水土保持学报2012，Vol.26Issue(2)：196-202,7.
冀北山地6种天然纯林枯落物及土壤水文效应
Hydrological Effects of Six Natural Pure Forests Litters and Soil in Northern Mountain of Hebei Province
摘要
Abstract
A preliminary study of hydrological effects of litters layer and soil layer was carried out in six kinds of natural forest stands in the slope of north mountain of Hebei province.The result showed that： ①The litter total storage capacity was about 3.44～23.97 t/hm2,which was in order of Betula platyphylla Suk.pure forest Pinus tabuliformis pure forest Populus davidiana pure forest Acer elegantulum pure forest Quercus mongolica pure forest Ulmus davidiana Planch pure forest,the maximum water holding capacity ranged from 5.16 t/hm2 to 45.11 t/hm2,which was in order of Acer elegantulum pure forest Populus davidiana pure forest Quercus mongolica pure forest Betula platyphylla Suk.pure forest Pinus tabuliformis pure forest Ulmus davidiana Planch pure forest.The modified interception amount of Populus davidiana pure forest was the strongest to 35.45 t/hm2,Ulmus davidiana Planch pure forest was the worst to 2.66 t/hm2.②Without decomposition litter in 8 h,and semi-decomposition litter reached saturation in 6 h,water holding capacity and soaking time of without decomposition litter and semi-decomposition litter both had visible logarithmic relationship,in first half-hour,the absorption rate was the largest,the rate was obviously slowed down after 4 h,the relationship of absorption rate and immersion time was power function.③The average of soil bulk density ranged from 0.82 g/cm3 to 1.14 g/cm3,total soil porosity was about 44.43%~56.97%.④The soil water-holding capacity of Acer elegantulum pure forest was the most powerful to 116.00 t/hm2,and Betula platyphylla Suk.pure forest was the worst to 40.50 t/hm2,infiltration rate and infiltration fit time was power function.关键词
冀北山地/天然纯林/枯落物/土壤/水文效应Key words
north mountain of Hebei province/natural pure forest/litters/soil/hydrological effect分类
农业科技引用本文复制引用
陈波,杨新兵,赵心苗,王永明,田超,刘阳,刘鹏..冀北山地6种天然纯林枯落物及土壤水文效应[J].水土保持学报,2012,26(2):196-202,7.基金项目
林业公益性行业科研专项子课题“冀北山区典型森林生态系统健康经营技术研究与示范” （）
