Response of the Stabilization of Organic Carbon to Straw Incorporation and Nitrogen Application: Evidence from Carbon Fractions and Bacterial Survival Strategies DOI Creative Commons

Shenglin Liu,

Xiaodong Ding,

Zeqiang Sun

и другие.

Agronomy, Год журнала: 2025, Номер 15(5), С. 1034 - 1034

Опубликована: Апрель 25, 2025

Despite the global imperative to enhance carbon sequestration in agricultural landscapes, saline–alkali soils present distinctive soil–microbe constraints that limit our understanding of optimal management strategies. This study addresses critical knowledge gaps regarding mechanistic relationships between bacterial community structure and stabilization processes soil. A three-year field experiment was conducted Yellow River Delta, China, with two N levels (N1, 270 kg ha−1; N2, 210 ha−1) three C treatments (S0, 0 S1, 5000 S2, 10,000 ha−1). SOC by straw incorporation increased 16.34–22.86% 8.18–11.91%, no significant difference S1 S2 treatments, because specific mineralization rate (SCMR) treatment 13.80–41.61% higher than treatment. The reduced nitrogen application (N2) enhanced efficiency 3.40–12.97% compared conventional rates, particularly when combined half incorporation. Furthermore, N1S1 treatment, N2S1 induced qualitative transformations chemistry, increasing aromatic compounds (28.79%) while reducing carboxylic fractions (10.06%), resulting structural stability sequestered carbon. Bacterial analysis revealed shifts composition under different treatments. Half (S1) abundance oligotrophic strategists (Verrucomicrobiae Acidimicrobiia) decreasing copiotrophic bacteria (Bacteroidia), indicating a transition from r-strategy k-strategy microbial communities fundamentally altered cycling. were beneficial stabilize composition, reduce optimize survival strategy, thus achieve sequestration.

Язык: Английский

Impact of vegetation restoration on soil organic carbon fractions: A global meta-analysis DOI
Xiaoshan Zhang,

Jiajia Fu,

Peng Ma

и другие.

Ecological Engineering, Год журнала: 2025, Номер 216, С. 107640 - 107640

Опубликована: Апрель 14, 2025

Язык: Английский

Процитировано

0
Response of the Stabilization of Organic Carbon to Straw Incorporation and Nitrogen Application: Evidence from Carbon Fractions and Bacterial Survival Strategies DOI Creative Commons

Shenglin Liu,

Xiaodong Ding,

Zeqiang Sun

и другие.

Agronomy, Год журнала: 2025, Номер 15(5), С. 1034 - 1034

Опубликована: Апрель 25, 2025

Despite the global imperative to enhance carbon sequestration in agricultural landscapes, saline–alkali soils present distinctive soil–microbe constraints that limit our understanding of optimal management strategies. This study addresses critical knowledge gaps regarding mechanistic relationships between bacterial community structure and stabilization processes soil. A three-year field experiment was conducted Yellow River Delta, China, with two N levels (N1, 270 kg ha−1; N2, 210 ha−1) three C treatments (S0, 0 S1, 5000 S2, 10,000 ha−1). SOC by straw incorporation increased 16.34–22.86% 8.18–11.91%, no significant difference S1 S2 treatments, because specific mineralization rate (SCMR) treatment 13.80–41.61% higher than treatment. The reduced nitrogen application (N2) enhanced efficiency 3.40–12.97% compared conventional rates, particularly when combined half incorporation. Furthermore, N1S1 treatment, N2S1 induced qualitative transformations chemistry, increasing aromatic compounds (28.79%) while reducing carboxylic fractions (10.06%), resulting structural stability sequestered carbon. Bacterial analysis revealed shifts composition under different treatments. Half (S1) abundance oligotrophic strategists (Verrucomicrobiae Acidimicrobiia) decreasing copiotrophic bacteria (Bacteroidia), indicating a transition from r-strategy k-strategy microbial communities fundamentally altered cycling. were beneficial stabilize composition, reduce optimize survival strategy, thus achieve sequestration.

Язык: Английский

Процитировано

0