地理学报 ›› 1956, Vol. 22 ›› Issue (2): 121-133.doi: 10.11821/xb195602001

• 论文 •    下一篇

食物来源与人口增长

孙敬之   

  1. 中国人民大学经济地理教研室
  • 出版日期:1956-04-15 发布日期:1956-04-15
  • 基金资助:

SOURCES OF FOOD AND INCREASE OF POPULATION

Sun Ching-chih   

  1. Institute of Geography, Academia Sinica
  • Online:1956-04-15 Published:1956-04-15

摘要: “食物来源与人口增长”问题,是一个十分庞大而复杂的问题,它联系到社会制度、生产技术、社会习惯、卫生条件、食物热量与营养……等许多方面。

关键词:

Abstract: According to the Yearbook of Food and Agricultural Statistics, Part one, Vol.Ⅷ, 1953, there are in the whole world altogether 13,300,000,000 hectares of cultivated lands (including orchards), constituting, roughly speaking, 9% of tillable land on earth, to say the most.