2015年朝阳地区夏季气候对玉米产量的影响分析

The Impact Analysis of Summer Climate in 2015 on Maize Yield in Chaoyang Area

2015年朝阳地区玉米产量较常年大幅下降。分析具体原因,土壤、生产条件和农艺措施是相对稳定的因子,夏季气候条件是主要原因。2015年夏季(6-8月)朝阳地区高温天气较多、日照偏少、降水偏少,降水时空分布不均,大部分地区出现了不同程度的"夏旱",局部地区发生了暴雨、冰雹等自然灾害。

Maize yield of 2015 was degressive compared with the normal year in Chaoyang area. The concrete reason was the summer climate, because the other reasons such as the soil, production conditions and agronomic measures are relatively stable. There are many hot weather days but few sunlight and rainfall during June and August in 2015. The precipitation distribution in time and space was uneven. The degree summer drought had occurred in most area, and heavy rain, hail and other natural disasters had occurred in local area.