摘要
以关帝山林区内4种典型森林土壤为研究对象,通过开挖剖面观察土壤剖面构型并对土壤物理性状进行分析比较。结果表明:各林地土壤均有明显的枯落物层(A0)、腐殖质层(A)、淀积层(B)和母质层(C),不同林地枯落物层的厚度有较大差异,其厚度依次为:针阔混交林(9.4cm)>华北落叶松林(8.5cm)>杨桦阔叶林(6.7cm)>沙棘灌木林(4.8cm)。从土壤容重、孔隙度、毛管孔隙度以及团粒结构体含量等方面综合分析得出:针阔混交林地土壤的物理性状最好,其次是沙棘灌木林和杨桦阔叶林,华北落叶松林较差。建议在该区进行生态修复的营林过程中,加强对华北落叶松人工林的抚育管理,以改善其林下土壤理化性状。
Based on four kinds of typical forest soil in Guandi mountain Forest Region,the soil profile and soil physical properties in this area were observed through excavating soil profile.The results showed that：all forest soil presented obvious litter layer （A0）,the humus layer （A）,the deposited layer （B） and the parent material layer （C）.There were obviously difference in thickness of forest litters in different forest types,and the order was：the coniferous and broadleaved mixed forest（9.4 cm）＞the Larix forest（8.5 cm） ＞the broad-leaved forest（6.7 cm）＞the shrub（4.8 cm）.From the analysis of soil bulk density,porosity,capillary porosity,and aggregate structure content,this study draws a conclusion that the soil physical properties of the coniferous and broad-leaved mixed forest were the best,followed by the shrub of Hippophaer hamnoides and the broad-leaved forest of P.davidiana and B.platyphlla,and the Larix principis-rupprechtii forest was the worst.Therefore,the advice was given that in order to improve the soil physicalchemical properties of Larix principis-rupprechtii,cultivation and management should be carried on.
出处
《山西农业大学学报（自然科学版）》
CAS
2014年第2期157-161,共5页
Journal of Shanxi Agricultural University(Natural Science Edition)
基金
山西省水利科学技术项目(晋水财务[2013]303)
关键词
关帝山
土壤剖面
土壤物理性状
森林类型
Guandi mountain
Soil profile
Soil physical properties
Forest types
