泥石流频发区典型乔灌植物根系的固土效应

陈文乐; 杜鹃; 方迎潮; 王道杰; 何松膛; 兰惠娟; 赵鹏

doi:10.13961/j.cnki.stbctb.2019.05.005

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泥石流频发区典型乔灌植物根系的固土效应

试验研究

- 泥石流频发区典型乔灌植物根系的固土效应
- Soil Reinforcement Effect of Root Systems of Typical Plants in Areas with Frequent Debris Flow
- 水土保持通报 2019年39卷第5期页码：32-39
- 作者机构：
  
  1. 中国科学院水利部成都山地灾害与环境研究所山地灾害与地表过程重点实验室,四川,成都,610041
  2. 中国科学院大学,北京,100049
  3. 阿坝藏族羌族自治州水务局, 四川阿坝藏族羌族自治州,624000
  4. 中石油西南管道公司,四川,成都,610041
- 作者简介：
- 基金信息：
  
  中国科学院战略性先导科技专项（A类）“美丽中国”（XDA23090403）;国家自然科学基金项目“大规模灾害风险评估及综合调控原理和模式”（41790434）;四川省国土资源厅“8.8”九寨沟地震灾区生态化地质灾害防治重大科技支撑研究课题“生态化泥石流灾害防治技术研究”（KJ-2018-24）
- DOI：10.13961/j.cnki.stbctb.2019.05.005
  中图分类号： X43;S157.2
- 纸质出版：2019
- 稿件说明：
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陈文乐, 杜鹃, 方迎潮, 等. 泥石流频发区典型乔灌植物根系的固土效应[J]. 水土保持通报, 2019,39(5):32-39.

Chen Wenle, Du Juan, Fang Yingchao, et al. Soil Reinforcement Effect of Root Systems of Typical Plants in Areas with Frequent Debris Flow[J]. Bulletin of Soiland Water Conservation, 2019, 39(5): 32-39.
陈文乐, 杜鹃, 方迎潮, 等. 泥石流频发区典型乔灌植物根系的固土效应[J]. 水土保持通报, 2019,39(5):32-39. DOI： 10.13961/j.cnki.stbctb.2019.05.005.

Chen Wenle, Du Juan, Fang Yingchao, et al. Soil Reinforcement Effect of Root Systems of Typical Plants in Areas with Frequent Debris Flow[J]. Bulletin of Soiland Water Conservation, 2019, 39(5): 32-39. DOI： 10.13961/j.cnki.stbctb.2019.05.005.

摘要

[目的] 研究泥石流频发区云南省昆明市东川区蒋家沟两种典型生态修复物种新银合欢（Leucaena leucocephala）和马桑（Coriaria sinnica）的根系固土效应，为当地生物工程的应用及泥石流治理效益的评价提供理论依据和数据支撑。[方法] 通过根系挖掘法查明根系分布特征，开展根系拉伸试验分析单根抗拉特征，运用修正后的Wu-Waldron模型（RWM）计算两种植物根系对土壤抗剪强度的增加值。[结果] ①新银合欢和马桑的根面积比RAR均随着土壤深度的增加而减小。②新银合欢根系构型为垂直型，马桑根系构型为横走型。③新银合欢根系的抗拉强度与根径之间无明显规律性，马桑根系的抗拉强度与根径之间呈递减的对数函数关系。④新银合欢和马桑根系对土体抗剪强度增加值均随着土壤深度的增加而减少，新银合欢根系固土深度约为1.4 m，马桑根系固土深度约为0.6 m。[结论] 新银合欢和马桑根系均能显著发挥固土作用。由于根系构型、固土深度、固土方式等原因，二者的固土作用不同，可将二者结合种植，不仅有利于边坡的稳定，也可提高土体的抗冲性。

Abstract

[Objective] The soil reinforcement effect of root systems of Leucaena leucocephala and Coriaria sinnica was studied in Jiangjia gully

Dongchuan District

Kunming City

Yunnan Province in order to provide a theoretical basis and data support for the application of local biological and engineering methods to utilize the control benefit of debris flow.[Methods] The distribution characteristics of root systems were identified using the root digging method

the root tensile characteristics were analyzed with the root tensile test

and the added value of the root systems of the two plant species to the soil shear strength was calculated using the Wu-Waldron model (RWM).[Results] ① The root area ratio of both L. leucocephala and C. sinnica decreased with an increase in soil depth. ② The root configurations of L. leucocephala and C. sinnica were vertical type and transverse type

respectively. ③ The relationship between the tensile strength and root diameter of C. sinnica roots was a decreasing logarithmic function

whereas there was no obvious regularity between tensile strength and root diameter for L. leucocephala roots. ④ The added value of the shearing strength of both L. leucocephala and C. sinnica roots decreased with an increase in soil depth. The depth of soil reinforcement of L. leucocephala and C. sinnica roots was approximately 1.4 m and 0.6 m

respectively.[Conclusion] Both root systems of L. leucocephala and C. sinnica played a significant role in soil fixation. Because the root architecture

soil reinforcement depth

and soil reinforcement technique of these two plants were different

utilizing these two species together can improve slope stability and soil anti-scourability.

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references

王道杰,陈吕容,周麟,等.山地灾害治理中生物工程存在的问题[J].山地学报,2004,22(4):461-466.

Wang Siyuan, Meng Xingmin, Chen Guan, et al. Effects of vegetation on debris flow mitigation:A case study from Gansu province,China[J]. Geomorphology,2017,282:64-73.

周云艳,陈建平,王晓梅.植物根系固土护坡机理的研究进展及展望[J].生态环境学报,2012,21(6):1171-1177.

陆桂红,杨顺,王钧,等.植物根系固土力学机理的研究进展[J].南京林业大学学报:自然科学版,2014,38(2):151-156.

Mao Zhun, Yang Ming, Bourrier F, et al.Evaluation of root reinforcement models using numerical modelling approaches[J].Plant and Soil, 2014,381(1/2):249-270.

李可,朱海丽,宋路,等.青藏高原两种典型植物根系抗拉特性与其微观结构的关系[J].水土保持研究,2018,25(2):240-249.

胡夏嵩,李国荣,朱海丽,等.寒旱环境灌木植物根-土相互作用及其护坡力学效应[J].岩石力学与工程学报,2009,28(3):613-620.

Zhang Chaobo, Chen Lihua, Liu Yaping,et al. Triaxial compression test of soil-root composites to evaluate influence of roots on soil shear strength[J]. Ecological Engineering, 2010,36(1):19-26.

矫震,王道杰,谢洪,等.云南省东川银合欢林区重塑土三轴抗剪强度实验研究[J].水土保持通报,2012,32(6):93-97.

田佳,卞莹莹,于江珊,等.贺兰山3种乔木单根及根土复合体力学特性[J].水土保持学报,2018,32(6):123-129.

崔鹏,王道杰,韦方强.干热河谷生态修复模式及其效应:以中国科学院东川泥石流观测研究站为例[J].中国水土保持科学,2005,3(3):60-64.

王道杰,崔鹏,朱波,等.金沙江干热河谷植被恢复技术及生态效应:以云南小江流域为例[J].水土保持学报,2004,18(5):95-98.

沈有信,张彦东,刘文耀.泥石流多发干旱河谷区植被恢复研究[J].山地学报,2002,20(2):188-193.

郭灵辉,王道杰,陈东,等.蒋家沟泥石流区新银合欢细根固土效应[J].水土保持通报,2011,31(5):85-89.

Waldron L J. The Shear Resistance of Root-Permeated Homogeneous and Stratified Soil[J]. Journal of the Soil Science Society of America,1977,41(5):843-849.

洪苗苗,汪霞,赵云飞,等.浅层滑坡多发区典型植被恢复树种根系对土壤抗剪强度影响[J].山地学报,2018,36(1):107-115.

李宁,陈丽华,杨苑君.油松、华北落叶松根系抗拉特性的影响因素[J].北京林业大学学报,2015,37(12):77-84.

周萍,文安邦,严冬春,等.三峡库区紫色土坡耕地草本地埂植物根系分布及抗拉力学特征[J].水土保持通报,2017,37(3):1-6.

李晓凤,陈丽华,王萍花.华北落叶松根系抗拉力学特性[J].中国水土保持科学,2012,10(1):82-87.

田佳,刘耀辉.华北地区几种常用边坡绿化植物的根系力学特性研究[J].中国水土保持,2007(10):34-36.

曹云生,陈丽华,盖小刚,等.油松根系的固土力学机制[J].水土保持通报,2014,34(5):6-10,14.

Zhang Chaobo, Zhou Xia, Jiang Jing, et al. Root moisture content influence on root tensile tests of herbaceous plants[J]. Catena, 2019,172:140-147.

Ni Junjun, Leung A K, Ng C W W. Influence of plant spacing on root tensile strength of Schefflera arboricola and soil shear strength[J]. Landscape and Ecological Engineering,2019,15(2):223-230.

Krairoj M, Apiniti J. Influence of root suction on tensile strength of Chrysopogon zizanioides roots and its implication on bioslope stabilization[J]. Journal of Mountain Science, 2019,16(2):275-284.

颜正平.植物根系分布生态学理论与体系模式之研究[J].水土保持学报,2005,12(5):1-6.

蒋定生,范兴科.黄土高原水土流失严重地区土壤抗冲性的水平和垂直变化规律研究[J].水土保持学报,1995,9(2):1-8.

陈爱民,严思维,林勇明,等.泥石流频发区不同林龄新银合欢土壤抗蚀性评价[J].北京林业大学学报,2016,38(9):62-70.

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