Comparison of the Soil Anti-erodibility Enhanced by Nine Shrub Roots at the Section from Nehe to Nenjiang of the G111 Highway

XU Wen-yuan; LIU Yu-hua; WANG Xiao-chun; SUN Long; MU Li-qiang; ZHAO Yu-fang

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Comparison of the Soil Anti-erodibility Enhanced by Nine Shrub Roots at the Section from Nehe to Nenjiang of the G111 Highway

更新时间：2024-11-07

- Comparison of the Soil Anti-erodibility Enhanced by Nine Shrub Roots at the Section from Nehe to Nenjiang of the G111 Highway
- Vol. 25, Issue 2, (2011)
- 作者机构：
  
  东北林业大学土木工程学院,哈尔滨,1500402. 东北林业大学林学院,哈尔滨,150040
- 作者简介：
- 基金信息：
- DOI：
  CLC： S152.7S157.1
- Published：2011
- 稿件说明：
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XU Wen-yuan, LIU Yu-hua, WANG Xiao-chun, et al. Comparison of the Soil Anti-erodibility Enhanced by Nine Shrub Roots at the Section from Nehe to Nenjiang of the G111 Highway[J]. 2011, 25(2).
DOI：

XU Wen-yuan, LIU Yu-hua, WANG Xiao-chun, et al. Comparison of the Soil Anti-erodibility Enhanced by Nine Shrub Roots at the Section from Nehe to Nenjiang of the G111 Highway[J]. 2011, 25(2). DOI：

摘要

国道G111讷嫩段是较严重的风沙区

选取9种东北常见绿化灌木

对其根系土壤抗蚀性进行研究。首先以全根挖掘法考察其根系形态分布特征

以静水崩解法确定不同灌木根系土粒抗蚀指数大小变化

最后用主成分分析法对衡量土壤抗蚀性的25项指标进行分析。结果表明:9种灌木土壤抗蚀性的增强效应不同

但都随着土层深度增加

抗蚀指数呈下降趋势

并且9种灌木土壤抗蚀指数(S)都随浸水时间(t)呈三次函数曲线变化(R2≥0.82)。微团聚体、有机质、速效钾、>5 mm和0.5~2 mm土壤大团聚体及<1mm根系生物量、根系长度

在植物对土壤抗蚀性增强效应中起主要作用

它们的公因子方差都超过了0.90。9种灌木根系对土壤抗蚀性增强效应依次为:紫丁香>树锦鸡儿>爬地柏>红瑞木>东北连翘>辽东水蜡>紫穗槐>毛樱桃>红王子锦带

建议对前5种灌木进行推广应用。

Abstract

The segment from Nehe to Nenjiang of the national highway G111 is one of most serious sandstorm areas.Observed the root morphological distributions of nine northeastern common green shrubs by the whole root mining method first

determined the erosion-index of the nine shrub roots by hydrostatic collapse method according to the soil particles

and finally using principal components analysis analyzed the total 25 factors which related to soil anti-erodibility.The results indicated that: Different tree species w...

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