Instantaneous Anti-tension and Tensile Strength of Single Root of Four Plant Species in Two Growth Periods

YUAN Shu-juan; NIU Guo-quan; LIU Jing; ZHANG Xin; XING Hui-wen; YAO Xi-jun

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Instantaneous Anti-tension and Tensile Strength of Single Root of Four Plant Species in Two Growth Periods

- Instantaneous Anti-tension and Tensile Strength of Single Root of Four Plant Species in Two Growth Periods
- Bulletin of Soiland Water Conservation Vol. 28, Issue 5, Pages: 21-25(2009)
- 作者机构：
  
  1. 内蒙古农业大学,内蒙古,呼和浩特,010018
  2. 水利部牧区水利科学研究所,内蒙古,呼和浩特,010010
- 作者简介：
- 基金信息：
- DOI：
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- Published：2009
- 稿件说明：
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YUAN Shu-juan, NIU Guo-quan, LIU Jing, et al. Instantaneous Anti-tension and Tensile Strength of Single Root of Four Plant Species in Two Growth Periods[J]. Bulletin of Soiland Water Conservation, 2009, 28(5): 21-25.
DOI：

YUAN Shu-juan, NIU Guo-quan, LIU Jing, et al. Instantaneous Anti-tension and Tensile Strength of Single Root of Four Plant Species in Two Growth Periods[J]. Bulletin of Soiland Water Conservation, 2009, 28(5): 21-25. DOI：

摘要

研究3～4年生柠条、沙柳、沙地柏和白沙蒿的单根(根径为0.3～3mm)在两个生长时期内瞬时大风作用下的抗拉力和平均抗拉强度。结果表明

在生长季初期(5月初)和旺盛生长期(8月中旬)

4种植物根系的单根抗拉力与直径均呈幂函数正相关关系; 抗拉力和平均抗拉强度均表现为柠条>沙柳>沙地柏>白沙蒿; 沙柳、沙地柏、白沙蒿在生长季初期的抗拉力和平均抗拉强度大于旺盛生长期

柠条反之。

Abstract

Anti-tension and tensilest rength of single root ( the diameter range of roots is between 0.3 and 3 mm) under momentary gale were determined. Plants studied were Caragana microp hylla Lam

Salix psammophila C. Wang et Ch. Y. Yang

Sabina vulgar is Ant.

and Artemisia sphaerocephala Krasch.

which were 3~ 4 years old. The function of momentary gale was simulated by instantaneous tension. Results show that in the early growth period ( early May) and the vigorous growth period ( mid-August)

anti-tension of four kinds of single root shows a positive exponential relation to diameter. The plants

interms of anti-tension and average tensile streng th

are ranged in the order of Caraganami crop hylla Lam> Salixpsammop hila C. Wang et Ch. Y. Yang> Sabina vulgaris Ant.> Ar t emi sia sp haer ocep hala Krasch. Anti-tension and average tensile strength of single root in the early growth period is greater than that in the vigorous growth period except Caragana microphylay Lam.

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