摘要
研究了青海省黄土丘陵区13种林分类型的枯落物层持水能力,并以荒山荒坡作为对照样地研究其表层土壤物理性质与持水能力。结果表明：不同植被类型,枯落物层平均蓄积量为混交林〉针叶林〉阔叶林,而平均最大持水量为混交林〉阔叶林〉针叶林,枯落物层平均厚度和平均有效持水量呈现相同规律,为阔叶林〉混交林〉针叶林;其土壤表层的总孔隙度、非毛管孔隙度均与枯落物层平均蓄积量呈现相同规律,且有林地土壤有效持水量是对照样地荒山荒坡的2.47-4.07倍。
The article studied the water-holding ability of litter and physical characteristics of superficial soil with barren hills as control in 13 different forest distributions in Loess Hilly Region of Qinghai Province.The result showed that in the different vegetation types,the average storage of litter is mixed forestconiferous forest〉 broadleaf forest,and the mean of the maximum water capacity is mixed forest〉 broadleaf forest〉coniferous forest,and the average thickness and the mean of the effective water storing capacity is the same sequence,which is broadleaf forest mixed forest〉coniferous forest;the total porosity and non-capillary porosity of soil is the same order as the average storage of litter,and the effective water storing capacity of soil in forest land is higher from 2.47 to 4.07 than barren hills.
出处
《水土保持学报》
CSCD
北大核心
2009年第5期104-108,共5页
Journal of Soil and Water Conservation
关键词
黄土丘陵区
枯落物层
持水能力
土壤物理性质
Loess Hilly Region litter water-holding ability physical characteristics of soil
