摘要
运用灰色关联度分析理论,对开封市2001-2010年花生产量和气象因素的关联度进行分析。研究结果显示开封市花生产量与各气象因素之间的关联度按照由大到小依次排列为:8月份平均气温>7月份平均气温>6月份平均气温>6月份光照>5月份平均气温>8月份光照>6月份降水>5月份降水>7月份降水>5月份光照>8月份降水>7月份光照。开封花生产量与气温条件的关联度最大,特别是在花生播种期间,平均气温仍然不稳定,容易受冷空气的影响,不利于花生的出苗和生长,因此选择适宜的播种期,对提高产量十分重要。花生进入荚果发育期,要特别注意防范暴雨洪涝和连阴雨天气对花生产量造成的不利影响。花生播种需要适宜的土壤水分含量,如果降水量不足,要及时造墒,降水量过多、墒情过湿要晾墒。花生开花期如果降水量不足,土壤干旱会使开花数量减少甚至开花中断。荚果成熟期如果降水量不足,会严重影响花生荚果的充实和含油量的提高。因此在花生开花期和荚果发育后期如果降水量偏少,应及时采取人工灌溉,增加土壤含水量,以提高花生产量。
Abstract： By using gray relational analysis theory, the correlation between peanut production and meteorological factors of Kaifeng from 2001 to 2010 were analyzed. The results show the correlation de gree between peanut production and meteorological factors is in descending order： August average temper ature 〉 July average temperature 〉 June average temperature 〉 June sunshine 〉 May average temperature 〉 August sunshine 〉 June precipitation 〉 May precipitation 〉 July precipitation 〉 May sunshine 〉 August precipitation 〉 July sunshine. The correlation degree of Kaifeng peanut production with temperature is lar gest ; especially during the peanut sowing, the average temperature is still unstable, and is susceptible to the cold air, which is not conducive to the emergence and growth of the peanut, so the appropriate choice of sowing to increase production is very important. When peanut is in pod development period, we should pay particularly attention to the adverse effect of storm and flood prevention and even the rainy weather on peanut production. Peanut sowing requires appropriate soil moisture content, and less precipitation need build soil moisture, more precipitation need dry soil moisture. If precipitation is less in peanut flowering,soil drought will reduce the number of flowering bloom even break. If precipitation is shortage in pod ma turity, it will seriously affect the enrichment of peanut pod and oil content. Therefore, in the flowering and pod development late of peanut, if rainfall is below normal, we should promptly take to artificial irri gation, increase soil moisture to improve peanut production.
出处
《气象与环境科学》
2012年第B09期51-54,共4页
Meteorological and Environmental Sciences
关键词
开封
花生
产量
气象要素
关联
分析
Kaifeng
peanut
production
meteorological element
association
analysis
