| 华北平原降水量对冬小麦产量的影响 |
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| 引用本文： | 盧其堯.华北平原降水量对冬小麦产量的影响[J].气象学报,1963,33(3):392-398. |
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| 作者姓名： | 盧其堯 |
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| 作者单位： | 中国科学院地理研究所 |
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| 摘 要： | 本文根据华北平原1955—1957年11个地点的冬小麦产量和降水量資料,利用R.A.Fisher等人提出的正交多項式方法,計算了华北平原降水量对冬小麦产量的效果,得到三点初步結果:①生长期降水总量与多小麦产量之間存在高度相关,②在生长期中的任何时間,“附加”降水都使产量增加,;③“附加”降水所产生的最大的良好效果出現在越冬始期和开花期附近,此时每1毫米“附加”降水可以使产量增加約为0.4—0.45斤/亩。
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| 收稿时间： | 1962/8/22 0:00:00 |
| 修稿时间： | 2/1/1963 12:00:00 AM |
THE INFLUENCE OF RAINFALL ON THE YIELD OF WINTER WHEAT IN NORTH CHINA |
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| LU CHI-YAO.THE INFLUENCE OF RAINFALL ON THE YIELD OF WINTER WHEAT IN NORTH CHINA[J].Acta Meteorologica Sinica,1963,33(3):392-398. |
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| Authors: | LU CHI-YAO |
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| Institution: | Institute of Geography, Academia Sinica |
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| Abstract: | The influence of rainfall on the yield of, winter wheat in North China has been estimated by the application of R. A. Fisher's method}l}3} of orthogonal polynomials. Data of winter wheat yield during 1955-57 of 11 localities in North China have bean.. used. The results show: 1) a high correlation between the total rainfall of the growing season and the yield, 2) an increase in the yield caused by an additional rainfall at any time during the growing season 3) the highest effect of additional rainfall on the yield occurs during early wintering and around blooming stages. During. these two stages every. additional milimeter of rainfall may increase 0.4-0.45. catty per mou. |
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