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关帝山典型针叶林土壤理化性状研究 被引量:3

Study on the Soil Physicochemical Properties of Coniferous Forests in Guandi Mountain
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摘要 以关帝山3种典型针叶林的土壤理化性状为研究内容,通过设立标准样地、量测不同坡位枯落物厚度、采集土壤样品并对其进行化验分析.结果表明:油松、华北落叶松和云杉3种针叶林林地枯落物的厚度分别为3.35~6.45、4.52~8.25和5.30~9.58 cm;油松、华北落叶松和云杉3种针叶林林地土壤厚度分别为56.35~62.45、43.52~73.25、37.31~48.29 cm;3种针叶林林地土壤的容重和孔隙度在不同林地间存在差异,即使在同一林分内也存在一定的空间变异性.3种针叶林地土壤的pH值随土层深度增加而逐渐增大,有机质、全氮、速效钾和速效磷等养分含量随土层深度增加呈现减少趋势;不同的林地土壤化学性状存在明显差异. In this paper,physicochemical properties of three types of coniferous forests in Guandi Mountain were investigated through establishing standard plot,detecting the litter thickness in different splots,and assaying soil samples.The results showed that different coniferous forest litter volume and thickness existed significant differences.Three kinds of coniferous forest litter thickness were 3.35~6.45,4.52~8.25 and 5.30~9.58 cm respectively; soil thickness between three kinds of coniferous forests of pine,larch and spruce were 56.35~62.45,43.52~73.25,37.31~48.29 cm respectively; soil bulk density and porosity differed between three coniferous forests.Even in the same stand,there still existed some spatial variability.PH value in three kinds of coniferous forest soil increased with the increasing of soil depth.The content of nutrient elements,organic matter and total nitrogen,available potassium,and available phosphorus showed decreasing trends with the increasing of soil depth,indicating the significant differences in soil chemical properties between different forest soils.
出处 《山西农业大学学报(自然科学版)》 CAS 2014年第2期162-167,共6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 针叶林 枯落物 土壤理化性状 土壤蓄水能力 Coniferous forests Litter Soil physical and chemical properties Capacity of preserving water
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