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›› 1997, Vol. 33 ›› Issue (zk1): 31-38.

• 论文及研究报告 • 上一篇    下一篇

火烧对不同林分土壤腐殖质和土壤肥力影响的研究

杨玉盛 何宗明 俞新妥 黄振华 肖火盛   

  1. 福建林学院 南平353001;福建林学院 南平353001
  • 收稿日期:1996-07-16 修回日期:1900-01-01 出版日期:1997-04-25 发布日期:1997-04-25

THE EFFECT ON THE CONTROLLED BURNING TO THE SoIL HUMUS AND FERTILITY IN DIFFERENT FOREST STANDS

Yang Yusheng,He Zongming,Yu Xintuo,Huang Zhenhua,Xiao Huosheng   

  1. Fujian College of Forestry Nanping 353001;Farm of Tree Cutting And Planting of Yizhou Sha County 365100
  • Received:1996-07-16 Revised:1900-01-01 Online:1997-04-25 Published:1997-04-25

摘要: 对杉木林、马尾松林和常绿阔叶林火烧前后的表层土壤腐殖质及肥力的研究结果表明:炼山后表层土壤有机质和全N降低,土壤生化活性增强,土壤速效性养分供应量增强;表层土壤腐殖质、HA/FA比值、胡敏酸、E4值下降、E4/E6值变大,表层土壤松结合态和紧结合态腐殖质含量及其比例下降,土壤腐殖质活化度降低,这不利于林地土壤良好通透性及土壤肥力保持。

关键词: 炼山, 土壤腐殖质。HA/FA。E4值, 松紧比(I/Ⅲ), 土壤肥力

Abstract: The surface soil layer humus and fertility in Chinese fir,Pinus massoniana and evergreen broad leaved forests before and after controlled burning were studied.After controlled burning,the soil or-ganic matter and total N of surface soil layer decreased.the activities of soil biochemistry strength-ened,the amount of available nutrient supply enhanced.Soil humus,the ratio of HA/FA,humic acid and E4 value decreased, E4/E6 elevated,loosely and tightly combined humus contents and its ratio deseended,the activation of soil humus decreased.It was unfavov able to maintain ventilation penetration and forest soil fertility.

Key words: Controlled burning, Soil humus, HA/FA value, E4 value, Loose and dense com-bined humus ratio(I/Ⅲ), Soil fertility