马尾松低产林套种木荷的林地与根际土壤养分特性的研究

Study on the Nutrition Characteristics of Rhizosphere Soil and Forest Soil in Mixed Forestry of Pinuns Massoniana Low Yield Forestry inserted Schima Superba

马尾松低产林套种木荷的混交林林地与根际土壤养分特性研究表明,木荷根际对土壤养分的活化能力大于马尾松,这利于混交林中马尾松的生长,套种后所形成的混交林根际微区对土壤养分活化程度的提高改善了两树种的养分利用状况,这可能是低产林改造后林地土壤养分高于纯林地且林分生产力提高的主要原因之—。

The rhizospere soil and forest soil in Pinuns Massoniana with Schima Supeiba Mixed forest was determined. The result indicates that ihizospere of Schima Supeiba activation ability to soil nutrition is stronger than Pinuns Massoniana' s, This make for growth of Pinuns Massoniana of mixed forestry. The advance of activation ability to soil nutridon of the ihizospere tiny - area of the mixed forestry improve forestry nutrition utilized. This is one possible primary reason of soil nutridon and productivity in mixed forestry higher than pure forestry.