高温热浪对亚热带园林植物危害的调查分析

Investigation Analysis of Hazards of High Temperature and Heat Wave to Subtropical Garden Plants

摘要:

近年来，全球高温热浪事件发生频次显著增加，影响范围和持续时间逐渐扩大。持续的高温热浪会严重抑制植物的生长，导致植物的枯萎甚至死亡。通过实地调查，研究高温热浪对105种亚热带园林植物生长的影响，并按照植物功能类群和产地来源分析植物的响应程度。结果表明，植物类群和习性影响了植物对高温热浪的响应结果，高温热浪下裸子植物的枯萎率显著高于被子植物，其中35.71%的裸子植物严重受害，而被子植物严重受害的比例仅为6.59%；落叶植物的枯萎率显著高于常绿植物，其中21.21%的落叶植物严重受害，而常绿植物仅5.17%严重受害。该研究为高温热浪下亚热带植物的保护和栽培管理指明了方向，同时提供了可实施的科学建议。

Abstract:

In recent years, the frequency of global heat wave events has increased significantly, and the impact scope and duration have gradually expanded. Continuous high temperature and heat wave will seriously inhibit the growth of plants, resulting in plant wilt and even death. The effects of high temperature and heat wave on the growth of 105 species of subtropical garden plants were studied through field investigation, and the response degree of plants was analyzed according to plant functional groups and origin. The results showed that plant groups and habit affected the response to high temperature and heat wave. The wilt rate of gymnosperms was significantly higher than that of angiosperms under high temperature and heat wave, and 35.71% of gymnosperms suffered serious damage, while only 6.59% of angiosperms suffered serious damage. The blight rate of deciduous plants was significantly higher than that of evergreen plants, which 21.21% of deciduous plants were seriously damaged, and did only 5.17% of evergreen plants. Therefore, it was pointed out the direction for the protection and cultivation management of subtropical plants under high temperature and heat wave, and provided practical scientific recommendations.