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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (7): 279-284.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

1960—2005年皖东南降水变化分析

王伟宏,孙秀邦,王周青   

  • 收稿日期:2009-12-07 修回日期:2009-12-21 出版日期:2010-04-05 发布日期:2010-04-05

Precipitation Variation Analysis in EastSouth of Anhui Province From 1960 to 2005

  • Received:2009-12-07 Revised:2009-12-21 Online:2010-04-05 Published:2010-04-05

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摘要：

本文以皖东南7个气象站1960－2005年降水资料为基础，系统分析了近46年来皖东南地区的降水变化趋势。结果表明：皖东南地区年降水量自20世纪60年代起呈减少趋势， 70年代以来年降水量有增加趋势，但增加趋势不是很明显。各季节仅秋季降水量呈减小趋势，并通过显著性检验。1960－2005年降水日数和春冬季变化趋势不明显， 夏季降水日数呈缓慢增长趋势，秋季降水日数呈现下降的趋势。极端强降水总量在1981年之后呈上升趋势, 1963-1965年和 1968年极端强降水总量呈减少趋势并达到显著性水平。极端强降水频率和极端强降水强度在1960-2005年间，未发生明显趋势变化。

关键词: 双抗夹心ELISA, 双抗夹心ELISA, Cry8Ca蛋白, 转基因烟草, 蛴螬

Abstract:

Base on the observational data of severn meteorological stations from 1960 to 2005,the temporal distributions and their trends for precipitation in EastSouth of Anhui Province are investigated. The conclusion can be drawn as follows:, the precipitation in EastSouth of Anhui has an decrease trend from 1960s.but the precipitation in EastSouth of Anhui has an increase trend, though the annual precipitation has no significant change trend. Autumn has an significant increase trend . The annual precipitation days ,spring and winter precipitation days in EastSouth of Anhui have not significient changed. The precipitation days of summer have slightly increased ,while decreased in autumn.The extreme total rainfall since 1981 appear a increase trend ,but have a significient decreased trend from 1963 to 1965 and in 1968. extreme precipitation intensity and frequency take on a not obvious trend from 1960 to 2005.