生态学杂志2024，Vol.43Issue(6)：1638-1645,8.DOI:10.13292/j.1000-4890.202406.012
青藏高原高寒区植物叶片性状对模拟增温的响应
The response of plant leaf traits to simulated warming in the alpine region of Qinghai-Tibet Plateau
摘要
Abstract
Climate change may bring huge potential risks to alpine ecosystems of Qinghai-Tibet Plateau.Leaf traits can reflect the process and mechanisms of plant response to climate change.In this study,a free-air infrared heating method was used to simulate temperature increasing in Haibei alpine meadow in Qinghai.The effects of temperature increasing on eight leaf traits of eight species in an alpine meadow were examined.The results showed that five traits of some plants,including leaf size,vein length per area,vein mass per leaf mass,leaf mass per area,and leaf car-bon isotope discrimination,changed significantly after eight years of warming,while the change of carbon-nitrogen content and carbon-nitrogen ratio was not significant.Leaf size was more sensitive to temperature changes than other traits.Increasing temperature had a significant long-term effect on leaf traits,but there were significant differences in the direction and degree of the responses of different traits.There were differences in the effects of warming on leaf traits of species with different distribution types and leaf vein types.Plants showed diverse responses to environ-mental changes,which were manifested in the differential response of the same traits of different plant species to climate.At the same time,they are also manifested in the coordinated responses of different traits of the same spe-cies to climate change.关键词
气候变化/高寒草甸/增温/叶片性状/协同响应/青藏高原Key words
climate change/alpine meadow/warming/leaf trait/synergistic response/Qinghai-Tibet Plateau引用本文复制引用
王慧清,王常顺,吕汪汪,姜丽丽,李博文,王奇,斯确多吉,汪诗平..青藏高原高寒区植物叶片性状对模拟增温的响应[J].生态学杂志,2024,43(6):1638-1645,8.基金项目
国家自然科学基金项目(31272488,41230750)和呼伦贝尔市科技计划项目(SF2022013)资助. （31272488,41230750）
