黄河源区六种草本植物根系抗拔力特征及其影响因素研究

doi:10.11733/j.issn.1007-0435.2023.01.018

草地学报 ›› 2023, Vol. 31 ›› Issue (1): 157-165.DOI: 10.11733/j.issn.1007-0435.2023.01.018

黄河源区六种草本植物根系抗拔力特征及其影响因素研究

王程¹, 胡夏嵩¹, 刘昌义¹, 李希来², 付江涛³, 卢海静², 赵吉美², 邢光延², 何伟鹏¹, 杨馥铖¹, 李国荣¹

1. 青海大学地质工程系, 青海西宁 810016;
2. 青海大学农牧学院, 青海西宁 810016;
3. 青海大学农林科学院, 青海西宁 810016

收稿日期:2022-07-01 修回日期:2022-10-02 出版日期:2023-01-15 发布日期:2023-02-07
通讯作者: 刘昌义, E-mail:1358128151@qq.com
作者简介:王程(1994-)，男，汉族，硕士研究生，主要从事地质工程与地质灾害防治研究，E-mail:3234252189@qq.com
基金资助:
国家自然科学基金资助项目(42041006)；第二次青藏高原综合科学考察研究项目(2019QZKK0905)；青海省自然科学基金资助项目(2020-ZJ-906；2020-ZJ-904)；青海大学地质资源与地质工程硕士学位点建设项目(41250103)；高等学校学科创新引智计划项目(D18013)资助

Study on the Characteristics and Influence Factors of Root Pull-out Resistance of Six Grasses in the Source Region of the Yellow River

WANG Cheng¹, HU Xia-song¹, LIU Chang-yi¹, LI Xi-lai², FU Jiang-tao³, LU Hai-jing², ZHAO Ji-mei², XING Guang-yan², HE Wei-peng¹, YANG Fu-cheng¹, LI Guo-rong¹

1. Department of Geological Engineering, Qinghai University, Xining, Qinghai Province 810016, China;
2. School of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province 810016, China;
3. Academy of Agriculture and Forestry Sciences, Qinghai University, Xining, Qinghai Province 810016, China

Received:2022-07-01 Revised:2022-10-02 Online:2023-01-15 Published:2023-02-07

摘要/Abstract

摘要： 为探讨黄河源区高寒草地植物根系抗拔力特性，本研究选取青海河南县高寒草地6种优势草本为研究对象，通过原位拉拔、单根拉伸、根-土复合体直接剪切等试验，分析6种植物根系抗拔力特性，探讨植物根径、根数、根长和土体密度、含水率、紧实度、含根量及单根抗拉强度、根-土复合体黏聚力等9种因素对植物根系抗拔力的综合影响。结果表明：6种草本根系抗拔力以矮嵩草(Kobresia humilis K.)最大(46.50 N)，高山嵩草(Kobresia pygmaea C. B. Clarke.)次之(37.50 N)，冷地早熟禾(Poa crymophila Keng.)最小(16.45 N)；根系抗拔力与根径、根数、根长间呈显著正相关(P<0.05)，相关系数(R)为0.881，0.727，0.969，与土体密度、紧实度、含根量、根-土复合体黏聚力间呈正相关，与含水率呈负相关。研究结果对探讨黄河源区高寒草地退化力学机理具有理论指导作用，为有效防治区内草地退化、水土流失等地表浅层灾害发生提供理论依据和实际指导。

关键词: 黄河源区, 高寒草地, 抗拔力, 植物根系, 根-土复合体

Abstract: To investigate the characteristics of plant root pull-out resistance of alpine grassland in the source region of the Yellow River,six dominant grass species were selected from the alpine grassland in the source region of the Yellow River in Henan County,Qinghai Province. Through in-situ pull-out test,single root tensile test and root-soil composite system direct shear test,the root pull-out resistance characteristics of six grasses were analyzed. The comprehensive effects of root diameter,root number,root length,soil density,moisture content,compactness,root content,single root tensile strength and cohesion of root-soil composite system on pull-out resistance were investigated. The results showed that:the root pull-out resistance of Kobresia humilis K. was the highest (46.50 N),followed by Kobresia pygmaea C. B. Clarke. (37.50 N),Poa crymophila Keng. was the smallest (16.45 N). There was a significant positive correlation between root diameter,root number,root length and root pull-out resistance,with correlation coefficients (R) of 0.881,0.727,and 0.969,respectively. There was a positive correlation between soil density,soil compactness,root content,cohesion of root-soil composite system and root pull-out resistance,and a negative correlation between moisture content and root pull-out resistance. The results of this study provide theoretical guidance for exploring the mechanical mechanism of alpine grassland degradation in the source region of the Yellow River,and provide theoretical basis and practical guidance for effectively preventing and controlling of grassland degradation,soil erosion and other shallow surface disasters in the region.

Key words: The source region of the Yellow River, Alpine grassland, Plant roots, Pull-out resistance, Root-soil composite system

中图分类号:

S283

王程, 胡夏嵩, 刘昌义, 李希来, 付江涛, 卢海静, 赵吉美, 邢光延, 何伟鹏, 杨馥铖, 李国荣. 黄河源区六种草本植物根系抗拔力特征及其影响因素研究[J]. 草地学报, 2023, 31(1): 157-165.

WANG Cheng, HU Xia-song, LIU Chang-yi, LI Xi-lai, FU Jiang-tao, LU Hai-jing, ZHAO Ji-mei, XING Guang-yan, HE Wei-peng, YANG Fu-cheng, LI Guo-rong. Study on the Characteristics and Influence Factors of Root Pull-out Resistance of Six Grasses in the Source Region of the Yellow River[J]. Acta Agrestia Sinica, 2023, 31(1): 157-165.

0
/ / 推荐

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://manu40.magtech.com.cn/Jweb_cdxb/CN/10.11733/j.issn.1007-0435.2023.01.018

https://manu40.magtech.com.cn/Jweb_cdxb/CN/Y2023/V31/I1/157

参考文献

[1] LI G R,LI X L,CHEN W T,et al. Effects of degradation severity on the physical,chemical and mechanical properties of topsoil in alpine meadow on the Qinghai-Tibet Plateau,west China[J]. Catena,2020,187(C):104370
[2] 李旭谦. 青海省退化草地治理与恢复的技术措施[J]. 青海科技,2018,25(6):34-39
[3] 刘昌义,胡夏嵩,窦增宁,等. 黄河源区高寒草地植被根-土复合体抗剪强度试验及退化程度阈值确定[J]. 草业学报,2017,26(9):14-26
[4] 柴瑜,李希来,于金峰,等. 有机肥施用量对黄河源不同坡向退化高寒草甸土壤团聚体及有机碳的影响[J]. 草地学报,2022,30(7):1613-1620
[5] 林春英,李希来,孙海松,等. 黄河源高寒湿地有机碳组分对不同退化程度的响应[J]. 草地学报,2021,29(7):1540-1548
[6] BADINGQUIYIN G,SMITH A T,HARRIS R B. Summer habitat use of plateau pikas (Ochotona curzoniae) in response to winter livestock grazing in the alpine steppe Qinghai-Tibetan Plateau[J]. Arctic,Antarctic,and Alpine Research,2018,50(1):1447190
[7] LU W,DONG S K,LI Y Y,et al. Effect of degradation intensity on grassland ecosystem services in the alpine region of Qinghai-Tibetan Plateau,China[J]. PLoS ONE,2017,8(3):58432
[8] HU Y F,HAN Y Q,ZHANG Y Z,et al. Extraction and dynamic spatial-temporal changes of grassland deterioration research hot regions in China[J]. Journal of Resources and Ecology,2017,8(4):352-358
[9] 边多,李春,杨秀海,等. 藏西北高寒牧区草地退化现状与机理分析[J]. 自然资源学报,2008(2)：254-262
[10] 杜际增,王根绪,李元寿. 近45年长江黄河源区高寒草地退化特征及成因分析[J]. 草业学报,2015,24(6):5-15
[11] 张宇鹏,吴笑天,李希来,等. 黄河源流域单元退化高寒草甸空间分布及其对土壤理化性质的响应[J]. 草地学报,2022,30(3):503-512
[12] 李成阳,张文娟,赖炽敏,等. 黄河源区不同退化程度高寒草原群落生产力、物种多样性和土壤特性及其关系研究[J]. 生态学报,2021,41(11):4541-4551
[13] 李华忠. 浅析木里县天然草地退化成因及其治理对策建议[J]. 草学,2021(3):70-72,77
[14] ZERGA B,BIKILA W,TEKETAY D,et al. Rangeland degradation and rehabilitation efforts in the Somali national regional state,Eastern Ethiopia:a review[J]. International Journal of Innovative Research and Development,2018,7(5):84-100
[15] 穆少杰,朱超,周可新,等. 内蒙古草地退化防治对策及碳增汇途径研究[J]. 草地学报,2017,25(2):217-225
[16] WALDRON L J. The shear resistance of root-permeated homogeneous and stratified soil[J]. Soil Science Society of America Journal,1977,41(5):843-849
[17] 江锋,张俊云. 植物根系与边坡土体间的力学特性研究[J]. 地质灾害与环境保护,2008,19(1):57-61
[18] MARIE G,ALEXIA S,FRANCK S,et al. The influence of cellulose content on tensile strength in tree roots[J]. Plant and Soil,2005(278):1-9
[19] 李本锋,朱海丽,谢彬山,等. 黄河源区不同水文期护岸植物根系抗拉拔研究[J]. 人民黄河,2021,43(6):37-40,45
[20] 周林虎,胡夏嵩,刘昌义,等. 西宁盆地黄土区4种灌木原位拉拔试验[J]. 水土保持研究,2019,26(5):236-242
[21] OW L F,HARNAS F R,INDRAWAN I G B,et al. Tree-pulling experiment:an analysis into the mechanical stability of rain trees[J]. Tre1es,2010,24(6):1007-1015
[22] XU L,L G THAM,P K K LEE. Effect of Vetiver grass root on the shear strength of completely decomposed volcanic tuff and pull-out resistance of the root[J]. HKIE Transactions,2011,18(1):36-40
[23] 刘昌义,胡夏嵩,李希来,等. 黄河源区高寒草地根-土复合体抗剪强度与土壤营养元素分布关系[J].山地学报,2020,38(3):349-359
[24] 李蕾蕾. 加快发展草原畜牧业的几点思考-以青海省河南蒙古族自治县为例[J]. 中国畜牧业,2015,22(5):40-42
[25] 刘昌义,窦增宁,胡夏嵩,等. 黄河源区高寒草地植物组合对根-土复合体抗剪强度的影响[J]. 草地学报,2019,27(1):43-52
[26] 胡夏嵩,陈桂琛,周国英,等. 青藏铁路沱沱河段路基边坡植物护坡根系力学强度试验研究[J]. 水文地质工程地质,2012,39(1):107-113
[27] 周霞,李东嵘,蒋静,等. 紫花苜蓿根系拉拔试验研究[J]. 人民长江,2019,50(7):185-188
[28] 王桂尧,胡圣辉,张永杰,等. 小乔木根系根土间作用力的室外拉拔试验研究[J]. 水文地质工程地质,2017,44(6):64-69
[29] NORRIS J N. Root reinforcement by hawthorn and oak roots on a highway cut slope in southern england[J]. Plant and Soil,2005,278(1/2):43-53
[30] ZHAO Y F,YANG G Q,WANG Z,et al. Research on friction characteristics of reinforced-soil interface under various pull-out rate and embedded length[J]. Journal of Physics:Conference Series,2022,2200(1):012016
[31] ZENG R,LIN Y T,WAN Z H,et al. An investigation of pull-out force of semi-buried lotus roots after hydraulic scouring[J]. Agriculture,2021,11(8):706
[32] LI Y P,WANG Y Q,WANG Y J,et al. Effects of Vitex negundo root properties on soil resistance caused by pull-out forces at different positions around the stem[J]. Catena,2017(158):148-160

黄河源区六种草本植物根系抗拔力特征及其影响因素研究

Study on the Characteristics and Influence Factors of Root Pull-out Resistance of Six Grasses in the Source Region of the Yellow River

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	杜晨璐, 乔一诺, 赵理荣, 陈瀚文, 曹孟阳, 刘玉. 退化高寒草甸斑块根—土复合体特征研究[J]. 草地学报, 2023, 31(1): 202-209.
[2]	刘文亭, 王芳草, 杨晓霞, 刘玉祯, 冯斌, 俞旸, 张春平, 曹铨, 董全民. 混合放牧对高寒草地矮生嵩草生殖枝与营养枝性状的影响[J]. 草地学报, 2022, 30(9): 2231-2238.
[3]	张海娟, 芦光新, 范月君, 周华坤, 周学丽, 窦声云, 姚世庭, 颜珲璘, 赵阳安, 马坤, 祁岩慧, 邱鹏滢. AM真菌对高寒草地2种禾本科牧草的接种效果研究[J]. 草地学报, 2022, 30(7): 1684-1691.
[4]	邵建翔, 刘育红, 马辉, 魏卫东. 退化高寒草地浅层土壤理化性质Meta分析[J]. 草地学报, 2022, 30(6): 1370-1378.
[5]	毛芮, 郭碧花, 刘金平, 游明鸿, 张雪梅, 羊勇. 寒区公路不同坡度护坡土壤性状和群落特征及功能群差异[J]. 草地学报, 2022, 30(6): 1550-1557.
[6]	冯斌, 杨晓霞, 刘文亭, 董全民, 张春平, 刘玉祯, 孙彩彩, 李彩弟, 时光, 杨增增, 张小芳, 魏琳娜. 不同放牧方式对高寒草地功能群生态化学计量特征的影响[J]. 草地学报, 2022, 30(5): 1063-1070.
[7]	苏洪烨, 张中华, 佘延娣, 马丽, 毛旭锋, 贾顺斌, 马真, 周华坤, 黄小涛. 不同管理措施对青海湖流域高寒草地土壤养分的影响[J]. 草地学报, 2022, 30(5): 1071-1076.
[8]	邵梓桐, 秦彧. 高原鼠兔干扰对高寒草地碳循环的影响研究进展[J]. 草地学报, 2022, 30(5): 1086-1094.
[9]	孙建财, 杨沙, 武玉坤, 李孟玉, 赵国丁, 肖国涛, 邓得婷, 史惠兰. 高寒混播草地优势草种生态位与种间竞争力分析[J]. 草地学报, 2022, 30(5): 1273-1279.
[10]	郭洋楠, 宫传刚, 杨剑, 朱国庆. 草本植物对边坡稳定性影响研究进展[J]. 草地学报, 2022, 30(4): 841-849.
[11]	周学丽, 马坤, 王英成, 赵阳安, 祁星民, 土旦加, 史德军, 芦光新, 董世魁. 有机肥对环青海湖地区退化草地土壤微生物区系的影响[J]. 草地学报, 2022, 30(12): 3191-3198.
[12]	魏晶晶, 秦瑞敏, 张中华, 李永良, 邓艳芳, 马丽, 苏洪烨, 佘延娣, 常涛, 周宸宇, 杨旭芹, 邵新庆, 孙建, 周华坤. 不同退化程度高寒草地植物群落与土壤性质变化及相关性分析[J]. 草地学报, 2022, 30(11): 3035-3045.
[13]	杨冲, 王文颖, 刘攀, 周华坤, 索南吉, 刘艳方, 关晋宏. 三江源区不同高寒草地植物矿物元素含量特征及分析[J]. 草地学报, 2021, 29(S1): 52-61.
[14]	杨冲, 王文颖, 刘攀, 毛旭峰, 董世魁, 周华坤, 陈哲, 索南吉, 靳磊, 马华清. 黄河源区高寒草地植物营养成分含量特征及营养价值评价[J]. 草地学报, 2021, 29(S1): 72-79.
[15]	秦海蓉, 陈长成, 胡月明, 王立亚, 肖武, 赵之重, 胡永强, 赵理, 马秉云, 霍俊领, 王福成. 青海省高寒草地土壤侵蚀强度及其空间分布特点[J]. 草地学报, 2021, 29(S1): 104-112.