Microbial life-history strategies and genomic traits between pristine and cropland soils.

Microbial life-history strategies [inferred from ribosomal RNA operon () gene copy numbers] and associated genomic traits and metabolism potentials in soil significantly influence ecosystem properties and functions globally. Yet, the differences in microbial strategies and traits between disturbed (cropland) and pristine soils, along with their dominant driving factors, remain underexplored. Our large-scale survey of 153 sites, including 84 croplands and 69 pristine soils, combined with long-term field experiments demonstrates that cropland soils support microbial communities with more candidate r-strategies characterized by higher copy numbers and genomic traits conducive to rapid resource utilization.

Thermal sensitivity and rising greenhouse gas emissions in riparian zone soils: Implications for ecosystem carbon dynamics.

Riparian zones, critical interfaces between aquatic and terrestrial ecosystems, play a significant role in global carbon dynamics and greenhouse gas (GHG) emissions. This study investigates the thermal sensitivity (Q) of soil organic carbon decomposition and its implications for GHG emissions in the riparian soils of the Three Gorges Reservoir, China. Through a 42-day incubation experiment at four temperatures (15 °C, 22 °C, 29 °C, and 36 °C), we quantified the Q values for methane (CH) and carbon dioxide (CO) emissions, revealing spatial heterogeneity and a positive correlation with temperature.

Co-inoculation effects of B. licheniformis and P. aeruginosa on soil Cd and As availability and rice accumulation.

There have been studies reporting the effects of multiple bacterial strains on the Cd/As immobilization and transformation in culture media. However, there is limited research to validate the effects of microbial strain combination on plant Cd/As accumulation and antioxidant system in the soil-plant system. By planting the rice (Zhefu 7) with the co-inoculation of bacterial strains (i.