The below-ground biomass contributes more to wetland soil carbon pools than the above-ground biomass-a survey based on global wetlands

作     者：Yueyan Pan Jiakai Liu Mingxiang Zhang Peisheng Huang Matt Hipesy Liyi Dai Ziwen Ma Fan Zhang Zhenming Zhang 

作者机构：School of Ecology and Nature ConservationBeijing Forestry UniversityBeijing 100083China UWA School of Agriculture and EnvironmentThe University of Western AustraliaPerthWA 6009Australia 3School of Soil and Water ConservationBeijing Forestry UniversityBeijing 100083China 

出 版 物：《Journal of Plant Ecology》 (植物生态学报（英文版）)

年 卷 期：2024年第17卷第5期

页      面：17-28页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

基　　金：supported by the Fundamental Research Funds for the Central Universities(2022BLRD004 and BH2022-03) 

主　　题：plant biomass global scale organic carbon pool organic carbon sensitivity wetland 

摘      要：The biomass of wetland plants is highly responsive to environmental factors and plays a crucial role in the dynamics of the soil organic carbon(SOC)*** this study,we collected and analyzed global data on wetland plant biomass from 1980 to *** examining 1134 observations from 182 published papers on wetland ecosystems,we created a comprehensive database of wetland plant above-ground biomass(AGB)and below-ground biomass(BGB).Using this database,we analyzed the biomass characteristics of different climate zones,wetland types and plant species *** on this,we analyzed the differences between the biomass of different plant species and the linkage between AGB and BGB and organic *** study has revealed that wetland plant AGB is greater in equatorial regions but BGB is highest in polar areas,and lowest in arid and equatorial *** plant species,the BGB of the Poales is higher than the AGB but Caryophyllales,Cyperales and Lamiales have higher ***,our findings indicate that BGB plays a more significant role in contributing to the organic carbon pool compared to ***,when BGB is less than 1 t C ha^(-1),even slight changes in biomass can have a significant impact on the organic carbon *** we observed that the SOC increases by 5.7 t C ha^(-1)when the BGB content is low,indicating that the SOC is more sensitive to changes in biomass under such *** study provides a basis for the global response of AGB and BGB of wetland plants to organic carbon.