摘要
对马尾松水土保持林的截水与持水功能进行了计量研究．结果表明：林冠的截水量与冠层枝叶生物量呈正相关；林分的截雨量和降雨量的关系可用Ｒｉｃｈａｒｄｓ函数较好地拟合；灌木的截水能力与其叶质叶形有关，林分枯落物不仅具有较强的特水能力，还能明显改善土壤结构；土壤的非毛管孔隙度受植被因素的显著影响．并提出了各植被因子的持水模型和土壤孔隙度预测模型．
Metrological studies of crown interception and water-holding functions of Pinus massoniana forest for water and soil conservation have been carried out. The results show that the quantity of intercepted water by the crown is positively related to the biomass of its branches and leaves; that the relation between the amount of crown interception and the rainfall can be well described by Richard's Function; that the capacity of water-interception by shrubs is related to the texture and the shape of their leaves; that the litter of forest not only has large capacity of water-interception but also can improve the soil structure; and that the percentage of non-capillary pore of the soil can be affected significantly by the vegetation factors. Finally, some water-holding models of the vegetation factors and some forecasting models of the percentage of soil pore have been presented.
出处
《中南林学院学报》
CSCD
1996年第3期1-8,共8页
Journal of Central South Forestry University
基金
国家"八五"攻关课题
关键词
马尾松
水土保持林
水文功能
Pinus massoniana
forest for water and soil conservation
hydrological function
