小兴安岭3种原始红松林土壤物理性质研究  

The Physical Properties of Soil in Three Original Pinus koraiensis Forests in Xiaoxing′an Mountains of Northeastern China

作　　者：陈瑶 李云红 邵英男 刘玉龙 

机构地区：[1]黑龙江省森林工程与环境研究所省森林持续经营与环境微生物工程重点实验室,哈尔滨150081

出　　处：《林业科技》2015年第6期21-23,共3页Forestry Science & Technology

基　　金：黑龙江省森工总局青年基金(sgz JQ2012011);黑龙江省财政自拟项目(2013-01SCZ);黑龙江省财政自拟项目(2015-02SCZ);国家自然科学基金面上项目(41275154);国家自然科学基金青年科学基金项目(31400388)资助

摘　　要：以不同坡位的阔叶红松云冷杉红松林、椴树红松林和蒙古栎红松林为研究对象,对不同土层（0~10 cm、10~20 cm、20~30 cm）的土壤容重、土壤总孔隙度和土壤毛管孔隙度等物理性质进行研究的结果表明：同一林型不同土层之间,土壤容重随土层深度增加而逐渐增大,土壤总孔隙度随土层深度增加而逐渐减小。同一土层深度不同林型之间,在0~10 cm时,土壤容重和土壤总孔隙度在3种林型之间存在极显著性差异（P〈0.01）和显著性差异（P〈0.05）,土壤毛管孔隙度在蒙古栎红松林和云冷杉红松林之间存在极显著差异（P〈0.01）;在10~20 cm和20~30 cm,土壤容重和土壤孔隙度在3种林型之间无显著性差异（P〉0.05）,土壤毛管孔隙度在蒙古栎红松林和椴树红松林与云冷杉红松林之间存在极显著性差异（P〈0.01）,其他两个林型差异不显著（P〉0.05）。In Xiao Xing＇an Mountains of northeastern China, Picea sp., Abies nephlolepis-Pinus koraiensis forest,Tilia-Pinus koraiensis forest and Quercus mongolica-Pinus koraiensis forest along elevation gradient were selected for this study, and soil samples were analyzed for the soil bulk density, soil porosity and soil capillary porosity. The results showed that soil bulk density is increased with deepen in soil layer, however soil porosity is reduced with deepen in soil layer. In 0 ~10 cm soil layer, soil bulk density and soil porosity are extremely significant（P0.01） and significant（P0.05） difference among different forests. There is extremely significant difference（P0.01） in soil capillary porosity between Quercus mongolica-Pinus koraiensis forest and Picea sp., Abies nephlolepis-Pinus koraiensis forest. In 0~10 cm and 10~20 cm soil layer, there are no significant difference（P 0.05） in soil bulk density and soil porosity among different forests, but there is extremely significant difference（P0.01） in soil capillary porosity between Quercus mongolica-Pinus koraiensis forest and Tilia-Pinus koraiensis forest, Quercus mongolica-Pinus koraiensis forest and Picea sp., Abies nephlolepis-Pinus koraiensis forest. In 0~10 cm and 10~20 cm soil layer, there is no significant difference（P 0.05） in soil capillary porosity between Tilia-Pinus koraiensis forest and Quercus mongolica-Pinus koraiensis forest.

关 键 词：云冷杉红松林 蒙古栎红松林 椴树红松林 土壤物理性质 

分 类 号：S714.2[农业科学—林学] S791.247