城市典型绿化植物释氧与降温的生态效应:贵州安顺城区实例研究

城市绿化植物是城市生态系统的重要组成部分,在美化城市、保持其生态平衡及维持其可持续发展等方面作用不可低估。本研究以贵州省安顺市城区为研究实例,在对绿化植物种类和数量进行调查的基础上,对香樟等16种典型植物的释氧和降温的生态效应进行分析。结果表明:贵州安顺城区内绿化植物种类较少,结构单一,物种均匀度低;不同植物在不同月份的释氧能力虽有差异,但都表现出6月和8月上升,7月和9月下降的规律;8月份各种植物的降温效果与释氧规律相一致,乔木以法国梧桐降温0.32℃最明显,灌木以小叶女贞降温0.26℃最明显,攀援植物以爬山虎降温最强,达0.46℃。本研究可以为同类型城市的生态建设、改善人居环境以及生态可持续发展提供基础性的研究参考。

Ecological Effects of Typical Urban Greening Plants Releasing Oxygen and Cooling Temperature:A Case Study of Anshun City in Guizhou

In the urban ecosystems,the greening as a subsystem in making beautify the urban environment,it plays an active role of maintaining urban ecological balance and sustainable development.In the paper,Anshun city in Guizhou for a case is studyed by us.On the basis of surveying the green plants in Anshun city urban,the ccological effect of 16 typical plants what releasing oxygen and cooling temperature were studied.The results showed that the plant species less,structure only,species evenness low;the ability of releasing oxygen is different for different plants in different months,but the similar law is rising in June and August,declining in July and September;in August,the law of cooling temperature is consistent with releasing oxygen,but the most obvious were P.acerifolia (0.32℃),L.quiuoni (0.26℃),P.trcuspidata (0.46℃) in arbors,shrubs and climbing plants.These results can provide some basis informations and valuable suggestions for the same city ccological construction,improving the living environment and ecologically sustainable development.