地理科学 ›› 1999, Vol. 19 ›› Issue (6): 532-535.doi: 10.13249/j.cnki.sgs.1999.06.532

• 论文 • 上一篇    下一篇

陕、甘干旱地区不同时段地表径流递减率的分析

延军平1, 汪西莉2, 孙虎1, 陈林1   

  1. 1. 陕西师范大学旅游与环境学院 陕西 西安710062;
    2. 陕西师范大学计算机科学系 陕西 西安710062
  • 收稿日期:1998-10-06 修回日期:1999-02-09 出版日期:1999-11-20 发布日期:1999-11-20
  • 基金资助:
    国家“九五”重点科技项目资助(攻关)“中国21世纪议程实施能力建设及可持续发展适用新技术”(96-920-13-01)

On Progressive Decrease Rate of Surface Runoff at Different Periods in Arid Regions of Shaanxi and Gansu Provinces

YAN Jun-ping1, WANG Xi-li2, SUN Hu1, CHEN Lin 1   

  1. 1. College of Tourism and Environmental Sciences, Shaanxi Normal University, Xi’an Shaanxi 710062;
    2. Department of Computer Sciences, Shaanxi Normal University, Xi’an Shaanxi 710062
  • Received:1998-10-06 Revised:1999-02-09 Online:1999-11-20 Published:1999-11-20

摘要: 根据陕西、甘肃部分地区气象、水文实测资料的分析,证明本区径流系数在逐年下降。在径流减少原因中,当时间尺度分别为40年、30年、20年、10年时,自然因素导致的径流递减率分别为17.5%,34.2%,51.7%,70.3%,径流量分别减少0.14%,0.34%,0.52%,1%.

Abstract: Based on climatic and hydrologic data in some regions of Shaanxi and Gansu provinces the decrease of surface runoff year by year has been proved. When time scales are 40,30,20 and 10 years the proportion of decrease of surface runoff caused by natural factors are 17.5%,34.2%,51.7% and 70.3% respectively and the proportion of decrease of surface runoff are 0.14%,0.34%,0.52% and 1% respectively.

中图分类号: 

  • P333.1