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林业科学 ›› 1999, Vol. 35 ›› Issue (3): 116-119.

• 研究简报 • 上一篇    下一篇

不同栽植代数29年生杉木林土壤腐殖质及结合形态的研究

杨玉盛1,邱仁辉1,俞新妥1,何宗明1,黄宝龙2   

  1. 1. 福建林学院 南平 353001
    2. 南京林业大学 南京 210037
  • 收稿日期:1997-08-05 出版日期:1999-05-25 发布日期:1999-05-25
  • 基金资助:
    福建省自然科学基金资助项目(F991)

STUDY ON SOIL HUMUS AND FERTILITY CHARACTERISTIC IN THE 29 YEAR-OLD PLANTATIONS OF CHINESE FIR ON DIFFERENT ROTATIONS

Yusheng Yang1,Renhui Qiu1,Xintuo Yu1,Zongming He1,Baolong Huang2   

  1. 1. Fujian Forestry College Nanping 353001
    2. Nanjing Forestry University Nanjing 210037
  • Received:1997-08-05 Online:1999-05-25 Published:1999-05-25

关键词: 杉木连栽, 土壤腐殖质, HA/FA值, 松紧比(Ⅰ/ Ⅲ), E4值, 杂木林

Abstract:

The humic composition(HA and FA), light density of humic acid, combined forms of the soils in the stands of broad-leaved forest and Chinese fir stand of the first, the second, the third planting were studied comparatively.The results indicated that, with the substitution of Chinese fir plantation for broad-leaved forest and the increasing continuous planting of Chinese fir, the soil organic matter and humus decreased, the ratio of HA to FA and E4 value went down, E4/E6 increased, loosely and tightly combined humus contents and its ratio descended.The soil humus quality declined obviously, which is one of the main reasons for soil degradation at the sites with continuous planting of Chinese fir.

Key words: Continuous planting of Chinese fir, Soil humus, The value of HA/FA, Ratio of loosely to tightly combined humus, E4 value, Broad-leaved forest