年合肥地区园林植物冻害调查及防护措施探讨

合肥地区园林植物冻害调查及防护措施探讨摘 要：2018 年 1 月 23~25 日，合肥市连续 3d 最低温一 8~9℃许多园林植物遭受不同程度冻害。本文对其受冻害情况及其冻后养护恢复情况进行调查分析。结果表明，共有 19科 34 属 41 种园林植物遭受不同程度的冻害，其中约 83%为引种植物；66%的植物冻害等级为轻度或中度，不需人为干预或适度修剪就能恢复正常生长；27%的植物冻害等级为重度，长势明显趋弱；7%的植物出现受冻死亡的现象。建议在森林城市建设中，植物的引种遵循科学规律，重视驯化，尽量选用乡土植物与外来植物相搭配的配置方式，加强日常管护，降低低温逆境胁迫对园林植物的影响。 关键词：园林植物；冻害；调查；防护Study on the investigation and protection measures of garden plants in hefei area in 2018Abstract:From January 23 to 25, 2018, the lowest temperature of 3d in hefei is 8~9. Many garden plants suffer from different degrees of frost damage. In this paper, the investigation and analysis of the freezing damage and the recovery of the post-frozen maintenance were carried out. The results showed that there were a total of 41 species of garden plants in 19 families with different degrees of frost damage, about 83% of which were introduced plants. 66 percent of plant damage was mild or moderate, and normal growth was restored without human intervention or moderate pruning. 27% of plant freeze damage grade was severe, and the growth was significantly weaker. Seven percent of plants die from freezing. Suggestions in the construction of urban forest, plant introduction, follow the scientific laws, attaches great importance to the domestication, try choosing local plants and alien plants are tie-in way of configuration, strengthen daily management, reduce the effects of low temperature adversity stress on garden plants.Key words: Garden plants； Cold injury. Survey； protective目 录引言............................