樟子松林地土壤容重、有机质及速效养分研究

Different Age Pinus sylvestris var.mongolica Litv.Density,Soil Organic Matter and Available Nutrient Research

采用野外调查和室内分析相结合的方法,对不同林龄的樟子松林土壤理化性质进行测定和分析。由幼龄林到近熟林,土壤容重随着土层深度的增加呈上升趋势;在不同土层中,幼龄林土壤速效氮、速效磷、速效钾含量最低,中龄林含量最高。

Adopt the method of combining field investigation and laboratory analysis,the soil physical and chemical properties of different forest age were determined and analyzed.The sapling forest to nearly ripe forest,soil bulk density with increasing soil depth of thickening;In differe nt soil layers,the young forest soil available nitrogen,available phosphorus,available potassium content was the lowest,the highest content of middle age forest.The research results not only can rest till the physical and chemical properties of research with theoretical reference value,and for mongolica plantation management provides a data basis.