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当前位置: 首页 > 文章 > 西宁盆地两种灌木植物原位拉拔试验及其护坡效应 水土保持研究 2011,18 (3) 206-209
Position: Home > Articles > Research on in Situ Pull-out Tests of Two Shrubs and Its Effects on Slope Protection in Xi'ning Basin Research of Soil and Water Conservation 2011,18 (3) 206-209

西宁盆地两种灌木植物原位拉拔试验及其护坡效应

作  者：
李臻;余芹芹;杨占风;乔娜;李国荣;朱海丽;张莹;毛小青;胡夏嵩
单  位：
青海大学地质工程系
关键词：
西宁盆地;灌木植物;生长指标;拉拔试验;护坡力学效应
摘  要：
通过对种植在试验区的柠条锦鸡儿和霸王2种灌木进行生长指标统计和野外拉拔试验,评价两种灌木的护坡效应。生长指标统计结果表明,2种灌木的株高、根长、根径、侧根数均随生长期的增加而增大,且柠条锦鸡儿的根长、侧根数明显大于同生长期的霸王,而株高、根径要小于霸王;原位拉拔试验得出,2种灌木的拔出力均随株高、根长、根径、侧根数的增加而增大,且霸王的拔出力要比同生长期的柠条锦鸡儿的拔出力大。综合以上,即通过对试验区2种灌木株高、根长等生长指标以及根系拔出力等综合评价,柠条锦鸡儿护坡效应较霸王略为显著。
译  名：
Research on in Situ Pull-out Tests of Two Shrubs and Its Effects on Slope Protection in Xi'ning Basin
作  者：
LI Zhen,YU Qin-qin,YANG Zhan-feng,QIAO Na,LI Guo-rong,ZHU Hai-li,ZHANG Ying,MAO Xiao-qing,HU Xia-song(Department of Geological Engineering,Qinghai University,Xi'ning 810016,China)
关键词：
Xi'ning basin;shrub;growth index;pull-out test;slope protection effect
摘  要：
Two shrubs planted in the testing areas are studied through measurement of growth indices and pull-out test in site to evaluate the effects of two shrubs on slope protection.The statistical results of growth indices show that height,root length,root diameter and lateral root number of two shrubs increase with the proceeding of the growth period.And root length,root diameter of Caragana korshinskii are significantly greater than that of Zygophyllum xanthoxylon,while height and lateral root number are less.Field pull-out tests show that pull-out resistance of two shrubs also increase with height,root length,root diameter and lateral root number;The pull-out resistances of Zygophyllum xanthoxylon are larger than that of Caragana korshinski with the same growth period.The mechanical effects of Caragana korshinski on slope protection are better than that of Zygophyllum xanthoxylon according to growth indices and pull-out resistance of two shrubs in the testing areas.

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