Comprehensive Evaluation of the Ecological Adaptability of Mixed-sowing Vegetation Communities and Slope Protection Effect on Highway Slopes
9 groups of field mixed-sowing experiments for ecological adaptability study were carried out in a highway slope in China.The biological and mechanical indexes were tested The evaluation index system of the ecological adaptability was established considering the yield characteristics,quality characteristics,stress resistance,mechanical properties and cost.The judgment matrixes were established; the single-level weights were calculated,and the consistency checks were carried out for the criterion layer,index layer and scheme layer,respectively.The final weight and overall hierarchial sequencing were given.Based on the comprehensive evaluation result,the suggested slope protection scheme of this highway was given as follows:the main herbaceous plant should be bermuda grass and bahia grass,and appropriate content of tall fescue or perennial ryegrass can be added as an avant-garde plant.A little lotus japonicus can be used as soil improvement plant.Two or three of crotalaria mucronata,pigeon pea,tephrosia candida can be used for nitrogen fixing and soil improvement.
highway slope ecological slope protection mixed-sowing vegetation communities ecological adaptability comprehensive evaluation
ZHAO Ying HE Qinghua L1U Jianhua CHEN Yijun WAN Yong
State Key Laboratory of Geomechanies and Geoteclmical Engineering, Institute of Rock and Soil Mechan Guangzhou Expressway Co., Ltd, Guangzhou 510288, China
国际会议
合肥
英文
167-171
2012-05-24（万方平台首次上网日期，不代表论文的发表时间）