Changes of Soil Fertility and Enzyme Activity on Different Standing Conditions Under Two Slope Ecological Restoration Patterns
Author:
Affiliation:

Clc Number:

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    [Objective] The long-term effects of ecological rehabilitation patterns on soil enzyme activity on different standing conditions was studied to provide theory for soil cultivation and remediation. [Methods] A secondary forest and an artificial forest in disturbed area of Xiangjiaba hydropower station were selected as studying sites to measure soil enzyme activities in different slope position and slope exposure and to analyze the relationships between enzymatic activity and other fertility factors. [Results] Except of soil pH value, nutrition level in the lower slope was relatively high in comparison with that at upper and middle slope positions, it was 1.1 times or higher of the levels of the latter two positions. The changes of enzymatic activity was coincided with the indices of soil fertility along different slope positions. Excepting for the slight change of peroxide enzyme activity, other enzymes were all obvious. Among which, phosphatase activity at lower slop position increased 91.67%~116.67% in contrast with the one at upper position urease activity increased 5.3%~5.3%, and invertase activity increased 1.38~1.56 times. In terms of the enzymatic changes of slope exposure, except of peroxide enzyme, other enzymatic activates in shady slope behaved better than the ones in sunny slope. Correlation analysis showed that the correlations between alkaline phosphatase, urease and invertase were significant with each other. The correlations of catalase were not significant with the above three enzymes. [Conclusion] For soil fertility factors, an overall increasing trend from up slope to down slope, and a comparative high in northern slope exposure were both tested. Implying that standing condition can affect the process of soil internal environment. Therefore, for the remediation of upper slope and sunny slope, appropriate fertilization might make the cultivation of soil fertility and the ecological habitation better.

    Reference
    Related
    Cited by
Get Citation

薛海龙,许文年,刘大翔.两种边坡生态修复模式土壤肥力与酶活性的变化[J].水土保持通报英文版,2016,36(4):182-187,192

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:October 26,2015
  • Revised:January 28,2016
  • Adopted:
  • Online: September 21,2016
  • Published: