水土保持学报2011，Vol.25Issue(2)：97-103,7.
冀北山地阴坡枯落物层和土壤层水文效应研究
Hydrological Effects of Forest Litters and Soil in the Slope of North 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: (1)The litter total storage capacity and the maximum water holding capacity showed this order: Larix principic-rupprechtii-B. platyphylla-B. davurica＞B. platyphylla-Larix principic-rupprechtii＞B. platyphylla-B.davurica-Larix principic-rupprechtii ＞ Quercus mongolica-B. davurica ＞ Populus davidian-B. davuricaQuercus mongolica＞B. platyphylla-B. davurica, the litter total storage capacity was about 10. 15～30.47 t/hm2, the maximum water holding capacity ranged from 24. 33 t/hm2 to 63.57 t/hm2. The modified interception amount of Larix principic-rupprechtii-B. platyphylla-B. davurica was the strongest to 48. 60 t/ hm2, Populus davidian-B. davurica-Quercus mongolica was the worst to 16. 47 t/hm2. (2)Water holding capacity and soaking time of without decomposition litter and semi-decomposition litter both had visible logarithmic relationship, the relationship of absorption rate and immersion time was power function. (3)The average of soil bulk density ranged from 0.89 g/cm3 to 1.18 g/cm3 , total soil porosity was about 49.93％～ 63.08％. With the deepening of the soil thickness, soil bulk density was increased, but total soil porosity was decreased, which pointed that the surface soil was loose. (4)The soil water-holding capacity of Populus davidian-B. davurica-Quercus mongolica was the most powerful to 65.43 t/hm2 , and Larix principic-rupprechtii-B. platyphylla-B. davurica was the worst to 37.92 t/hm2 , using power function of infiltration rate and infiltration fitting time, the correlation coefficient was above 0.95.关键词
冀北山地/枯落物/林地土壤/水文效应Key words
north mountain of Hebei province/ forest litters/ forest soil/ hydrological effect分类
农业科技引用本文复制引用
田超,杨新兵,李军,曹云生,张伟,刘阳,毕可姣..冀北山地阴坡枯落物层和土壤层水文效应研究[J].水土保持学报,2011,25(2):97-103,7.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"(200804022F) （200804022F）
