地理学报 ›› 1936, Vol. 3 ›› Issue (3): 529-532.doi: 10.11821/xb193603003

• 论文 • 上一篇    下一篇

我国之雨量变率

刘恩兰   

  • 出版日期:1936-07-15 发布日期:1936-07-15
  • 基金资助:

RAINFALL VARIABILITY OF CHINA

EN-LAN LIU   

  • Online:1936-07-15 Published:1936-07-15

摘要: 影响农作物之生长率,生长期,产量之多寡以及死亡率或死亡期之因素固多,然以气候为最著。而决定农作物之分布与种类,尤以温度与雨量为最重要。例如稻米之优良环境为三十吋以上之雨量,与至少八个月之生长期。小麦集中於冬季乾燥之黄河三角洲及淮河流域。高梁与小米具有耐旱性,故在雨量极不可靠之华北,为夏季之主要作物。此二种作物对於环境之适应已甚悠久,但其收成之丰歉则受制於雨量之变率。

关键词:

Abstract: The factors that influence the rate of growth, length of life, fecundity, abundance, death rate, or time of appearance of vegetation are obviously climatic. And the rainfall and temperature conditions are the most important factors in defining the large areas of crop distribution and plant varieties.