|Table of Contents|

Analysis of the Mechanical Factors of Soil Reinforcement by Roots and Evaluation of the Differences Between 5 Kinds of Plants(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年17期
Page:
158-162
Research Field:
Publishing date:

Info

Title:
Analysis of the Mechanical Factors of Soil Reinforcement by Roots and Evaluation of the Differences Between 5 Kinds of Plants
Author(s):
LIU Fu-quan1; LIU Jing1; LIU Peng-fei1; HU Ning1; ZHANG Ge2; ZHAO Ying-ming2
1.College of Ecology and Environmental Science,Inner Mongolia Agricultural University,Huhhot,Inner Mongolia 010019；
2.Desert Forestry Experimental Center,Chinese Academy of Forestry,Bayannur,Inner Mongolia 015200
Keywords:
soil reinforcement by roots; principal component analysis; dominant mechanical factors; analytic hierarchy process; tensile mechanical property
PACS:
S157.2
DOI:
-
Abstract:
Taking 3~4 year-old of Caragana microphylla Lam.,Salix psammophila C.wang et Ch.Y.Yang.,Sabina vulgaris Ant.,Artemisia sphaerocephala Krasch.and Hippophae rhamnides Linn.that were common used in soil and water conservation in the arid and semi-arid regions of Inner Mongolia as materials,the test was to explore the dominant mechanical factors of roots and the differences of soil reinforcement by roots between plants,and ten indicators of the mechanical properties of roots were analyzed by the principal component analysis (PCA) with the software of SAS 9.0.The results showed that the dominant factors of summer drought were in the sequence of the tensile mechanical property,the root-soil surface friction property,and the root-soil composite shear property.On this basis,five plants were evaluated by the method of analytic hierarchy process (AHP).In order to reduce the error caused by subjective factors,the variance contribution rate of PCA of the three mechanical properties were used as evaluation weight of AHP.The index of soil-reinforcement by roots were Caragana microphylla Lam.(0.954)>Sabina vulgaris Ant.(0.084)>Salix psammophila C.wang et Ch.Y.Yang.(0.041)>Artemisia sphaerocephala Krasch.(-0.315)>Hippophae rhamnides Linn.(-0.764).

References:

［1］陈群香.中国水土保持生态环境建设现状与社会经济可持续发展对策［J］.水土保持通报,2000（3）:1-4.

［2］张岳.我国水土流失现状及其防治对策［J］.水土保持通报,1993（1）:7-10.
［3］陈永宗.黄土高原的水土流失及其治理［J］.水土保持通报,1981（1）:20-27.
［4］Fan C C,Chen Y W.The effect of root architecture on the shearing resistance of root-permeated soils［J］.Ecological Engineering,2010,36:813-826.
［5］Burylo M,Hudek C,Rey F.Soil reinforcement by the roots of six dominant species on eroded mountainous marly slopes(Southern Alps,France)［J］.Catena,2010,84:70-78.
［6］苑淑娟,牛国权,刘静,等.瞬时拉力下两个生长期4种植物单根抗拉力与抗拉强度的研究［J］.水土保持通报,2009(5):21-25.
［7］邢会文,刘静.柠条、沙柳根与土及土与土界面摩擦特性［J］.摩擦学学报,2010,30(1):87-91.
［8］张超波,陈丽华,刘秀萍,等.黄土高原刺槐根系固土的力学增强效应评价［J］.水土保持学报,2009,23(2):57-60.
［9］王珠娜,史玉虎,潘磊,等.层次分析法在退耕还林生态效益评价指标体系建立中的应用［J］.湖北林业科技,2007(3):1-4.
［10］吕春娟,陈丽华,周硕,等.油松根系固土的基本力学特性［J］.水土保持学报,2011(5):17-20.
［11］朱海丽,胡夏嵩,毛小青,等.护坡植物根系力学特性与其解剖结构关系［J］.农业工程学报,2009(5):40-46.
［12］吴昊.植被根系护坡力学效应分析途径研究［D］.哈尔滨:哈尔滨工业大学,2009.
［13］王萍花,陈丽华,冀晓东,等.白桦根系力学特性的定量研究［J］.水土保持通报,2011(4):154-158.

Memo

Memo:
-
Last Update: 2014-09-26