Relationship Between Physical Properties and Organic-mineral Complexes of Reclaimed Soil Back-filled with Coal Gangue Under Various Vegetation Restoration Models
Author:
Affiliation:

Clc Number:

Fund Project:

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

    [Objective] Clarifying the relationship between physical properties and organic-mineral complexes of reclaimed soil was supposed to provide a support for ameliorating the reclaimed soil physical condition.[Methods] This study chose the soil under three patterns of typical artificial vegetation restoration for seven years in Datong Reclamation District of Huainan City, which had been back-filled with coal gangue. Soil physical indictors and formations of organic-mineral complexes were quantified using standard procedures, and their relationship was determined by multivariate statistical analysis.[Results] Soil organic-mineral status and the combined humus varied with different vegetation restoration patterns in the survey region. The stably-combined humus dominated, and it accounted for 41%~67% of combined humus. Vegetation restoration lowered oil bulk density and increased total porosity significantly in contrast with that of natural soil. These effects were more obvious in the mixed plantation pattern of Ailanthus altissima and grass. Soil non-capillary porosity had significantly positive correlations with the amount of organic-mineral complexes and the ratio of tightly-combined humus to combined humus; however, a negative correlation was found of it with the ratio of stably-combined humus to combined humus. Soil capillary porosity was negatively and significantly correlated with the amount of organic-mineral complexes and the ratio of tightly-combined humus to combined humus; and was positive and significantly correlated with the ratio of stably-combined humus to combined humus. Positive association existed between contents of three fractions of soil combined humus, and total porosity and negative correlation it was between the combined contents and low bulk density.[Conclusion] The physical condition showed strong correlations with organic-mineral complexes in reclaimed soils.

    Reference
    Related
    Cited by
Get Citation

魏怀建,李玉成,王宁,郑刘根,程桦,徐翀.不同植被恢复模式下煤矸石充填复垦土壤物理性质与有机无机复合体的关系[J].水土保持通报英文版,2015,35(6):207-212

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:September 11,2014
  • Revised:October 02,2014
  • Adopted:
  • Online: April 05,2016
  • Published: