上海农业学报2025，Vol.41Issue(6)：48-56,9.DOI:10.15955/j.issn1000-3924.2025.06.07
15种固氮园林树种生理抗旱特征分析
Analysis of physiological drought resistance characteristics of fifteen nitrogen-fixing landscape tree species
摘要
Abstract
Leaf relative water content(RWC),net photosynthetic rate(Pn),stomatal conductance(Gs),intercellular CO2 concentration(Ci),transpiration rate(T),instantaneous water use efficiency(WUE)and nitrogen fixation efficiency(δ15N)of 15 nitrogen-fixing landscape tree species under drought stress were measured,and correlation analysis and cluster analysis were carried out to study the physiological drought resistance characteristics of 15 nitrogen-fixing landscape tree species.The results showed that each landscape species had different responses to each physiological indicator.RWC,Pn,Gs,Ci,Tr,and WUE had extremely significant correlations.Based on analysis of physiological drought resistance indicators,15 nitrogen-fixing landscape tree species were clustered into four categories,among which the drought resistance of Robinia pseudoacacia'Idaho',Albizia julibrissin,Gleditsia sinensis,Rhus typhina,Robinia pseudoacacia,Styphnolobium japonicum,Indigofera amblyantha,Amorpha fruticosa,and Lespedeza bicolor were the strongest,and Cercis glabra,Styphnolobium japonicum'Golden Stem'and Wisteria sinensis were the weakest.The drought resistance characteristics of candidate landscape tree species can be quickly determined based on quantitative measurement and cluster analysis of physiological indicators,which provides scientific basis for the health of green spaces and ecological security of landscape.关键词
固氮/园林树种/生理特征/抗旱Key words
Nitrogen fixation/Landscape tree species/Physiological characteristics/Drought resistance分类
农业科技引用本文复制引用
张德顺,张百川,姚驰远,胡菊..15种固氮园林树种生理抗旱特征分析[J].上海农业学报,2025,41(6):48-56,9.基金项目
国家自然科学基金项目(32071824) （32071824）
2024年同济大学研究生教材建设项目(2024JC07) （2024JC07）
同济大学国家级一流本科课程项目(0100104369) （0100104369）
