Marina Azzaroli Bleken

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About

Marina Azzaroli Bleken is a leading researcher in agricultural biogeochemistry, specializing in the intricate dynamics of soil nitrogen cycling and greenhouse gas emissions. Her work focuses on how management practices—such as liming, legume inclusion, and ploughing timing—influence nitrous oxide (N₂O) fluxes from temperate grasslands. A major contribution is her elucidation of freeze-thaw-induced N₂O pulses, demonstrating that clover proportion in grass leys dramatically increases winter N₂O accumulation and emission, while soil pH elevation can mitigate these losses. Her 2020 study on winter N₂O dynamics in sub-boreal grassland (20 citations) and her 2022 field work showing that soil pH-increase strongly mitigated N₂O emissions after autumn ploughing (18 citations) are pivotal, providing evidence-based strategies for reducing agricultural climate impacts. Bleken’s research bridges fundamental soil microbiology with practical agronomy, offering farmers actionable insights to balance nitrogen efficiency and environmental stewardship. Her work is essential reading for anyone studying sustainable intensification, soil chemistry, or climate-smart agriculture.