土壤水分对植物根系固土力学性能的影响综述

doi:10.11924/j.issn.1000-6850.casb14120109

摘要/Abstract

摘要： 为了分析土壤水分对植物根系固土力学性能的影响机制，揭示根系固土力学机理和科学防治土壤流失提供基础理论研究思路，本文分析了土壤含水量对根系分布、根系抗拉特性、根系-土壤相互作用、根系-土壤复合体抗剪特性和根系固土力学模型的影响，探讨了根系固土力学性能对土壤含水量的响应机理研究现状及发展趋势。认为根系形态与根系固土效果紧密相关，目前缺乏土壤水分对根系形态及根系固土力学特性的定量研究；对根系抗拉强度和拔出强度的影响因素等关注较多，但对土壤水分变化是否影响根系强度、根土界面摩擦和根系破坏模式研究非常少；土壤水分在植物固持水土的水文效应中研究较多，但其对根系固土力学性能的影响规律尚需进一步研究；评价根系固土力学性能的模型没有考虑或充分考虑土壤水分变化对固土效果的影响，且模型中各影响因素的相对重要性关系尚不清楚。分析结果深化了对降水影响覆盖植被边坡稳定性机理的理解，为深入研究土壤水分与根系固土力学机制相互作用提供了理论基础。

关键词: 饲草高粱, 饲草高粱, 不育系, 恢复系, 聚类分析

Abstract: In order to analyze the mechanism of soil moisture influencing the mechanical properties of soil reinforcement by plant roots, to reveal the mechanism of soil reinforcement by plant roots and scientifically prevent soil erosion, effects of soil moisture on root distribution, root tensile strength, root-soil interaction, shear properties of root-soil composites and mechanical models of root reinforcement were analyzed. The present status and trend of mechanical properties of soil moisture on soil reinforcement by plant roots were discussed. The results indicated that root distribution was closely related to the effects of soil reinforcement by roots. However, quantitative research on relationships between soil moisture and root distribution and soil reinforcement was still insufficient. The influence of soil moisture on failure patterns of roots in shearing soils and on the mechanical effects of root reinforcement were still unclear, although it was considered in the hydraulic effects of soil reinforcement by plant roots. Besides, the existing mechanical models of root reinforcement were established without considering or sufficiently integrating with soil moisture, and the relative importance of the influencing factors were unclear. The results improved the understanding of the mechanism of rainfall on stability of slopes covered by plants, and provided theory basis for further research on interaction between soil moisture and soil reinforcement by plant roots.

蒋静,张超波,张雪彪,杨启红. 土壤水分对植物根系固土力学性能的影响综述[J]. 中国农学通报, 2015, 31(11): 253-261.

参考文献

[1] 孙鸿烈.我国水土流失问题及防治对策[EB/OL]. http://www.npc. gov.cn/npc/xinwen/2010-10/29/content _1602975. htm, 2010-10-29/ 2014-01-11.
[2] 朱显漠.黄土高原地区植被因素对于水土流失的影响[J].土壤学报,1960,8(2):110-120.
[3] Sotir R B. Integration of soil bioengineering techniques[A]. In: Proceedings of 33rd International Erosion Control Association Conference[C]. IECA, Orlando, FL, 2002:191-200.
[4] Norris J E, Stokes A, Mickovski S B, et al. Slope stability and erosion control: ecotechnological solutions[M]. Springer, New York, 2008.
[5] 徐宪立,马克明,傅伯杰,等.植被与水土流失关系研究进展[J].生态学报,2006,26(9):3137-3143.
[6] Stokes A, Norris J E, van Beek L P H, et al. How vegetation reinforces soil on slopes. In: Slope stability and erosion control: Ecotechnological solutions[M]. J.E. Norris et al. (eds.) Springer Netherlands, 2008:65-118.
[7] 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.
[8] 余芹芹,乔娜,卢海静,等.植物根系对土体加筋效应研究[J].岩石力学与工程学报,2012,31(S1):3216-3223.
[9] 于国强,张霞,张茂省,等.植被对黄土高原破沟系统重力侵蚀调控机理研究[J].自然资源学报,2012,27(6):922-932.
[10] 李勇,徐晓琴,朱显谟.黄土高原植物根系提高土壤抗冲性机制初步研究[J].中国科学B辑,1992,35(3):254-259.
[11] 郭海梅.植被根系对边坡稳定性的影响分析[D].南京:河海大学, 2008:8-9.
[12] Wu T H. Investigation of landslides on Prince of Wales Island, Alaska[R]. Ohio State Univ., Dept. of Civil Eng., Geotech. Eng. Rpt. 1976(5):93.
[13] Wu T H, McKinnell III W P, Swanston D N. Strength of tree roots and landslides on Prince of Wales Island, Alaska[J]. Can Geotech J, 1979(16):19-33.
[14] Pollen N, Simon A. Estimating the mechanical effects of riparian vegetation on stream bank stability using a fiber bundle model[J]. Water Resour Res, 2005(41):1-11.
[15] Schwarz M, Lehmann P, Or D. Quantifying lateral root reinforcement in steep slopes—From a bundle of roots to tree stands[J]. Earth Surf Process Landforms, 2010(35):354-367.
[16] Docker B B, Hubble T C T. Modelling the distribution of enhanced soil shear strength beneath riparian trees of south-eastern Australia[J]. Ecol Eng, 2009(35):921-934.
[17] Schwarz M, Lehmann P, Or D. Quantifying lateral root reinforcement in steep slopes-from a bundle of roots to tree stands[J]. Earth Sarf Proc Land, 2010(35):354-367.
[18] 封金财,王建华.乔木根系固坡作用机理的研究进展[J].铁道建筑, 2004(3):29-31.
[19] 李建兴,何丙辉,谌芸,等.不同护坡草本植物的根系分布特征及其对土壤抗剪强度的影响[J].农业工程学报,2013,29(10):144-152.
[20] 颜正平.植物根系分布生态学理论与体系模式之研究[J].水土保持研究,2005,12(5):1-6.
[21] Stokes A, Mattheck C. Variation of wood strength in tree roots[J]. J Exp Bot, 1996(47):693-699.
[22] 刘秀萍.林木根系固土有限元数值模拟[D].北京:北京林业大学, 2008.
[23] Zhang C B, Chen L H, Liu Y P, et al. Triaxial compression test of soil- root composites to evaluate influence of roots on soil shear strength[J]. Ecol Eng,2010,36:19-26.
[24] 张永亮.沙棘根系生物力学特性研究[D].杨凌:西北农林科技大学, 2011.
[25] 王磊.植被根系固上力学机理试验研究[D].南京:南京林业大学, 2011.
[26] 赵忠,李鹏,王乃江.渭北黄土高原主要造林树种根系分布特征的研究[J].应用生态学报,2000,11(1):37-39.
[27] Zhang C B, Chen L H, Jiang J. Vertical root distribution and root cohesion of typical trees on the Loess Plateau, China[J]. J Arid Land,2014,6(5):601-611.
[28] 李鹏,李占斌,澹台湛.黄土高原退耕草地植被根系动态分布特征[J].应用生态学报,2005,16(5):849-853.
[29] 马元喜.不同土壤中小麦根系生长动态的研究[J].作物学报,1987, 13(1):37-44.
[30] 王礼先.森林水文学研究发展概况[M].北京:北京林业大学,1990.
[31] 余新晓,张建军,朱金兆.黄土地区防护林生态系统土壤水分条件的分析与评价[J].林业科学,1996,32(4):289-296.
[32] 马玉玺,杨文治,韩仕峰,等.黄土高原刺槐生长动态研究[J].水土保持学报,1990,4(2):26-32.
[33] 王晨阳.不同土壤水分条件下小麦根系生态生理效应的研究[J].华北农学报,1992,7(4):1-8.
[34] 刘殿英,石立岩,董庆裕.不同时期施肥水对冬小麦根系活性和植株性状的影响[J].作物学报,1993,19(2):149-155.
[35] 汤章城.植物对水分胁迫的反应和适应性.Ⅱ.植物对干旱的反应和适应性[J].植物生理学通迅,1983(4):1-7.
[36] 颜振德.甘薯品种的耐旱性及其鉴定方法的研究[J].作物学报, 1964,3(2):183-189.
[37] Burylo M, Hudek C, Rey F. Soil reinforcement by the roots of six dominant species on eroded mountainous marly slopes (Southern Alps, France)[J]. Catena, 2011(84):70-78.
[38] Tiwari R C, Bhandary N P, Yatabe R, et al. New numerical scheme in the finite-element method for evaluating the root-reinforcement effect on soil slope stability[J]. Géotechnique, 2013, 63(2): 129-139.
[39] Mickovski S B, Stokes A, van Beek R, et al. Simulation of direct shear tests on rooted and non- rooted soil using finite element analysis[J]. Ecol Eng, 2011, 37: 1523-1532.
[40] Fan C C, Su C F. Effect of soil moisture content on the deformation behaviour of root-reinforced soils subjected to shear[J]. Plant Soil, 2009, 324: 57-69.
[41] Ji J N, Kokutse N, Genet M, et al. Effect of spatial variation of tree root characteristics on slope stability. A case study on Black Locust (Robinia pseudoacacia) and Arborvitae (Platycladus orientalis) stands on the Loess Plateau, China[J]. Catena, 2012, 92:139-154.
[42] 张良德,徐学选,胡伟,等.黄土丘陵区燕沟流域人工刺槐林的细根空间分布特征[J].林业科学,2011,47(11):31-36.
[43] 王凯,宋立宁,吕林有,等.不同林龄沙地樟子松人工林细根垂直分布特征[J].东北林业大学学报,2014,42(3):1-4.
[44] 程洪,谢涛,唐春,等.植物根系力学与固土作用机理研究综述[J].水土保持通报,2006,26(1):97-102.
[45] 周跃,陈晓平,李玉辉,等.云南松侧根对浅层土体的水平牵引效应的初步研究[J].植物生态学报,1999,23(5):458-465.
[46] 熊燕梅,夏汉平,李志安,等.植物根系固坡抗蚀的效应与机理研究进展[J].应用生态学报,2007,18(4):895-904.
[47] 马国宸.土壤水分移动与植生根系对边坡稳定之研究[D].台北:国立台湾大学生物环境系统工程学研究所,2008:20-23.
[48] Genet M, Stokes A, Salin F, et al. The influence of cellulose content on tensile strength in tree roots[J]. Plant Soil, 2005, 278: 1-9.
[49] Zhang C B, Chen L H, Jiang J. Why fine tree roots are stronger than thicker roots: The role of cellulose and lignin in relation to slope stability[J]. Geomorphology,2014(206):196-202.
[50] 吕春娟,陈丽华.华北典型植被根系抗拉力学特性及其与主要化学成分关系[J].农业工程学报,2013,29(23):69-78.
[51] 蒋坤云.植物根系抗拉特性的单根微观结构作用机制[D].北京:北京林业大学,2013.
[52] 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.
[53] 朱海丽,胡夏嵩,毛小青,等.护坡植物根系力学特性与其解剖结构关系[J].农业工程学报,2009,25(5):40-46.
[54] 乔娜,余芹芹,卢海静,等.寒旱环境植物护坡力学效应与根系化学成分响应[J].水土保持研究,2012,19(3):108-113.
[55] Hales T, Cole-Hawthorne C, Lovell L, et al. Assessing the accuracy of simple field based root strength measurements[J]. Plant Soil, 2013(372):553-565.
[56] 张超波.林木根系固土护坡力学基础研究[D].北京:北京林业大学, 2011.
[57] Zhang C B, Chen L H, Jiang J, et al. Effects of gauge length and strain rate on the tensile strength of tree roots[J]. Trees,2012,26(5): 1577-1584.
[58] 陈丽华,及金楠,冀晓东,等.林木根系基本力学性质[M].北京:科学出版社,2012.
[59] Turmanina V. On the strength of tree roots[J]. Bull. Moscow Soc. Naturalists, Biol. Sec,1965(70):36-45.
[60] Wasterlund I. Strength components in the forest floor restricting maximum tolerable machine forces[J]. Journal of Terramechanics, 1989(26):177-182.
[61] Jane FW. The structure of wood[M]. Black, London, 1970:478.
[62] 李会科,王忠林,贺秀贤.地埂花椒林根系分布及力学强度测定[J]. 水土保持研究,2000,7(1):38-41.
[63] 耿威,王林和,刘静,等.鄂尔多斯高原 3种 4龄-5龄灌木根系抗拉特性初步研究[J].内蒙古农业大学学报,2008,29(3):86-89.
[64] Makarova O V, Cofie P, Koolen A L. Axial stress- strain relationships of fine roots of Beech and Larch in loading to failure and in cyclic loading[J]. Soil Till Res, 1998, 45: 175-187.
[65] Cofie P, Koolen A J, Perdok U D. Measurement of stress- strain relationship of beech roots and calculation of the reinforcement effect of tree roots in soil-wheel systems[J]. Soil Till Res,2000,57:1- 12.
[66] Thome C R. Effects of vegetation on riverbank erosion and stability[M]. Thomes JB. Vegetation and Erosion Processes and Environments, John Wiley & Sons Inc., New York,1990:125-144.
[67] Gray D H, Sotir R B. Biotechnical and soil bioengineering slope stabilization: a practical guide for erosion control[M]. John Wiley & Sons Inc., New York,1996.
[68] Ennos A R. The scaling of root anchorage[J]. J Theor Biol,1993 (161):61-75.
[69] Osman N, Abdullah M N, Abdullah C H. Pull- out and tensile strength properties of two selected tropical trees[J]. Sains Malaysiana,2011(40):577-585.
[70] Giadrossich F, Schwarz M, Cohen D, et al. Mechanical interactions between neighbouring roots during pullout rests[J]. Plant Soil,2013, 367:391-406.
[71] Mickovski S B, Bengough A B, Bransby M F, et al. Material stiffness, branching pattern and soil matric potential affect the pullout resistance of model root systems[J]. Eur J Soil Sci,2007,58 (6):1471-1481.
[72] 刘小光,赵红华,冀晓东,等.油松和落叶松根与土界面摩擦特性[J]. 摩擦学学报,2014,32(6):550-556.
[73] 邢会文.4种植物根-土界面摩阻特性研究[D].呼和浩特:内蒙古农业大学,2009.
[74] 张云伟,刘跃明,周跃.云南松侧根摩擦型根土粘合键的破坏机制及模型[J].山地学报,2002,20(5):628-631.
[75] Normaniza O, Faisal H A, Barakbah S S. Engineering properties of Leucaena leucocephala for prevention of slope failure[J]. Ecol Eng, 2008(32):215-221.
[76] 张超波,陈丽华,刘秀萍.黄土高原刺槐根系固土的力学增强效应评价[J].水土保持学报,2009,23(2):57-60.
[77] 言志信,宋云,江平,等.植物摩擦型根-岩土相互作用的初步研究[J].中国科学:技术科学,2010,40(9):1109-1113.
[78] Ma’ ruf M F. Shear strength of Apus bamboo root reinforced soil[J]. Ecol Eng, 2012, 41: 84-86.
[79] 张兴玲,胡夏嵩.青藏高原东北部黄土区草本植物根系加筋土的抗剪特性[J].水土保持通报,2013,33(4):185-188.
[80] 李绍才,孙海龙,杨志荣,等.坡面岩体-基质-根系互作的力学特性[J].岩石力学与工程学报,2005,24(12):613-620.
[81] 朱珊,邵军义.根系黄土抗剪强度的特性[J].青岛建筑工程学院学报,1997,18(1):5-9.
[82] 宋维峰,陈丽华,刘秀萍.林木根系固土作用数值分析[J].北京林业大学学报,2006,28(2):80-84.
[83] 姚喜军.四种植物根系提高土体抗剪强度有效性研究[D].呼和浩特:内蒙古农业大学,2009.
[84] 杨亚川,莫永京,王芝芳,等.土壤-草本植被根系复合体抗水蚀强度与抗剪强度的试验研究[J].中国农业大学学报,1996,1(2):31-38.
[85] 党靖,胡李俐,南帅.含水量及天然密度对土体抗剪强度参数的影响研究[J].中国西部科技(学术),2007(5):14-15.
[86] 邢会文,刘静,王林和,等.柠条、沙柳根与土及土与土界面摩擦特性[J].摩擦学学报,2010,30(1):87-91.
[87] 格日乐,左志严,蒙仲举,等.杨柴根系提高土体抗剪特性的研究[J]. 水土保持学报,2014,28(4):72-77.
[88] 陈红星,李法虎,郝仕玲,等.土壤含水率与土壤碱度对土壤抗剪强度的影响[J].农业工程学报,2007,23(2):21-25.
[89] 倪九派,高明,魏朝富,等.土壤含水率对浅层滑坡体不同层次土壤抗剪强度的影响[J].水土保持学报,2009,23(6):48-50.
[90] 赵旭,张祖立,黄秋波,等.玉米根土复合体剪切性能试验[J].农业机械学报,2013,44(8):126-132.
[91] 程洪,颜传盛,李建庆,等.草本植物根系网的固土机制模式与力学试验研究[J].水土保持研究,2006,13(1):62-65.
[92] 张超波,蒋静,陈丽华.植物根系固土力学机制模型[J].中国农学通报,2012,28(31):1-6.
[93] Waldron L J. The shear resistance of root-permeated homogeneous and stratified soil[J]. Soil Sci Soc Am J,1977,41:843-849.
[94] Mao Z, Jourdan C, Bonis M L, et al. Modelling root demography in heterogeneous mountain forests and applications for slope stability analysis[J]. Plant Soil,2013,363(1-2):357-382.