Frost-free period Distribution characteristics Tendency |
| 本文献已被 CNKI 等数据库收录！ |
|
