摘要
利用1961～2008年河南省气象资料,统计分析了年平均气温、降水量、日照时数的地域分布状况及变化趋势。结果表明,全省年平均气温具有明显的上升趋势,上升速率为0.158℃/10a,20世纪90年代至今处于高温期;年降水量具有很弱的增加趋势,增加速率为0.7 mm/10a,20世纪90年代末期至今处于多雨期;年平均日照时数具有明显的下降趋势,下降速率为99.2 h/10a,20世纪60年代至今呈显著振荡下降趋势。
According to the meteorological data from 1961 to 2008 in Henan Province, its regional distribution and variation of annual average temperature, precipitation and sunlight hours were statistically analyzed. As indicated by the results, the annual average temperature of the whole province showed an obvious upward trend at a rate of 0. 158 ℃ every ten years, and it maintained at a relatively high level from 1990s till now; the annual precipitation was increasing by 0.7 mm every ten years, and the greater rainfall amount was found from late 1990s till now; the annual average sunlight hours declined obviously at the rate of 99.2 h every ten years, and it showed a fluctuating downward trend from 1960s till now.
出处
《安徽农业科学》
CAS
2012年第14期8245-8247,共3页
Journal of Anhui Agricultural Sciences
关键词
气候资源
光温水
趋势分析
Climate resources
Sunlight, temperature and precipitation
Trend analysis
