城市生态公园植物多样性保护研究--以重庆市渝北区为例

Plant Diversity Conservation in Urban Ecological Park:A Case of Yubei District,Chongqing

城市生态公园是具备自然景观资源、能够保障城市生态安全及满足市民休闲游憩需求的绿地。为了揭示城市生态公园植物多样性特征,对重庆渝北区12个城市生态公园进行植物群落多样性研究。结果表明:重庆市渝北区调研的城市生态公园共有植物227种;公园植物群落多样性整体较高,且草本层>乔木层>灌木层;各类公园植物物种相似程度较低;城市生境与公园面积对改善植物组成及提高植物多样性有益。基于研究结果,建议在建设城市生态公园过程中应当积极响应国际生物多样性保护需求,充分考虑植物群落的长期稳定发展,生态效益与景观效益耦合协调。研究结果旨在为城市生态公园建设、城市植物多样性保护与研究、可持续城市建设提供参考。

Urban ecological parks are green areas with natural landscape resources that can guarantee urban ecological security and meet the recreational needs of citizens.In order to reveal the plant diversity characteristics of urban ecological parks,plant community diversity studies were conducted in 12 urban ecological parks in Yubei District,Chongqing.The results showed that there were 227 plant species in the urban ecological parks studied in Yubei District,Chongqing,the overall plant community diversity in the parks was high,and the herb layer>tree layer>shrub layer,the similarity of plant species in various types of parks was low.Urban habitat and park area were beneficial to improving plant composition and increasing plant diversity.Based on the results of the study,it is suggested that the construction of urban ecological parks should respond positively to the international demand for biodiversity conservation,take into full consideration the longterm stable development of plant communities,and couple and coordinate ecological and landscape benefits.The results of the study aim to provide references for urban ecological park construction,urban plant diversity conservation and research,and sustainable city construction.