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本文对华北地区主要针叶林下的森林腐殖质类型进行了研究。研究结果表明,在本地区海拔2400米以下的针叶林内,森林土壤地表腐殖质层中,不存在H层。森林腐殖质类型均属细腐腐殖质类型。根据F层的厚度和性状,可将针叶林下的细腐腐殖质类型,进一步区分为:薄F细腐腐殖质类型、厚F细腐腐殖质类型、块F半腐状细腐腐殖质类型。同时,本文对各个类型的物质滞积量进行了研究,并得出L、F、A_1层pH值和C/N值规律性的结果。 本项研究结果对华北地区开展立地调查的研完工作,制定连林、营林措施提供科学依据。
In this paper, the main types of forest humus in North China under coniferous forest were studied. The results show that there is no H layer in the surface soil humus layer in the forest coniferous forest below 2,400 meters above sea level in this region. Forest humus types are fine humus type. According to the thickness and trait of F-layer, the types of fine humus under coniferous forest can be further divided into: thin F fine humus type, thick F fine humus type and block F semi-rot humus type. At the same time, the article studies the various types of material lag and obtains the regularity of the pH value and C / N value of L, F and A_1 layers. The results of this study provide a scientific basis for the completion of site surveys in North China and the establishment of even forests and silviculture measures.