Anti-erodibility of Synthetic Soils During Turf Stage of Rocky Slope Revegetation

PAN Shu-lin; GU Bin; YANG Xiao-liang

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Anti-erodibility of Synthetic Soils During Turf Stage of Rocky Slope Revegetation

- Anti-erodibility of Synthetic Soils During Turf Stage of Rocky Slope Revegetation
- Bulletin of Soiland Water Conservation Vol. 31, Issue 6, Pages: 1-5(2012)
- 作者机构：
  
  1. 宜宾学院矿业与安全工程学院
  2. 四川大学生命科学学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
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PAN Shu-lin, GU Bin, YANG Xiao-liang. Anti-erodibility of Synthetic Soils During Turf Stage of Rocky Slope Revegetation[J]. Bulletin of Soiland Water Conservation, 2012, 31(6): 1-5.
DOI：

PAN Shu-lin, GU Bin, YANG Xiao-liang. Anti-erodibility of Synthetic Soils During Turf Stage of Rocky Slope Revegetation[J]. Bulletin of Soiland Water Conservation, 2012, 31(6): 1-5. DOI：

摘要

以浙江省丹山市普陀区朱家尖机场周边岩石边坡植被恢复施工现场为研究对象

通过添加鸡粪(CM)和泥炭土(PS)两种有机物

组成两组不同配比成坪期人工土壤各12种。通过分析土壤机械组成、团聚体含量等指标

计算了人工土壤的无机黏粒类、微团聚体类、水稳性团聚体类、有机胶体类4大类11小类的抗蚀性因子。然后利用主成分法分析各因子对土壤抗蚀性的贡献

并据此对人工土壤抗蚀性和添加不同配比有机物的抗蚀效果进行了评价。结果表明:(1)人工土壤抗蚀性指标可压缩为微团聚类、无机胶粒类和水稳性团聚类3大类

其中团聚度、团聚状况、分散率为最佳抗蚀性评价指标;(2)由于PS组不能满足主成分分析

无法定量评价不同配比的抗蚀性效果;(3)通过相关主成分线性函数及综合指标函数分析

CM组处理质量比为:原土/CM=2.41时

人工土壤抗蚀性能最佳。

Abstract

Construction site of rocky slope surrounding Zhujiajian airport of Zhejiang Province was selected as the study site.Synthetic soils were constructed by adding chicken manure(CM) and peat soil(PS) with 12 different ratios.Based on the analyses of soil texture and aggregate composition

11 anti-erodibility parameters

which can be further classified into four groups including inorganic clay

micro-aggregate

water-stable aggregate and organic colloid

were calculated and compared.Principal component analysis was then applied to determine the contribution of each anti-erodibility factor.Furthermore

the anti-erodibility of the synthetic soils with organic amendments was evaluated.The results showed that the anti-erodibility indicators should be re-grouped into three categories: microaggregate

inorganic clay

water-stable aggregate

in which aggregation degree

aggregation status

dispersal rate were the best indicators for assessing anti-erodibility.As the PS group could not meet the minimum requirement of principal component analysis

no quantitative evaluation of anti-erodibility was conducted for the synthetic soils with different mixing ratios.Linear function analysis of the principal components and composite indicators showed that synthetic soils of the CM group have the best anti-erodibility with soil∶CM ratio of 2.41(weight basis).

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