摘要
利用豫东北具有代表性的濮阳、南乐两个国家基本站1971-2000年的气象和农气观测资料,分析了气候变化趋势及其对农作物的影响,结果表明:濮阳和南乐30 a年平均气温呈逐年升高趋势,1993年后升高趋势明显。气候变暖使冬小麦播种期推延,返青提前,对冬小麦增产有利,也利于玉米生育期的延长和产量提高;终霜期明显提前,初霜期略推迟,霜期变短,使棉花平均生育期延长,霜后花率降低,对产量和质量提高有利。
Using the data of the climate and agroclimatic observation of the two country basic stands- Puyang and Nanle from 1971 to 2000, the influence of climate change trend on crops was analyzed. The results show that the mean annual temperature increased year after year during the 30 years in Puyang and Nanle ;and increased obviously after 1993. Climate warming delayed winter wheat sowing time, advanced the resuscitate time, which were favorable for winter wheat production. It was also favorable for the extension of corn growing period and increasing in production. The end of frosty period was advanced and the begin of frosty period was delayed, and the frosty period was shorted. Then the average cotton reproductive period was prolonged and the flower rate after frosty was reduced, all that were favorable to improve the quality and production of cotton.
出处
《气象与环境科学》
2009年第1期43-46,共4页
Meteorological and Environmental Sciences
关键词
豫东北
气候变化
影响
Yu-northeast
climate change
influence
