文献类型：期刊文献

中文题名：枯落物层对六盘山华北落叶松人工林土壤性质的影响

英文题名：Effects of Forest Litters on Soil Physicochemical Properties of Larixprincipis-rupprechtii Plantations in Liupan Mountains of Ningxia, China

作者：樊亚鹏[1] 高迪[1,2] 王晓[3]

第一作者：樊亚鹏

机构：[1]固原市林业局西峡林场,宁夏固原756400;[2]北京林业大学水土保持学院,北京100083;[3]中国林业科学研究院森林生态环境与保护研究所,北京100091

年份：2019

卷号：0

期号：20

起止页码：6-9

中文期刊名：绿色科技

外文期刊名：Journal of Green Science and Technology

基金：宁夏回族自治区农业科技自主创新专项全产业链创新示范项目(QCYL-2018-12);国家重点研发计划项目(2016YFC0501603、2017YFC0504602);国家自然科学基金项目(41671025、41230852)

语种：中文

中文关键词：六盘山;华北落叶松;枯落物;土壤物理-水文性质

外文关键词：Liupan Mountain;Larixprincipis-rupprechtii;forest litters;soil hydrology-physical properties

分类号：S714

摘要：为探究枯落物层对六盘山华北落叶松人工林土壤物理、水文性质的影响,于2017年通过设置不同密度的华北落叶松人工林枯落物保留/去除样地,调查了枯落物保留/去除样地林下土壤物理和水文性质的差异。结果表明:枯落物层能够增加土壤的孔隙度、土壤蓄水和渗透能力,去除地表枯落物(LR)和保留枯落物(CK)两种林分在0~100 cm土层中平均容重分别为1.38 g/cm^3和1.30 g/cm^3,平均总孔隙度分别为44.88%和49.74%,毛管孔隙度分别为36.33%和42.56%,非毛管孔隙度表现为8.55%和7.19%,LR和CK土壤初渗速率变化为6.25和7.98 mm/min,土壤稳渗速率范围为3.81和5.22 mm/min,土壤平均入渗速率LR和CK分别为4.38和5.64 mm/min。以上结果说明了枯落物层会显著影响华北落叶松人工林的土壤物理水文性质。
In order to explore the impacts of forest Litters on soil physicochemical propertiesof Larixprincipis-rupprechtii plantations,this study selected two different densities of Larixprincipis-rupprechtii plantation with litters keep/removal in the small watershed of Xiangshuihe in Liupan Mountain in 2017.The soil physicochemical properties of Larixprincipis-rupprechtii plantations were surveyed.Our result show that the response of soil hydrological and physical properties to the removal of litter was studied,and the result indicated that in the 0~100cm soil layer,the average bulk density of the removal of surface litter(LR)and the retention of litter(CK)were 1.38g/cm^3 and 1.30g/cm^3.The average total porosity of LR and CK were 44.88%and 49.74%.Capillary porosity was 36.33%and 42.56%.The non-capillary porosity was 8.55%and 7.19%respectively.The soil infiltration rates of LR and CK were 6.25 and 7.98mm/min respectively.The range of soil steady infiltration rate was 3.81 mm/min and 5.22 mm/min.The average soil infiltration rates of LR and CK were 4.38 and 5.64 mm/min.