基于GGE双标图的不同绿地植物固碳降温效益比较  

Comparison of carbon sequestration and cooling benefits of plants in different landscaped green sites based on GGE biplot

作　　者：司明倩 穆艳 SI Mingqian;MU Yan(School of Landscape Architecture and Art,Northwest A&F University,Yangling 712100,Shaanxi,China)

机构地区：[1]西北农林科技大学风景园林艺术学院,陕西杨凌712100

出　　处：《应用生态学报》2025年第3期682-692,共11页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金项目(41877014)资助。

摘　　要：为了了解常见园林植物在不同环境中的生态适应能力,以街道绿地和校园绿地为研究区,筛选17种常见园林植物作为对象,对比分析两种绿地类型同胸径(草本为株高)植物的微环境特征、固碳释氧量和降温增湿量变化,利用基因型主效应及其与环境互作双标图和皮尔逊分析法解析两种绿地上植物与环境的互作关系。结果表明:国槐、银杏、碧桃、七叶树、金叶女贞、紫叶小檗、小蜡和龙柏的固碳降温效益在两种绿地间存在显著差异。单位土地面积上,校园绿地固碳降温最强的植物是龙柏,固碳量和降温值分别为33.79 g·m^(-2)·d^(-1)和2.30℃,街道绿地上最强的植物是红叶石楠,固碳量和降温值分别为31.47 g·m^(-2)·d^(-1)和0.84℃;17种植物在校园绿地的平均固碳降温能力大于街道绿地,而乔木在街道绿地的降温增湿效果更好。夏季校园绿地的小气候条件比街道绿地更稳定,更接近植物生长的理想自然环境。对于中小城镇,在进行景观植物配置时,应选用固碳降温效益较好的乔灌草植物,包括国槐、栾树、女贞、紫叶李、七叶树、白皮松、龙柏、小蜡、金叶女贞、红叶石楠和麦冬等,来提升绿地的生态功能。To understand the ecological adaptability of common garden plants,we analyzed the growth characteristics of 17 common garden plant species in the street green site and the campus green site.We measured microenvironmental characteristics,carbon sequestration,oxygen release,cooling and humidification of plants with the same diameter at breast height(herb was the height of the plant)in the two green sites.We used genotype main effect plus genotype-by-environment interaction biplot and Pearson correlation analysis to analyze the interaction between species identity and site type.The results showed that Sophora japonica,Ginkgo biloba,Prunus persica,Aesculus chinensis,Ligustrum×vicaryi,Berberis thunbergii,Ligustrum sinense and Sabina chinensis had significant differences in carbon sequestration and cooling benefits between the two site types.Under the same land area,S.chinensis showed the strongest carbon sequestration and cooling in the campus with the values of 33.79 g·m^(-2)·d^(-1)and 2.30℃,respectively.Photinia×fraseri was the strongest species in the street,with values of 31.47 g·m^(-2)·d^(-1)and 0.84℃,respectively.The average carbon sequestration and cooling capacity of plants was higher in the campus than in the street.Trees cooled and humidified better in the street.The microclimatic conditions of campus in the summer were more stable than the street,which was closer to the ideal environment for plant growth.To enhance the ecological function of the green sites in small-and medium-sized towns,we should select trees,shrubs and grasses with better carbon sequestration and cooling benefits,including S.japonica,Koelreuteria paniculata,Ligustrum lucidum,Prunus cerasifera,A.chinensis,Pinus bungeana,S.chinensis,L.sinense,Ligustrum×vicaryi,P.×fraseri and Ophiopogon japonicas.

关 键 词：街道绿地 校园绿地 固碳 释氧 降温 增湿 基因型主效应及其与环境互作(GGE)双标图 

分 类 号：S68[农业科学—观赏园艺]