北京西山地区森林土壤微形态的研究  

The micro-morphology of forest soil in West mountain of Beijing

作　　者：乔永[1] 孙向阳[1] 李素艳[1] 王勇 郭晓晓[3] 

机构地区：[1]北京林业大学水土保持学院,北京100083 [2]北京林业大学实验林场,北京100083 [3]北京林业大学林学院,北京100083

出　　处：《中南林业科技大学学报》2010年第10期29-33,共5页Journal of Central South University of Forestry & Technology

基　　金：科技基础性工作专项(2007FY210300)

摘　　要：为了解北京西山地区森林土壤微形态状况,在野外土壤调查的基础上,应用化学分析方法和土壤显微技术,研究了鹫峰国家森林公园下部和中上部的土壤化学性质、土壤骨骼颗粒、有机质、孔隙、土壤形成物及微结构等特征。结果表明:样区内土壤骨骼颗粒均以石英为主,形成物主要以铁锰浓聚物为主;公园中上部土壤各分解状态有机质含量丰富,具有多级团聚体,孔隙分布均匀,微结构发育良好,结构稳定,生态环境保护良好,C层发现有铁锰浓聚物出现,经研究证实有古红土存在。样区下部土层较薄,土壤粗骨骼颗粒大小不一,表层缺少团聚体,土壤发育程度较低,孔隙不匀,有机质形态单一,土层曾因植物造林运动和旅游开发遭到破坏。As for learning forest soil micro-morphology in West Mountain area of Beijing,on the basis of soil survey,the chemical properties,organic matter,pore,pedological features and micro-structure of the soil in Jiufeng National Forest Park were studied by the physical and chemical properties and micro-morphology.Results show that：the main skeleton grain are quartz and the main pedological features are Fe-Mn coating in this area.There are much soil organic,more kinds of organic,well-done pore distributions and micro-structure in the middle-upper part of this area.The soil construction is well-developed and stable.The environment has been protected well and there are ancient clay and Fe-Mn coating in C layer of the middle-upper part.In the lower part of this area,soil depth is thin and the pore structure is not uniform,besides,only one kind of soil organic exists and aggregate isn＇t found in soil surface layer.study also finds that the lower part soil has a low degree of development,which has been broken by afforestation and tourism in the twentieth century.

关 键 词：北京西山 土壤微形态 古红土 鹫峰国家森林公园 

分 类 号：S714.2[农业科学—林学]