【摘要】 以河南省黄泛沙区大广高速扶沟-项城段高速公路边坡为对象,调研群落特征并检测土壤化学性质,通过主成分分析法,在对同一路段5种具有代表性的群落综合评价得分的基础上,对其恢复现状进行比较,以期为高速公路边坡群落配置和养护提供理论依据。结果表明,以鬼针草(Bidens pilosa L.)+构树(Broussonetia papyrifera(Linn.)L’Hér.ex Vent.)+加拿大蓬(Conyza canadensis(L.)Cronq)为优势种的群落综合得分最高,以黑麦草(Lolium perenne L.)+紫花苜蓿(Medicago sativa L.)+野胡萝卜(Daucus carota L.)群落的得分次之,以野胡萝卜(Daucus carota L.)+鬼针草(Bidens pilosa L.)+紫花苜蓿(Medicago sativa L.)为优势种的群落得分排名第3,紫穗槐(Amorpha fruticosa L.)+鬼针草(Bidens pilosa L.)+野胡萝卜(Daucus carota L.)优势种的群落得分排名第4,最后是扶芳藤(Euonymus fortunei(Turcz.)Hand.-Mazz.)群落。更多还原

【Abstract】 In this paper,the research object is the Fugou-Xiangcheng expressway slope in Yellow River Flooding Sand Region. The community characters were investigated and the soil chemical properties were measured. Five typical vegetation communities were chosen in the same road section. Based on the synthesis scores of the five types vegetation communities from principal component analysis,the results were compared. We look forward to providing some advices on the plant arrangement and management for the expressway slopes. The ranking result of the five types of vegetation communities recovery is as follows: the community Bidens pilosa L. + Broussonetia papyrifera( L.) L’ Hér. ex Vent. +Conyza canadensis( L.) Cronq,the community of Lolium perenne L. + Medicago sativa L. + Daucus carota L.,the community of Daucus carota L. + Bidens pilosa L. + Medicago sativa L.,the community of Amorpha fruticosa L. + Bidens pilosa L. and the Euonymus fortunei( Turcz.) Hand.- Mazz.community.更多还原