| 郭海英.陇东黄土高原冬小麦生产农业气象要素分析[J].干旱地区农业研究,2004,(2):123~126 |
| 陇东黄土高原冬小麦生产农业气象要素分析 |
| Correlation analysis of climatic factors during different growth periods and output of winter wheat in eastern Gansu |
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| DOI：10.7606/j.issn.1000-7601.2004.02.26 |
| 中文关键词: 冬小麦 气象要素 产量 |
| 英文关键词:winter wheat meteorological factor yield |
| 基金项目:甘肃省自然科学基金项目(YS981-A21-024) |
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| 中文摘要: |
| 对陇东黄土高原半湿润半干旱气候区旱地冬小麦生长期光、热、水三要素与产量进行了相关分析,得出对冬小麦产量起决定作用的农业气象要素为:孕穗—成熟期光照时数,≥0℃积温,开春土壤含水量+返青—孕穗期降水量(R2+3H)。建立了逐步回归方程,Y=-317.138+0.6317X1+0.4647X2。 |
| 英文摘要: |
| This article analyzes the effects of sunlight, temperature and precipitation during different periods on the output of winter wheat in the Semi-humid and Semi-arid loess region of eastern Gansu. The result shows that the sunlight hours and ≥0℃ accumulated temperature during booting to mature stage, and the soil water content at early spring + the precipitation during reviving to booting stage (R2+3H) are the determinative agricultural climate factors to the output of winter wheat. Futhermore, the regression equation is set up. |
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