植物生态学报 ›› 2002, Vol. 26 ›› Issue (4): 497-500.

• 简报 • 上一篇    下一篇

山杨林的水文生态环境效应研究

赵鸿雁,吴钦孝,刘国彬   

  • 出版日期:2002-04-10 发布日期:2002-04-10
  • 通讯作者: 赵鸿雁

Studies on Hydro-Ecological Effects of Populus davidiana Stand

ZHAO Hong-Yan, WU Qin-Xiao and LIU Guo-Bin   

  • Online:2002-04-10 Published:2002-04-10
  • Contact: ZHAO Hong-Yan

摘要: 用定位观测的方法研究了山杨林(Populus davidiana)的水文生态效应。结果表明,山杨林6年林冠总截流量为309.5 mm,平均截留率为13.5%;山杨林的树干茎流率为3.3%;6年枯枝落叶的截流量为176.3 mm,截留率为7.7%;山杨林地的容重、总孔隙度、毛管孔隙度、非毛管孔隙度分别比荒坡提高18.6%、13.8%、3.2%和59.8%;山杨林地的有机质、全氮、速效氮和阳离子交换量分别比农地增加1.6倍、1.1倍、1.3倍和0.65倍;山杨林地比采伐林木垦为农地的地表径流量和土壤侵蚀量大大

关键词: 山杨林, 水文, 生态, 效应

Abstract: Hydro-ecological effects of Populus davidiana stand have been studied in the paper using long-term observation. The results of the studies show that the total intercepted amount in canopy of the stand in six years is 309.5 mm, and the average intercepting

Key words: Populus davidiana stand, Hydrology, Ecology, Effect