碳中和背景下的城市绿地植物规划设计

Plant Planning and Design of Green Space in the Context of Carbon Neutrality

植物通过光合作用将二氧化碳固定为有机物质,并在生长过程中储存碳。不同生长阶段和环境条件下,乔木、灌木和草本植物的碳吸收和储存能力有所不同。在气候变化背景下,城市绿地作为城市建成区范围内唯一的近自然生态空间,具有固碳增汇能力;同时,可以通过合理的规划设计来缓解城市热岛效应,促进绿色低碳的出行方式,进而发挥其间接减排效益。因此,城市绿地成为实现碳中和目标的重要载体,合理选择和配置植物种类,是提高绿地碳汇能力的关键。

Plant can fix carbon dioxide into organic substances through photosynthesis,hence storing carbon during its growing process.During different growing stages or under different environmental conditions,arbor,shrub and herbaceous plants will perform different carbon absorption and storage abilities.Under the background of climate change,as the only near-natural ecological space in cities,urban green space has the ability to sequester carbon and increase sinks;Meanwhile,reasonable planning and design can alleviate the urban heat island effect and promote green and low-carbon travel modes,thereby exerting its function of indirect emission reduction.Therefore,urban green space has become an important carrier for achieving the goal of carbon neutrality.Reasonable selection and configuration of plant species is the key to improve carbon sink capacity.