干旱区研究2026，Vol.43Issue(5)：988-1000,13.DOI:10.13866/j.azr.2026.05.09
基于叶片特征的18种盐生植物耐盐性综合评价
Comprehensive evaluation of salt tolerance in 18 halophyte species using leaf characteristics
摘要
Abstract
Soil salinization is a critical barrier to ecological restoration and sustainable development in the arid re-gions of Northwest China.To screen for plant resources suitable for greening saline-alkali lands in this area and then evaluate their efficacy,this study focused on 18 halophyte species from the Karamay Halophyte Botanic Gar-den,and considered Xanthoceras sorbifolium as a control.Twenty physiological and biochemical indicators were systematically measured under salt stress,including leaf water content,leaf thickness,chlorophyll content,antiox-idant enzyme activities,and chlorophyll fluorescence parameters.A comprehensive salt tolerance evaluation sys-tem based on leaf traits was constructed using principal component analysis(PCA)and the membership function method.The results showed significant differences in salt tolerance among the 19 species,with comprehensive evaluation values(D-values)ranging from 0.20 to 0.67.Among the plants tested,Caragana sinica and Suaeda salsa demonstrated the strongest salt tolerance(D=0.67),whereas Xanthoceras sorbifolium was the most sensi-tive(D=0.20).PCA revealed that photosynthetic fluorescence parameters and the antioxidant enzyme system are core indicators that reflect plant salt tolerance.This evaluation system is objective and accurate;the identified su-perior halophytes provide important germplasm resources and have a scientific basis for vegetation restoration,ecological rehabilitation,and landscaping in saline-alkali land of the arid regions of Northwest China.关键词
盐生植物/植物性状/主成分分析/耐盐性Key words
halophyte/plant trait/principal component analysis/salt tolerance引用本文复制引用
邢泽明,徐培桐,王俊培,王雷..基于叶片特征的18种盐生植物耐盐性综合评价[J].干旱区研究,2026,43(5):988-1000,13.基金项目
国家重点研发计划项目(2023YFF1304703) （2023YFF1304703）
自治区天山英才-青年科技拔尖人才项目(2022TSYCCX0039) （2022TSYCCX0039）
