摘要
分析了油松人工林各部分的水土保持作用,及根系层的渗透和不同处理林地的产流产沙量。结果表明,林冠层和枯枝落叶层的截留率分别为19.76％和9.3％;枯枝落叶层阻延径流流出时间与其厚度呈正比例关系,且给出了与其被影响因子之间的回归方程。
Describes the soil and water conservative function on artificial Chinese pine (Pmus tabulaeformis Carr. )forest. The rate of interception by canopy layer and litter layer was 19. 76% and 9. 3% respectively. The retarding time of runoff by litters is positively proportional to the thickness of litter layer. A regressive equation of retarding time of runoff by litters and factors affected is given. The infiltration of root system and the amounts of runoff and sediments in different treated woodlands are also analysed.
出处
《西北林学院学报》
CSCD
1993年第1期9-14,共6页
Journal of Northwest Forestry University
基金
国家自然科学基金
关键词
油松
人工林
径流
水土保持
Chinese pine
artificial forest
canopy
litter layer
runoff
interception
