Pedosphere (3): 560--568, 2025
ISSN 1002-0160/CN 32-1315/P
©2025 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Evaluation of soil metazoan communities under short-term elevated CO2 and O3 concentrations in a paddy soil |
Jianqing WANG1,3, Jiaoyan MAO1,3, Manuel Esteban LUCAS-BORJA4, Yunyan TAN1,3, Yajun SHAO1,3, Roy NEILSON5, Xiuzhen SHI1,3 , Guoyou ZHANG2 |
1 Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Institute of Geography, Fujian Normal University, Fuzhou 350117 (China);
2 School of Ecology and Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044 (China);
3 Fujian Provincial Key Laboratory for Subtropical Resources and Environment, School of Geographical Sciences, Fujian Normal University, Fuzhou 350117 (China);
4 Higher Technical School of Agricultural and Forestry Engineering, Castilla-La Mancha University, Campus Universitario s/n, Albacete 02071 (Spain);
5 Ecological Sciences, The James Hutton Institute, Dundee DD2 5DA (UK) |
| ABSTRACT |
| Soil biota mediates key ecological processes and delivers a range of societally important ecosystem services. However, the impacts of atmospheric changes on soil metazoans have been understudied. To address this knowledge gap, we evaluated the short-term responses of soil metazoans to elevated carbon dioxide (CO2) and ozone (O3) with two commonly grown rice varieties (Nanjing 5055 and Wuyujing 3) in a paddy soil. A simultaneous increase of CO2 and O3 concentrations had a negligible effect on the diversity of Annelida, Mollusca, Porifera, and total soil metazoans, suggesting that soil metazoan taxa had an inherent resilience to atmospheric changes. However, elevated CO2 alone significantly enhanced the diversity and relative abundances of Craniata and Platyhelminthes for Wuyujing 3 under ambient O3 conditions. However, elevated O3 decreased the diversity and relative abundance of Craniata by 42.7% and 47.7%, respectively, especially under elevated CO2 conditions for Wuyujing 3, demonstrating significant interactive effects. Furthermore, soil NO3--N and NH4+-N contents mostly shaped the changes in the diversity and composition of soil metazoan communities. These results highlight the crucial role of rice variety regulating soil metazoan communities under the complex interaction between short-term elevated CO2 and O3. Thus, to better understand the mechanisms and processes within soil food webs, future studies should include the combined effects of various climate change factors and different crop varieties on soil metazoan communities. |
| Key Words: climate change|CO2 enrichment|enhanced ozone|environmental DNA|rice varieties|soil fauna|soil food web |
| Citation: Wang J Q, Mao J Y, Lucas-Borja M E, Tan Y Y, Shao Y J, Neilson R, Shi X Z, Zhang G Y. 2025. Evaluation of soil metazoan communities under short-term elevated CO2 and O3 concentrations in a paddy soil. Pedosphere. 35(3): 560-568. |
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