晋西半干旱黄土地区典型林分枯落物及土壤水文效应  

Hydrological Effects of Typical Forest Litters and Soil in Semi-arid Loess Area of West Shanxi Province

作　　者：陈琳[1] 赵廷宁[1] 赵陟峰[1] 

机构地区：[1]北京林业大学水土保持学院水土保持与荒漠化重点实验室,北京100083

出　　处：《安徽农业科学》2011年第23期14106-14108,共3页Journal of Anhui Agricultural Sciences

基　　金：国家"十一五"科技支撑计划课题"黄土高原丘陵沟壑半干旱区水土保持抗旱造林及径流林业技术试验示范(2006BAD03A1201)

摘　　要：对半干旱黄土地区林地枯落物及土壤的水文效应进行初步研究。结果表明,花果山林地枯落物的年蓄积量为1.45～17.92t/hm2,最大持水量在0.4～1.9 mm,其中落叶松/油松、油松/刺槐混交林枯落物具有较强的持水作用。采用方差分析不同林分前6 h枯落物持水量存在极显著差异。土壤物理性质测定表明,花果山林地土壤具有较强的持水能力,1 m深土壤的饱和持水力在64.63～109.96 t/hm2范围变动。As indicated by the preliminary study on the hydrological effect of typical forest litters and soil in semi-arid loess area,the annual stock of Huaguoshan forest litter was about 1.45-17.92 t/hm2 and the maximum water-holding volume ranged from 0.4 to 1.9 mm,the litters from the mixed Larix gmelinii and Pinus tabuliformis forest as well as the mixed Pinus tabuliformis and Robinia pseudoacacia L.forest had stronger water-holding capacity.Variance analysis showed that the water-holding capacity of different forests differed largely at the first six hours.Soil physical properties measurements showed that the forest soils of Huaguoshan had high water-holding capacity,which ranged from 64.63-109.96 t/hm2 at the 1 m.

关 键 词：枯落物 土壤持水力 水文效应 黄土地区 

分 类 号：S718.52[农业科学—林学]