竹阔混交林土壤化学性质的研究

Study on the Soil Chemical Properties of Bamboo and Broad Leaved Mixed Forest

摘要:

摘要：通过测定土壤有机质、全氮、水解氮、速效磷和速效钾含量、土壤pH值等指标，研究竹阔混交林的土壤化学性质。结果表明：A、B、C三种类型（毛竹与落叶阔叶树混交）较好，0～40 cm土层土壤有机质、全氮、水解氮、速效磷、速效钾和pH值分别比毛竹纯林增加29.6％，9.1％，10.4％，31.7％，26.8％和3.9％，土壤养分状况有明显改善，土壤肥力大大提高；毛竹与常绿阔叶树混交及毛竹纯林较差，两者趋于一致。由此可见，适当的竹阔混交有利于土壤地力的维持。

Abstract:

Abstracts:The paper studied soil chemical properties of bamboo and broad leaved mixed forest through determination of soil organic matter,total nitrogen, hydrolysable nitrogen,available phosphorus and available potassium content,soil pH value index.The results showed that A,B,Cthree types (bamboo and deciduous broadleaf mixed) had better soil quality,whose soil organic substance in 0～40 cm depth,total nitrogen,hydrolysable nitrogen,available phosphorus,available potassium and pH value were 29.6%,9.1%,10.4%,31.7%,26.8% and 3.9%,higher than those in pure Phyllostachys pubescens forest.So their nutrient status improved significantly with greatly improved soil fertility.Bamboo and evergreen broadleaf mixed and pure Phyllostachys pubescens forest had worse soil quality and tended to be the same.Therefore, suitable mixture of bamboo and broadleaf trees were good for the maintenance of soil fertility.