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中国农学通报

中国农学通报 ›› 2017, Vol. 33 ›› Issue (31): 11-14.doi: 10.11924/j.issn.1000-6850.casb16090122

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

自然降水与太行山区玉米单产形成的关系 ——以武安市为例

刘猛   

  1. 河北省农林科学院谷子研究所
  • 收稿日期:2016-09-27 修回日期:2017-02-22 接受日期:2017-02-23 出版日期:2017-11-27 发布日期:2017-11-27
  • 通讯作者: 刘猛
  • 基金资助:
    农业部/财政部“现代农业产业技术体系专项资金”(CARS-07-13.5-A18)；公益性行业（农业）科研专项“浅山丘陵区谷子高效用水技术研究 集成与示范”(201303133-1-6)；河北省渤海粮仓科技示范工程项目“杂粮轻简高效生产及综合利用技术”。

Natural Precipitation and Yield of Corn: Correlation Analysis in Taihang Mountain Region Taking Wuan as an Example

  • Received:2016-09-27 Revised:2017-02-22 Accepted:2017-02-23 Online:2017-11-27 Published:2017-11-27

摘要： 太行山区是典型的旱作雨养农业区,降水是该区作物的主要水源。本文目的是研究太行山区降雨量对玉米单产的变化规律,指导玉米实际生产。选择武安市降雨量和玉米单产为研究对象,采用散点图、建立线性方程、线性回归显著性分析等方法,通过统计、对比描述等方式,分析了武安市降雨量对玉米单产的关系。结果显示降雨与玉米的单产之间具有一定关系,且生育期降雨量对玉米单产具有显著性影响。主要结论：1.在490mm降雨范围内,玉米的单产随着降雨量的增加而增加,大于490mm降雨时,玉米的单产与降雨量负相关。2.玉米的单产受7月和8月的降雨量影响显著,且降雨量约278mm时,玉米的单产较大。

关键词: 大连地区, 大连地区, 气温出现时间, 统计特征, 温度预报检验

Abstract: The paper aims to study the effect of precipitation change on corn yield in Taihang Mountain region, thus to guide corn production. We selected precipitation and per unit area yield of corm in Wuan as the study objects, and analyzed the relationship between the two by building linear equations and linear regression on scatter diagram, and ways of statistical and contrastive description. The results showed that: there was a certain relationship between precipitation and per unit area yield of corn, and the precipitation during the whole growth period had a significant effect on corn yield; (1) the per unit area yield of corn increased with the increase of precipitation within the precipitation level of 490 mm, and had a negative correlation with precipitation more than 490 mm; (2) precipitation in July and August significantly influenced per unit area yield of corn, and the highest yield was obtained at the precipitation level of 278 mm.