自然资源学报 ›› 1990, Vol. 5 ›› Issue (1): 84-90.doi: 10.11849/zrzyxb.1990.01.010

• 学报动态 • 上一篇    下一篇

论我国降水丰度和适度

黄让堂   

  1. 中国科学院国家计划委员会自然资源综合考察委员会
  • 出版日期:1990-03-25 发布日期:1990-03-25

ON THE ABANDANCE AND FITNESS OF PRECIPITATION IN CHINA

Huang Rangtang   

  1. Commision for Integrated Survey of Natural Resources, Chinese Academy of Sciences
  • Online:1990-03-25 Published:1990-03-25

摘要: 本文以全球陆地年平均降水量、农田蒸散量和作物需水量等指标为尺度,衡量我国降水量的丰度,从降水的时空分布,及其稳定性等方面评价我国降水量的适度,从经济现状分析我国降水条件对国土开发的影响程度,并和欧美各国对比,说明我国降水条件的优劣程度,指出我国的降水条件和降水量不是黄万里先生所说的那样优越和丰富。

关键词: 降水量, 蒸散量, 降水变率, 保证率, 干燥度

Abstract: In this paper, the abandance of precipitation in China is weighed by some factors such as the mean annual precipitation of the whole world, crop evapotranspiration, and the water requirment of crops. The fitness of precipitation in China is evaluted by the spatial and temporal distribution of precipitation, the stability of precipition and so on. And the influence of precipitation conditions on the exploitation of land resources is analysed from the standpoint of present economic conditions. Besides, the superiority and inferiority of China's precipitation conditions are compared with those of the comitries in Europe and America. The results show that the conditions and amount of precipitation in China are not so superior and abandant as those discribed by professor Hang Wanli.

Key words: precipitation, evapotranspiration, the rate of precipitation variability, assurance rate, aridity