关中地区74种立体绿化适宜植物固碳释氧能力研究

Carbon Sequestration and Oxygen Release of 74 Plants Suitable for Three-dimensional Greening in the Guanzhong Region

在“双碳”目标的推动下,如何在有限的城市建设空间和绿地条件下,遵循绿色低碳途径实现碳中和成为亟待解决的实际问题。聚焦立体绿化这一尺度上的植物固碳释氧能力,选取5类74种关中地区适宜立体绿化的植物,以绿量作为计算指标,估算其固碳释氧量,为科学衡量基于建筑全生命周期评价的立体绿化碳汇提供数据参考。研究发现5类树种固碳释氧能力大小顺序为地被植物>乔木>藤木>常绿灌木>落叶灌木,5类树种里固碳释氧效果最好的分别为桑树、砂地柏、醉鱼草、金银花和常夏石竹。将74种植物的固碳释氧量进行聚类分析,筛选出高固碳释氧型植物共9种。

Driven by the carbon peak and carbon neutrality targets,how to follow the green and low-carbon approach to achieve carbon neutrality under the conditions of limited urban construction space and green space is a practical problem to be solved urgently.This study focuses on the carbon sequestration and oxygen release of plants at the scale of three-dimensional greening.Five categories and 74 species of plants suitable for three-dimensional greening in the Guanzhong region are selected,and their carbon sequestration and oxygen release capacity are estimated using green content as the calculation indicator,providing data reference for scientifically measuring the carbon sink of three-dimensional greening based on the full life cycle assessment of buildings.The order of carbon sequestration and oxygen release of five types of tree species is:ground cover plants>Arbour>Vines>Evergreen shrubs>Deciduous shrubs.Among the five types of tree species,the ones with the highest carbon sequestration and oxygen release are Mulberry,Sabina Vulgaris,Buddleja,Honeysuckle,and Dianthus Plumarius.Cluster analysis is conducted on the carbon sequestration and oxygen release of 74 plants,and a total of nine high carbon sequestration and oxygen release plants are selected.