城市地表硬化对植物生理生态的影响研究进展

Effects of ground surface hardening on plant eco-physiological processes in urban landscapes

城市地表硬化是城市发展和扩张的主要表征之一,也是影响城市生态环境及植物生理生态的重要原因。在分析城市地表硬化引起植物生态因子变化的基础上,重点综述了地表硬化对植物气体交换、水分平衡、养分循环等生理生态过程的影响,归纳了不同地表硬化性质、气候季节变化、植物类型以及群落结构等因素对地表硬化景观植物生理生态影响的差异。探讨了目前该领域研究中存在的问题,并提出今后研究建议,以期为优化城市生态用地结构,提高城市植物的生态系统服务,改善城市和人居环境提供一定的科学依据。

Ground surface hardening is the main results of urban development and expansion. It is also an important factor affecting the urban environment and plant eco-physiological processes.With the analysis of the changes on plant ecological factors caused by ground surface hardening,this study focused on an overview of the effects of ground surface hardening on gas exchange,water balance,nutrient cycling and other eco-physiological processes of plants in urban landscapes. The variation of impacts of different hardness of ground surface hardening,changes of seasons,plants,community structure,and human factors on plant eco-physiological processes in urban landscapes was analyzed and summarized. Thus issues in previous studies were discussed,and suggestions for future research were made. This study might provide a scientific method to optimize the ecological structure of urban landscapes,enhance the plant ecosystem services and improve the living conditions in cities.