Climate warming shifts the time interval between flowering and leaf unfolding depending on the warming period

作     者：Shuxin Wang Zhaofei Wu Yufeng Gong Shubiao Wang Wei Zhang Shanshan Zhang Hans J.De Boeck Yongshuo H.Fu 

作者机构：College of Water SciencesBeijing Normal UniversityBeijing 100085China Beijing ZooBeijing 100044China Plants and EcosystemsDepartment of BiologyUniversity of AntwerpAntwerpAntwerpen 2000Belgium 

出 版 物：《Science China(Life Sciences)》 (中国科学（生命科学英文版）)

年 卷 期：2022年第65卷第11期

页      面：2316-2324页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 0713[理学-生态学] 

基　　金：the National Funds for Distinguished Young Scholar(42025101) the International Cooperation and Exchanges NSFC-FWO(32111530083) the 111 Project(B18006) 

主　　题：chilling flowering leaf unfolding photoperiod spring phenology time interval warming period 

摘      要：The timing of flowering(FL)and leaf unfolding(LU)determine plants’reproduction and vegetative *** warming has substantially advanced FL and LU of temperate and boreal plants,but their responses to warming differ,which may influence the time interval between FL and LU(ΔLU-FL),thereby impacting plant fitness and intraspecific physiological *** on twigs collected from two flowering-first tree species,Populus tomentosa and Amygdalus triloba,we conducted a manipulative experiment to investigate the effects of winter chilling,spring warming and photoperiod on theΔ*** found that photoperiod did not affect theΔLU-FL of Amygdalus triloba,but shortenedΔLU-FL by 5.1 d of Populus ***,spring warming and winter chilling oppositely affected theΔLU-FL of both ***,low chilling accumulation extended theΔLU-FL by 3.8 and 9.4 d for Populus tomentosa and Amygdalus triloba,but spring warming shortened theΔLU-FL by 4.1 and 0.2 d℃^(-1).Our results indicate that climate warming will decrease or increase theΔLU-FL depending on the warming periods,i.e.,spring or *** shifted time interval between flowering and leaf unfolding may have ecological effects including affecting pollen transfer efficiency and alter the structure and functioning of terrestrial ecosystem.