[1]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(05):236-242.
　ZHOU Linhu,HU Xiasong,LIU Changyi,et al.In-situ Pull-out Test of Four Shrub Plants in Xining Basin of the Loess Plateau[J].Research of Soil and Water Conservation,2019,26(05):236-242.
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西宁盆地黄土区4种灌木原位拉拔试验

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年05期 页码: 236-242 栏目: 出版日期: 2019-09-06
Title:
In-situ Pull-out Test of Four Shrub Plants in Xining Basin of the Loess Plateau
作者:
周林虎1, 胡夏嵩1,2, 刘昌义1, 徐志闻1, 许桐1, 申紫雁1
1. 青海大学 地质工程系, 西宁 810016;
2. 中国科学院 青海盐湖研究所, 西宁 810008
Author(s):
ZHOU Linhu1, HU Xiasong1,2, LIU Changyi1, XU Zhiwen1, XU Tong1, SHEN Ziyan1
1. Department of Geological Engineering, Qinghai University, Xining 810016, China;
2. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China
关键词:
西宁盆地; 黄土区; 灌木植物; 抗拔力; 回归方程; 灰色关联法
Keywords:
Xining Basin; loess region; shrub plants; pull-out resistance; regression equation; grey correlation method
分类号:
TU413
摘要:
通过采用原位拉拔试验方法测定了西宁盆地寒冷半干旱气候条件下，生长期为3 a的柠条锦鸡儿（Caragana korshinskii Kom.）、中宁枸杞（Lycium barbarum L.）、白刺（Nitraria tangutorum Bor.）和霸王（Sarcozygium xanthoxylon Bunge）4种灌木植物的抗拔力，分析了抗拔力与株高、冠幅、地径、根长和侧根数等生长参数之间的关系，并探讨了4种灌木固土护坡效果。结果表明：（1）区内4种灌木抗拔力由大至小依次为柠条锦鸡儿（256.39 N）、中宁枸杞（222.80 N）、白刺（178.52 N）和霸王（134.84 N），柠条锦鸡儿和中宁枸杞抗拔力相对显著于白刺和霸王；（2）4种灌木抗拔力与株高之间呈指数函数关系，与地径之间呈幂函数关系，与冠幅、根长和侧根数之间呈线性函数关系；（3）通过采用灰色关联分析法，得到抗拔力与株高、冠幅、地径、根长和侧根数的关联度分别为0.623，0.669，0.629，0.730，0.719，即影响4种灌木抗拔力大小的主要因素为根长和侧根数。该研究结果为寒冷半干旱黄土区采用种植灌木植物方式，科学防治水土流失、浅层滑坡等地质灾害具有理论研究价值和实际指导意义。
Abstract:
We determined the pull-out resistance of four three-year-old shrub plants (Caragana korshinskii Kom., Lycium barbarum L., Nitraria tangutorum Bor. and Sarcozygium xanthoxylon Bunge) by the in-situ pull-out test in the cold and semi-arid climate of Xining Basin. The relationship between the pull-out resistance and the growth indexes such as plant height, crown diameter, ground diameter, root length and lateral root number were analyzed, and the effects of four shrubs on soil slope protection were discussed. The results show that:(1) the decending order of pull-out resistance of the four shrubs in the studying area is Caragana korshinskii Kom.(256.39 N), Lycium barbarum L.(222.80 N), Nitraria tangutorum Bor.(178.52 N) and Sarcozygium xanthoxylon Bunge(134.84 N), the pull-out resistances of Caragana korshinskii Kom. and Lycium barbarum L. are relatively greater than those of Nitraria tangutorum Bor. and Sarcozygium xanthoxylon Bunge; (2) an exponential function relationship between pull-out resistance and plant height is found, a power function relationship between pull-out resistance and ground diameter is found, a linear function relationship between pull-out resistance and crown diameter, root length and lateral root number is found; (3) the correlations obtained by grey correlation analysis method between pull-out resistance and plant height, crown diameter, ground diameter, root length and lateral root number were 0.623, 0.669, 0.629, 0.730 and 0.719, respectively, therefore, the main factors affecting the pull-out resistance of the four shrubs are root length and lateral root number. The results of this study have certain theoretical research value and practical guiding significance for scientific prevention of soil erosion and shallow landslides by planting shrubs in the cold and semi-arid loess areas.

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备注/Memo

收稿日期:2018-12-14;改回日期:2018-12-28。
基金项目:国家自然科学基金（41572306）；中国科学院“百人计划”资助项目（Y110091025）；青海省自然科学基金资助项目（2014-ZJ-906）
作者简介:周林虎(1995-),男,青海省民和县人,硕士研究生,主要从事地质工程方面的研究工作。E-mail:18997295192@163.com
通讯作者:胡夏嵩(1965-),男,河南省开封市人,博士,教授,主要从事环境岩土工程与地质工程等方面的教学与研究工作。E-mail:huxiasong@tsinghua.org.cn

更新日期/Last Update: 1900-01-01