南京市植物的耐旱生长指标调查

针对2013年7~9月南京高温干旱的气候情况,选取南京的常见城市园林绿化植物78种,选择公园、校园、街道为调研样地,按植株在干旱期(7~9月)不同表现性状作为植株耐旱生长指标,进行了植物抗旱性生长指标的调查,发现公园、校园、街道的植物枯萎比率顺次增高。同时,分析出耐旱性植物的特点有:多为针叶树种、耐水湿能力强,乔木、灌木、地被的耐旱性依次减弱等。最后总结出南京市常用的最耐旱植物10种和最不耐旱植物10种,以及耐旱性强、使用量大、美观性强的适于城市园林应用的乔木—灌木—地被植物种类共67种,以期为日后的城市园林植物选择提供借鉴。

Investigation of the Plant Growth Indices of Drought Tolerance in Nanjing

According to the extremely high temperature from July to September 2013, We have selected 78 types of landscaping plants and then investigated the drought tolerance by different traits in drought period (from July to September) as the plant growth indices of drought tolerance,in the park, campus, street, we discovered the wilting rate increasing in the park, campus and street. At the same time, we analyzed the characteristics of drought-resistant plants: mostly is conifer tree species and water wet plants; the drought tolerance of trees, shrubs, cover plants decreased. At last, we summarized the 10 types of most drought tolerant plants which is commonly used in Nanjing and the 10 types of least drought tolerant plants, and chose 67 types trees, shrubs and cover plants which are strong drought tolerant, the use of high degree, beautiful and suitable for city. We expect to provide a reference for future city garden plant.