郑州市15种常见园林树种固碳释氧能力分析研究  

Crbon Fixation and Oxygen Release of 15 Common Landscape Trees in Zhengzhou

作　　者：郭晖[1] 周慧[1] 张家洋[1] 

机构地区：[1]新乡学院生命科学技术学院,河南新乡453000

出　　处：《西北林学院学报》2017年第4期52-56,共5页Journal of Northwest Forestry University

基　　金：基金项目:河南省基础与前沿技术研究(142300410100)

摘　　要：为了揭示园林绿化树种的大气环境效益,并为城市人工绿化生态工程体系的植物选择和配置提供一定的参考,对郑州市常见的15种乡土绿化树种的固碳释氧能力进行研究。结果表明,整株树种固碳量变化范围21.90~779.17g·d^(-1),释氧量变化范围16.56~583.03g·d^(-1)。其中供试树木中光合速率值乔木为6.16μmol·m^(-2)·s^(-1)、灌木为7.36μmol·m^(-2)·s^(-1),常绿树种为6.15μmol·m^(-2)·s^(-1)、落叶树种为6.64μmol·m^(-2)·s^(-1);整株固碳量乔木、灌木分别为386.45、110.55g·d^(-1),常绿、落叶树种分别为216.58、339.56g·d^(-1);整株释氧量乔木、灌木分别为283.55、89.83g·d^(-1),常绿、落叶树种分别为148.50、247.73g·d^(-1)。单位面积固碳释氧量灌木>乔木、常绿树种>落叶树种,而植物整株固碳释氧量乔木>灌木、落叶树种>常绿树种,固碳释氧量较高的树种为栾树、广玉兰和悬铃木,较低的为紫薇、紫叶李和碧桃。In order to understand the benefits of landscape tree species to atmospheric environment, and to provide references for species selection and arrangement in the municipal ecological engineering system, the capabilities of carbon fixation and oxygen release of 15 common native greening species in Zhengzhou were investigated. The values of carbon fixation and oxygen release of an individual tree among 15 species ranged from 21.90 to 779.17 and 16.59-583.03 g·d^-1,respectively. The values of photosynthetic rate were arbor species：6.16 ,shrub species： 7.36, evergreen species： 6, 15 ,and deciduous species： 6.64μmol·m^-2·s^-1. The values of carbon fixation of arbor,shrub,evergreen,and deciduous species per plant were 386.45, 110.55,216.58,and 339.56 g·d^-1,respectively,while the values of oxygen release of these species were 283.55,89.83,148.50,and 247.73 g·d^-1,respectively. Carbon fixation and oxygen release per unit area of shrubs were higher than those of arbors, and of evergreen species were were higher than those of deciduous species. It was concluded that plant species that demonstrated higher capability of carbon and oxygen release were Koelreuteria paniculata, Magnolia grandi flora and Platanus aceri folia, while Lagerstroemia indica ,Prunus cerasifera and Amygdalus persica showed weaker capability to fix carbon and release oxygen.

关 键 词：郑州市 园林植物 固碳 释氧 

分 类 号：S731.2[农业科学—林学]