土壤学报2026，Vol.63Issue(3)：867-877,11.DOI:10.11766/trxb202502280084
多年CO2浓度升高对水稻子代植株磷素吸收与分配的影响
Effects of Elevated CO2 on Phosphorus Uptake and Distribution in Rice for Multiple Generations
摘要
Abstract
[Objective]With the intensification of human activities since the Industrial Revolution,there is a continuous rise in carbon dioxide concentration in the atmosphere,which has become the main feature of global climate change.Rice being an important staple crop,it is important to explore its absorption and distribution of phosphorus under a long-term elevated CO2 environment.[Method]In this study,a multigenerational experiment was carried out cultivating Yangdao 6(indica)and Wuyunjing 23(japonica)in the Free Atmospheric CO2 Enrichment System(FACE)in Changshu,Jiangsu Province.The experiment was carried out under ambient CO2 and elevated CO2(increased by 200 μmol·mol-1)conditions for seven generations,and the differences in phosphorus concentration,phosphorus uptake,and phosphorus distribution between the single-generation and multigenerational rice plants were evaluated.[Results](1)Long-term elevated CO2 had no significant effect on the phosphorus concentration of multigenerational rice plants in Yangdao 6 and Wuyunjing 23.(2)The long-term elevated CO2 significantly increased the phosphorus uptake of shoots in single-generation and multigenerational rice plants.However,the average increase in phosphorus uptake of the shoot and panicle of the offspring plant of Yangdao 6 was lower than that of the single-generation plant.On the contrary,the average increase in phosphorus uptake of shoot,straw,and panicle of the offspring plant of Wuyunjing 23 was higher than that of the single-generation plant under elevated CO2.(3)The average increasing effect of elevated CO2 on the phosphorus distribution in the straw of Wuyunjing 23 increased significantly with the increase in generations of maternal seeds under elevated CO2.[Conclusion]The results indicate that in the past,based on the single-generation short-term FACE studies,the real effect of long-term elevated CO2 on phosphorus uptake and distribution in rice plants could not be accurately predicted in the future.Therefore,this study provides guidelines for field-level phosphorus fertilizer management in a future high-CO2 world.关键词
CO2浓度升高/水稻/磷素吸收/磷素分配/子代Key words
Elevated CO2/Rice/Phosphorus uptake/Phosphorus distribution/Multiple generations分类
农业科技引用本文复制引用
顾歆悦,蔡创,尹斌,朱春梧..多年CO2浓度升高对水稻子代植株磷素吸收与分配的影响[J].土壤学报,2026,63(3):867-877,11.基金项目
鄂尔多斯市科技重大专项(2022EEDSKJZDZX010)、国家重点研发计划项目(2023YFD1500801)和江苏省重点研发计划(现代农业)(BE2022308)资助 Supported by the Ordos City Science and Technology Major Project(No.2022EEDSKJZDZX010),the National Key Research and Development Program of China(No.2023YFD1500801),and the Jiangsu Provincial Key Research and Development Program(No.BE2022308) （2022EEDSKJZDZX010）
