Control Efficiency of Four Types of Ecological Slope Protection in Highway Engineering

ZHOU Fu-chun; WANG Xiao-biao; LIU Xue-lian

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Control Efficiency of Four Types of Ecological Slope Protection in Highway Engineering

- Control Efficiency of Four Types of Ecological Slope Protection in Highway Engineering
- Bulletin of Soiland Water Conservation Vol. 31, Issue 5, Pages: 220-223(2012)
- 作者机构：
  
  1. 重庆交通大学国家内河航道整治工程技术研究中心,重庆,400074
  2. 重庆交通大学水利水运工程教育部重点实验室,重庆,400074
- 作者简介：
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- Published：2012
- 稿件说明：
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ZHOU Fu-chun, WANG Xiao-biao, LIU Xue-lian. Control Efficiency of Four Types of Ecological Slope Protection in Highway Engineering[J]. Bulletin of Soiland Water Conservation, 2012, 31(5): 220-223.
DOI：

ZHOU Fu-chun, WANG Xiao-biao, LIU Xue-lian. Control Efficiency of Four Types of Ecological Slope Protection in Highway Engineering[J]. Bulletin of Soiland Water Conservation, 2012, 31(5): 220-223. DOI：

摘要

生态护坡能有效地防治公路工程水土流失

在生境的重建及生态系统的恢复方面起到了明显作用。选择重庆市巴南区及南岸区4种典型的生态护坡类型--裸坡、菱形骨架植草护坡、乔木护坡和植草护坡进行了采样、监测

研究各种边坡土壤侵蚀强度、相对系数、土壤平均侵蚀模数、植被覆盖度、土壤组成成分等指标的变化规律。结果表明:(1)在4种生态护坡措施中

菱形骨架边坡的护坡效果最好

乔木护坡优于植草护坡

裸坡最差; (2)土壤中组成成分的变化不仅受土壤流失量的影响

而且植被本身也影响到土壤组成成分的增减; (3)植草护坡保持水土效果要略强于菱形骨架生态护坡

但在后期

其覆盖度增长不快

恢复效果差于菱形骨架护坡; (4)对植物生长的必要元素

菱形骨架生态护坡的流失量相对比较均衡。

Abstract

Ecological slope protection in highway engineering can not only prevent soil erosion effectively

b ut also has obvious effects on the reconstruction of biotope and the recovery of eco-system. Four types of typical ecological slope protection in Ba′nan and Nan′an Districts of Chongqing City

i. e.

bare slope

rhombic-structure grassing slope protection

tree slope protection and grassing slope protection

were selected to study the changes in soil erosion rate

relative coefficient

average soil erosion modulus

vegetation coverage

soil ingredient

etc. on each side slope. Results show that:(1) Among the four types of ecological slope pro-tections

the protective effect of the rhombic-structure grassing slope protection was the best; the tree slope protection

better than the grassing slope protection; and the bare slope

the worst. (2) The change of soil ingredient was affected not only by soil loss

but also by vegetation. (3) The soil and water conservation effect of the grassing slope protection was better than that of the rhombic-structure slope protection. In the late period

grass coverage increased slowly and thus the recovery effect of the grassing slope protection was worse than that of the rhombic-structure slope protection. (4) For the necessary elements in vegetation growth

soil loss for the rhombic-structure slope protection was relatively balanced.

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