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林业科学 ›› 1995, Vol. 31 ›› Issue (5): 403-407.

• 论文及研究报告 • 上一篇    下一篇

大兴安岭森林火灾对河川径流的影响

蔡体久,周晓峰,杨文化   

  1. 东北林业大学 哈尔滨1 50040
  • 收稿日期:1994-03-28 出版日期:1995-09-25 发布日期:1995-09-25

THE EFFECTS OF FOREST FIRE ON STREAMFLOW IN DAXINGANLING

Tijiu Cai,Xiaofeng Zhou,Wenhua Yang   

  1. Northeast Forestry University Harbin 150040
  • Received:1994-03-28 Online:1995-09-25 Published:1995-09-25

摘要:

采用单独流域实验法, 利用长期定位观测数据, 对森林火灾后河川径流的变化进行了研究。结果表明:大兴安岭特大森林火灾后, 河川年径流量明显增加, 5月份融雪径流量有减少趋势。火烧后, 森林对水分循环的调控能力减弱, 径流的变化更加依赖于降雨。

关键词: 森林火灾, 年径流量, 融雪径流, 相关关系

Abstract:

Based on the data obtained by single watershed experiment, the changes in streamflow by forest fire were studied. The results showed the forest fire in Daxinganling in 1987 resulted in the increase of annual runoff obviously in the initial stage, the runoff of melting snow in May tended to reduce. After forest fire, the ability to regulate the water circulation of forest was reduced, and the changes in streamflow depended on the precipitation even more.

Key words: Forest fire, Annual runoff, Runoff of melting snow, Correlation analysis