安徽农业科学2011，Vol.39Issue(17)：10439-10441,3.
近49年辽阳市玉米生长季气候变化特征及其对产量的影响
Characteristics of Climate Change during Maize Growing Period and Its Impacts on the Output in Liaoyang City in Recent 49 Years
张梅 1安娟 1陈玉光 1徐婷1
作者信息
- 1. 辽宁省辽阳市气象局,辽宁,辽阳,111000
- 折叠
摘要
Abstract
[ Objective] Characteristics of climate change during maize growing period and its impacts on the output in Liaoyang City in recent 49 years were analyzed. [ Method ] Air temperature, precipitation, sunshine, etc. of maize sowing time, vegetative stage and reproductive stage in Liaoyang during 1961 -2009 were standardized, and these meteorological data after standardizing and maize yield data were compared and analyzed by using liner trend imitate, moving average, etc.. [ Result] The average temperature of each period of maize growing season in recent 49 years were on the rise, the temperature of vegetative and reproductive stage was obvious; precipitation changed little in the sowing time, vegetative and reproductive stage were on the decrease; sunshine throughout the growing season showed the decreasing trend. No matter in which the growth period, the rise of temperature had certain promotion effect on the rise of maize unit yield; the reduction of precipitation and sunlight caused a small cut or increase slowly in recent 4 years. [ Conclusion] It provided reference basis for the leadership of government and agriculture section to arrange and command agricultural production scientifically, make the most use of temperature and light, water resources and forecast maize yield accurately.关键词
气温/降水/日照/玉米产量/线性趋势/滑动平均Key words
Air temperature/ Precipitation/ Sunlight/ Maize yield/ Linear trend/ Moving average分类
农业科技引用本文复制引用
张梅,安娟,陈玉光,徐婷..近49年辽阳市玉米生长季气候变化特征及其对产量的影响[J].安徽农业科学,2011,39(17):10439-10441,3.
