水土保持通报2012，Vol.32Issue(1)：42-44,3.
布根方式及根系径级对根土复合体抗剪性能的影响
Effects of Root Layout and Diameter on Shear Performance in Root-Soil Composite
摘要
Abstract
By taking the composite of the roots of Sabina vulgaris and soil around the roots as a research object,the effects of different root diameter classes and root layouts on shear performance of the root-soil composite were investigated through laboratory shear tests.Results showed that under different normal stresses,shear strength for the root—soil composite with roots was significantly greater than that for the disturbed soil without root.As for the root—soil composite,shear strength contributed by vertical roots was greater than that by horizontal roots.Under the condition of the same number of roots contained,shear strength for the composite was not proportional to the size of root diameter,but presented an increasing—fallback—rebounding trend with the increased root diameter.The study may provide some technical parameters and a theoretical support for the future plantation of Sabina vulgaris as a soil and water conservation measure.关键词
根土复合体/抗剪强度/根系径级/布根方式/沙地柏Key words
soil-root composite/shear strength/root diameter/root layout/Sabina vulgaris分类
农业科技引用本文复制引用
胡敏,李为萍,史海滨,梁建财..布根方式及根系径级对根土复合体抗剪性能的影响[J].水土保持通报,2012,32(1):42-44,3.基金项目
公益性行业（农业）科研专项经费项目“内蒙河套灌区上游盐碱地农业高效利用技术模式研究示范” （）
“十二五”国家科技支撑计划重点项目“干旱半干旱节水技术集成与示范”,“内蒙古河套灌区粮油作物节水技术集成与示范” （）
国家农业转化基金项目“盐渍化土壤高效利用与节水灌溉技术转化与应用研究” （）
