Can fine sediment addition promote carbon stabilization in coastal wetland soils? A laboratory experiment DOI
Anthony J. Mirabito,

Jason A. Anandappa,

Nia Hurst

et al.

Soil Science Society of America Journal, Journal Year: 2025, Volume and Issue: 89(2)

Published: March 1, 2025

Abstract Scientists are increasingly exploring soil carbon (C) stabilization processes that protect organic C from microbial decomposition. Mineral‐associated matter (MAOM) is considered one of the most protected pools C, but remains understudied in wetland soils relative to upland soils. Using complementary intact core and bottle incubation studies, this research investigated how fine sediment addition, form dredged sediment, impacts respiration MAOM coastal vary by (SOM) content particle size. We hypothesized additions would reduce increase pools, with greatest response addition being high SOM soil. Contrary our prediction, sediments cores did not change rate, CO 2 production rate decreased 21% low cores, mass MAOM‐C increased 23% after receiving additions. In study only, varied initial Specifically, largest particles (>2 mm) showed a 1727% MAOM‐C, which coincides 49% decrease CH 4 rate. Overall, protection resulting differed type texture, suggesting properties (e.g., existing mineral content, nutrient availability, degree decomposition) influence through these should be when choosing potential restoration sites.

Language: Английский

Can fine sediment addition promote carbon stabilization in coastal wetland soils? A laboratory experiment DOI
Anthony J. Mirabito,

Jason A. Anandappa,

Nia Hurst

et al.

Soil Science Society of America Journal, Journal Year: 2025, Volume and Issue: 89(2)

Published: March 1, 2025

Abstract Scientists are increasingly exploring soil carbon (C) stabilization processes that protect organic C from microbial decomposition. Mineral‐associated matter (MAOM) is considered one of the most protected pools C, but remains understudied in wetland soils relative to upland soils. Using complementary intact core and bottle incubation studies, this research investigated how fine sediment addition, form dredged sediment, impacts respiration MAOM coastal vary by (SOM) content particle size. We hypothesized additions would reduce increase pools, with greatest response addition being high SOM soil. Contrary our prediction, sediments cores did not change rate, CO 2 production rate decreased 21% low cores, mass MAOM‐C increased 23% after receiving additions. In study only, varied initial Specifically, largest particles (>2 mm) showed a 1727% MAOM‐C, which coincides 49% decrease CH 4 rate. Overall, protection resulting differed type texture, suggesting properties (e.g., existing mineral content, nutrient availability, degree decomposition) influence through these should be when choosing potential restoration sites.

Language: Английский

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