首页 | 本学科首页   官方微博 | 高级检索  
     检索      

秦岭辛家山林区锐齿栎林水源涵养功能的若干特点
引用本文:杨茂生,陈海滨.秦岭辛家山林区锐齿栎林水源涵养功能的若干特点[J].西北林学院学报,1991,6(1):1-8.
作者姓名:杨茂生  陈海滨
作者单位:西北林学院森林资源保护系 (杨茂生,陈海滨),西北林学院森林资源保护系(高甲荣)
摘    要:通过2年对秦岭辛家山林区锐齿栎林的初步研究,结果表明该林分在水源涵养功能方面有以下特点:锐齿栎林下的穿透降水量分布极不均匀,变异系数为17.5~43.5%;在一次性降水过程中,林冠对降水的最大截持能力为3.8~8.5mm,并随林木的生长发育时期有所变化;林下枯枝落叶层的最大持水率为419~430%,对一次降水的有效蓄留能力为4.6~5.2mm;林地0~60cm土壤的有效蓄水量为605.4~667.8t/ha,是锐齿栎林生态系统中最大的水分贮存器和调节器;锐齿栎林林冠层、枯枝落叶层和土壤层对一次降水的最大调节能力为68.9~80.1mm,加之林地土壤有6.1~8.8mm/min的下渗率,因此锐齿栋林下很少出现地表径流。

关 键 词:锐齿栎林  水源涵养  林冠截持  秦岭

Characteristics of Water Reservoir Function of Quercus aliene var. acuteserrata Forest in Xinjiashang Forest Region, Qinling Mountain
Yan Maosheng Cheng Haibin Gao Jiarong.Characteristics of Water Reservoir Function of Quercus aliene var. acuteserrata Forest in Xinjiashang Forest Region, Qinling Mountain[J].Journal of Northwest Forestry University,1991,6(1):1-8.
Authors:Yan Maosheng Cheng Haibin Gao Jiarong
Institution:Dept. of Forest Resource Conservation
Abstract:Describes the characteristics of water reservior function of Quercus aliena var. acuteserrata forest.1. The uneven distributied throughfalls varied from 17.5% to 43.5%.2 . The maximum canopy interception of a single preciptation amounted to 3.8-8.5mm and it was varied with the tree growing and developing period.3 . The maximum water holding capacity of litter layer reached 419-430%, and its effective holding capacity for a single preciptation was4.6-5.2mm.4. Effective holding caqacity of surface and under soil layer (0-60 cm) amounted to 605.4-667.8t/ha, being the largest water reservior and regulator in the Quercus aliena var. acuteserrata forest ecosystem. 5 . The maximum regulating capacity of the forest canopy, litter and soil layer of a single preciptation amounted to 68.9-80.1mm, and the infiltration rate of the forest soil was 6.1-8.8mm/min. Therefore, surface runoff seldom took place.
Keywords:Qinling Mountain  Xinjiashang  Quercus allena var  acuteserrata  Water reservior function  Canopy interception  Litter layer  Soil of forest land
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号