地理学报 ›› 1957, Vol. 23 ›› Issue (2): 183-203.doi: 10.11821/xb195702006

• 论文 • 上一篇    下一篇

中国境内农业指标温度的出现日期、持续日数与积算温度

么枕生   

  1. 南京大学气象系气候专业
  • 出版日期:1957-04-15 发布日期:1957-04-15
  • 基金资助:

AGRICULTURAL CHARACTERISTIC TEMPERATURES AND ACCUMULATED TEMPERATURES IN CHINA

C. S. Yao   

  1. University of Nanking
  • Online:1957-04-15 Published:1957-04-15

摘要: 所谓农业指标温度就是能指示农业作业的温度,日平均温度0°、5°、10°、15℃和10℃以上温度的积算温度等就是这种农业指标温度。春季日平均温度0℃出现日期就代表冬季已过、积雪融解与土壤解冻的开始日子。秋季日平均温度0℃出现的日子就代表土壤开始冻结和田间耕作中止的日子。

关键词:

Abstract: The so-called "agricultural characteristic temperature" denotes the daily mean temperature of 0°, 5°, 10° or 15°C and accumulated temperatures of 10°C up. Every different mean temperature is chaaacteristic of a certain rural phenomenon, e,g., daily mean temperature above 0°C charactsrizes the farming season; above 5°C, the period of growth; above 10°C, the time of buoyant growth; and above 15°C, the period for planting cotton and rice. The accumulated temperatures of 10°C up are to a certain degree correlated with the distribution of crops.