水土保持通报2012，Vol.32Issue(4)：71-74,4.
冀北山地油松和落叶松林下枯落物的水文效应
Hydrological Effects of Pinus Tabulae f ormis and Larix Princpis Forest Litters in North Mountain of Hebei Province
摘要
Abstract
This study investigated water-holding characteristics of Pinus tabulaeformis and Larix princpis forest litter found in Mulan--Weichang National forest farm. The results show that in the Pinus tabulaefor- mis and Larix princpis forests, the litter was as thick as 6.1 and 4.0 cm, with total water holding capacity of 33.93 and 43.16 t/hm2 , absorbed water contents of 268.10 g and 157.54 g（measured after 24 h immer- sion）, and effective interception capacity of 30.07 and 57.56 t/hm2 , respectively. The litters of Pinus tabu- laeformis and Larix princpis showed similar water-holding capacity, water absorption rate and soaking time. Overall, the relationship between litter water-holding capacity and soaking time was described well with a logarithmic curve, and that between the water absorption rate and soaking time was fitted well with a power function. The water absorption rate was fastest in the initial 0-4 h, decreased gradually in 4-8 h after immersion, and the water content reached its maximum water-holding capacity after 10 h.关键词
油松/落叶松/枯落物/水文效应/持水量Key words
Pinus tabulaeformis/Larix principis/forest litters/hydrological effect/water-holding capacity分类
农业科技引用本文复制引用
梁文俊,丁国栋,周美思,臧荫桐,贺宇,安云,高广磊,包岩峰..冀北山地油松和落叶松林下枯落物的水文效应[J].水土保持通报,2012,32(4):71-74,4.基金项目
国家林业局林业公益性行业科研项目“典型区域森林生态系统健康维护与经营技术研究” （）
