摘要
对长白山北坡阔叶红松林和暗针叶林的土壤水分物理性质进行了观测和对比分析.结果表明:两种森林类型的土壤容重和各种孔隙度随土壤深度的变化趋势相同,即随着土壤深度的增加,容重和毛管孔隙度逐渐增加,总孔隙度和非毛管孔隙度逐渐降低;两种森林类型土壤物理性质的差异比较明显,阔叶红松林0～100cm土层的平均土壤容重、总孔隙度、毛管孔隙度和非毛管孔隙度分别为1.41g.cm-3、52.31%、46.11%和6.20%,暗针叶林地土壤分别为0.98g.cm-3、50.65%、40.32%和10.33%;阔叶红松林和暗针叶林地土壤100cm土层贮水能力相差较大,分别为619.89和1033.05t.hm-2.两种森林类型的土壤水分特征曲线与一般土壤水分特征曲线相一致.
The measurement of soil hydro-physical properties under broadleaved Korean pine and dark coniferous forests on the northern slope of Changbai Mountains showed that under these two forest types, soil bulk density and porosity had the same variation trend with increasing soil depth, i. e. , bulk density and capillary porosity increased, while total porosity and non-capillary porosity decreased. The average bulk density, total porosity, capillary porosity and non-capillary porosity in 0-100 cm soil layer were 1.41 g · cm^-3, 52.31% , 46. 11% and 6. 20% under broadleaved Korean pine forest, and 0. 98 g · cm^-3 50. 65% 40. 32% 10. 33% under dark coniferous forest respectively. Owing to the differences in soil hydro-physical properties, the water storage capacity in 0-100 cm soil layer was 619.89 t · hm^-2 under broadleaved Korean pine forest, but 1 033.05 t · hm^-2 under dark coniferous forest. For these two forests, their soil water characteristic curves were consistent with the general one.
出处
《应用生态学报》
CAS
CSCD
北大核心
2007年第2期272-276,共5页
Chinese Journal of Applied Ecology
基金
国家重点基础研究发展规划项目(2002CB111503)
中国科学院百人计划资助项目
关键词
长白山
土壤水分物理性质
阔叶红松林
暗针叶林
Changbai Mountains
soil hydro-physical properties
broadleaved Korean pine forest
dark coniferous forest
