自然资源学报

自然资源学报 ›› 1988, Vol. 3 ›› Issue (2): 162-173.doi: 10.11849/zrzyxb.1988.02.007

• 论文 • 上一篇    下一篇

黄土高原蒸发力的计算和应用——兼谈改善生态环境的途径

王菱, 倪建华   

  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:1988-06-25 发布日期:1988-06-25

THE CALCULATION AND USE OF THE POTENTIAL EVAPOTRANSPIRATION FROM LOESS PLATEAU,——ABOUT THE WAYS OF ECOLOGICAL ENVIRONMENT REMEDY

Wang Ling, Ni Jianhua   

  1. Commission for Integrated Survey of Natural Resources, Chinese Academy of Sciences
  • Online:1988-06-25 Published:1988-06-25

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被引次数

6

摘要： 蒸发力是气候学上的一个重要特征量。在水利工程设计、灌溉定额的制定、农林牧的合理布局需要以蒸发力资料为依据。彭曼公式具有较可靠的物理基础和计算精度较高的优点,在国际上得到了广泛的应用。我国某些学者在运用该公式时,未考虑海拔高度对蒸发力的影响,因此在高海拔地区应用彭曼公式会产生较大的误差。 本文应用高度订正后的彭曼公式:计算了黄土高原地区的蒸发力。 森林减弱了近地层风速,降低了该地区的蒸发力,农田水分状况得到了改善。

关键词: 黄土高原, 蒸发力, 生态环境

Abstract: The potential evapotranspiration is an important characteristic value in climatology. The water conservancy project, the planning of irrigation requirement and the rational distribution of agriculture, forest and animal husbandry, all are based on the potential evapotranspiration. The formula of Penman has the advantages of more reliable physical basis and higher computed precision. It has been widely applied by the countries in the world. But when it was applied by the scholars in China, they d...

Key words: Loess Plateau, Potential evapotranspiration, Ecological environment