应对气候变化的上海抗涝性园林树种选择

Landscape Tree Selection for Waterlogging Resistance in Response to Climate Change in Shanghai

通过淹水模拟实验,对上海25种常见园林树种的受害程度以及叶绿素、电导率、比叶质量、净光合速率、丙二醛含量、脯氨酸含量等7项指标进行测定,确定待测树种抗涝性的优化链。结果表明:可从光合作用水平上进行抗涝性初步预判,优先考虑叶绿素、比叶质量和净光合速率指标;依据抗涝性大小可将25种树种分为强抗涝型、较抗涝型、一般抗涝型和不抗涝型4种类型。

Twenty-five popular landscape trees in Shanghai were selected and seven indicators of victimization,chlorophyll,electrical conductivity,specific leaf mass,net photosynthetic rate,malondialdehyde and proline content were measured in the flood simulation experiments.Then,the resistance spectrums of the 25 landscape trees were scheduled.Finally,a method for predicting the resistance of landscape trees via the level of photosynthesis was put forward,giving priority to chlorophyll,specific leaf mass and net photosynthetic rate indicators.According to the level of waterlogging resistance,25 tree species were divided into four types:strong waterlogging resistance,relatively waterlogging resistance,general waterlogging resistance and weak-waterlogging resistance.