Biochar in sustainable agriculture and Climate Mitigation: Mechanisms, challenges, and applications in the circular bioeconomy

Biomass and Bioenergy, Journal Year: 2024, Volume and Issue: 193, P. 107531 - 107531

Published: Dec. 6, 2024

Language: Английский

---

Biochar’s effect on the soil carbon cycle: a rapid review and meta-analysis

Biochar, Journal Year: 2024, Volume and Issue: 6(1)

Published: Oct. 17, 2024

Abstract Biochar offers opportunities for improving soil carbon (C) sequestration and reducing CO 2 emissions to the atmosphere. It has emerged as a strategy mitigating climate change cycle (SCC). While previous review studies have primarily investigated effects of biochar on greenhouse gas (GHG) emissions, considerable research gap remains regarding its impact SCC. The present study aims bridge this by examining main SCC components: total flux, microbial respiration, C sequestration. We conducted global meta-analysis which included 75 250 observations. results show an average 11% increase in flux from biochar, but confidence interval (CI) slightly touches no-effect line (CI [0%, 23%]). Total respiration unchanged after application (10%, CI [− 2%, In contrast, benefits 61% [36%, 90%]). Our analysis identified key predictors affecting experimental design, continent, rate, feedstock type, pyrolysis temperature. Incubation experiments reveal all components. Middle East, Europe, Asia exhibit potential enhancing with biochar. Higher rates amplify respiration. Manure enhances while woody influences flux. Furthermore, lower temperatures promise conclusion, holds sequestration, inconclusive.

Language: Английский

---

Competitive adsorption mechanisms of multicomponent gases in kaolinite under electric fields: A molecular perspective

Geoenergy Science and Engineering, Journal Year: 2024, Volume and Issue: 238, P. 212897 - 212897

Published: May 7, 2024

Language: Английский

---

Biochar and Straw Amendments over a Decade Divergently Alter Soil Organic Carbon Accumulation Pathways

Agronomy, Journal Year: 2024, Volume and Issue: 14(9), P. 2176 - 2176

Published: Sept. 23, 2024

Exogenous organic carbon (C) inputs and their subsequent microbial mineral transformation affect the accumulation process of soil C (SOC) pool. Nevertheless, knowledge gaps exist on how different long-term forms crop straw incorporation (direct return or pyrolyzed to biochar) modifies SOC composition stabilization. This study investigated, in a 13-year field experiment, functional fractions protection by iron (Fe) oxide minerals soils amended with biochar. Under equal input, was enhanced both direct (by 43%) biochar 85%) compared non-amended conventional fertilization, but pathways. Biochar had greater efficiency increasing through stable exogenous inhibition respiration. Moreover, biochar-amended contained 5.0-fold SOCs particulate matter (POM) 1.2-fold more mineral-associated (MAOM) relative conventionally fertilized soils. Comparatively, although magnitude effect smaller, straw-derived OC preserved preferentially most MAOM. Straw increased nutrient content stimulated activity, resulting increases necromass POM MAOM 117% 43%, respectively) 72% 18%). promoted poorly crystalline (Feo) organically complexed (Fep) Fe oxides accumulation, were significantly positively correlated SOC. The results address decadal-scale effects application formation pool soil, understanding causal mechanisms can allow practices maximize content. These are great implications for better predicting accurately controlling response pools agroecosystems future changes disturbances maintaining regional balance.

Language: Английский

---

Microbial carbon capture - evolving trends, interconnections, and recent spotlights of the past three decades

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 482, P. 148970 - 148970

Published: Jan. 22, 2024

Language: Английский

---