Nitrate-induced hydroxyl radical releases deep soil organic carbon by opening the 'enzyme latch'under micro-aerobic conditions

W Song, T Clough, H Hou, S Qin - Soil Biology and Biochemistry, 2024 - Elsevier
Deep soils (defined here as soil layers> 1 m beneath the ground) contain a significant
amount of soil organic carbon (SOC) with a relatively slow turnover rate. In oxygen (O 2) limit …

Seasonal and Spatial Fluctuations of Reactive Oxygen Species in Riparian Soils and Their Contributions on Organic Carbon Mineralization

F Liu, Z Wang, J Liu, J Latif, J Qin, H Yang… - Environmental …, 2024 - ACS Publications
Reactive oxygen species (ROS) are ubiquitous in the natural environment and play a pivotal
role in biogeochemical processes. However, the spatiotemporal distribution and production …

Strong Substance Exchange at Paddy Soil-Water Interface Promotes Nonphotochemical Formation of Reactive Oxygen Species in Overlying Water

J Liu, C Zhu, F Zhu, H Sun, J Wang… - … Science & Technology, 2024 - ACS Publications
Photochemically generated reactive oxygen species (ROS) are widespread on the earth's
surface under sunlight irradiation. However, the nonphotochemical ROS generation in …

Critical Role of Mineral Fe (IV) Formation in Low Hydroxyl Radical Yields during Fe (II)-Bearing Clay Mineral Oxygenation

C Yu, W Ji, X Li, S Yuan, P Zhang… - Environmental Science & …, 2024 - ACS Publications
In subsurface environments, Fe (II)-bearing clay minerals can serve as crucial electron
sources for O2 activation, leading to the sequential production of O2•–, H2O2, and• OH …

Dynamic Production of Hydroxyl Radicals during the Flooding–Drainage Process of Paddy Soil: An In Situ Column Study

D Huang, N Chen, C Zhu, H Sun, G Fang… - … Science & Technology, 2023 - ACS Publications
Frequent cycles of flooding and drainage in paddy soils lead to the reductive dissolution of
iron (Fe) minerals and the reoxidation of Fe (II) species, all while generating a robust and …

Determining how oxygen legacy affects trajectories of soil denitrifier community structure, functional dynamics, and N2O emissions

LB Sennett, CA Roco, NYN Lim, JB Yavitt, P Dörsch… - 2024 - researchsquare.com
Denitrification–a key process in the global nitrogen cycle and main source of the
greenhouse gas N 2 O–is intricately controlled by O 2. While the transition from aerobic …