16种园林植物对水淹胁迫的生理响应比较

Comparative Analysis of Physiological Responses in 16 Landscape Plant Species under Waterlogging Stress

摘要:

为科学筛选适用于山西海绵城市绿地建设的耐涝植物资源，以16 种山西省常见园林植物为对象，开展可控水淹胁迫试验，系统监测了叶片游离脯氨酸（Pro）、丙二醛（MDA）含量和相对电导率的动态变化，运用隶属函数法进行综合评价。结合各植物在试验期间的形态表现（如叶片黄化、萎蔫、脱落等）与隶属函数评价结果，将供试植物耐涝性划分为3 类：耐涝性较强的常绿乔木有白皮松Pinus bungeana、圆柏Juniperus chinensis、油松Pinus tabuliformis、侧柏Platycladus orientalis，落叶乔木有槐Styphnolobium japonicum、新疆杨Populus alba var. pyramidalis、白蜡树Fraxinus chinensis；耐涝性中等的落叶乔木有银杏Ginkgo biloba、栾Koelreuteria paniculata、五角槭Acer pictum subsp. mono、旱柳Salix matsudana，落叶灌木有水栒子Cotoneaster multiflorus、金银忍冬Lonicera maackii；耐涝性弱的落叶乔木有碧桃Prunus persica ‘Duplex’，落叶灌木有紫丁香Syringa oblata、连翘Forsythia suspensa。

Abstract:

To scientifically identify waterlogging-tolerant plant species for sponge city green infrastructure in Shanxi Province, a controlled waterlogging experiment was conducted on 16 common landscape plant species in Shanxi. The dynamic changes in key physiological indices—free proline (Pro) and malondialdehyde (MDA) content, along with relative electrical conductivity in leaves—were systematically monitored, and a comprehensive evaluation was performed using the membership function method. Based on the morphological performance of each plant during the experiment (such as leaf yellowing, wilting, shedding) and the results of the subordinate function evaluation, the waterlogging tolerance of the tested plants was classified into three categories. High tolerance: evergreen trees include Pinus bungeana, Juniperus chinensis , Pinus tabuliformis and Platycladus orientalis; deciduous trees include Styphnolobium japonicum, Populus alba var. pyramidalis, and Fraxinus chinensis. Moderate tolerance: deciduous trees include Ginkgo biloba, Koelreuteria paniculata, Acer pictum subsp. mono, and Salix matsudana; deciduous shrubs include Cotoneaster multiflorus and Lonicera maackii. Low tolerance: deciduous trees include Prunus persica‘Duplex’; deciduous shrubs include Syringa oblata and Forsythia suspensa.