The effects of drought stress on plant morphology and physiological and biochemical indexes were studied by pot water control method with five greening plants of Juniperus chinensis'Pyramidalis',Photinia × fraseri,Sabina chinensis,Prunus cerasifera'Atropurpurea',and Juniperus chinensis as experimental materials.The drought resistance of five greening plants was comprehensively evaluated by principal component analysis and membership function method.The results showed that the drought-resistant ability of the five greening plants was ranked from strong to weak:Juniperus chinensis'Pyramidalis'＞Juniperus chinensis＞Sabina chinensis＞Photinia × fraseri＞Prunus cerasifera'Atropurpurea'.The research results can provide a basis for the planting and maintenance of greening plants in the central division of expressways.
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