冀北山地不同坡位油松林枯落物水文效应  

Litter hydrological effects of Pinus tabulaeformis forest at different slope positions in northern mountain of Hebei

作　　者：凌继华[1] 崔立奇[1] 张章[1] 

机构地区：[1]河北省木兰围场国有林场管理局,河北围场068450

出　　处：《河北林果研究》2015年第2期117-121,共5页Hebei Journal of Forestry and Orchard Research

摘　　要：对冀北山地不同坡位油松林枯落物层水文效应进行初步研究,结果表明：枯落物层总厚度范围为35-90mm,总蓄积量变动范围为34.93-62.93t/hm2;坡上样地Ⅰ枯落物总蓄积量和最大持水量分别为62.93t/hm2和361.71t/hm2,均远大于其他坡位样地;枯落物持水量与浸泡时间呈明显对数关系（R〉0.94）,吸水速率与浸泡时间呈明显幂函数关系（R〉0.95）。The preliminary study on hydrological effect of Pinus tabulaeformis forest litter layer at different slope positions in north mountain of Hebei Province was conducted.The results showed that the thickness of litter layer was 35-90mm,with the variation range of total volume quantity at 34.93-62.93t/hm2.The total volume and the maximum water holding capacity of the slope plot litter were 62.93t/hm2 and 361.71t/hm2,respectively,which were much larger than anyone of the other slope positions.There exists an obvious logarithmic relationship between the litter water holding capacity and immersion time（R0.94）,and an obvious power function relationship between the water absorption rate and immersion time（R 0.95）.

关 键 词：冀北山地 油松 枯落物水文 坡位 

分 类 号：S791.254[农业科学—林木遗传育种]