2026-10-12T01:06:33Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33993118 2026-09-25T05:32:49Z category_8 portal_316 item_type_3 month_year_09_2026

Data Sheet 1_Ruminant versus non-ruminant manure composting: carbon-to-nitrogen ratio and associated physicochemical traits impact divergent pollutant emissions.docx Conghui Zhang (3456536) Zhengkang Chen (20437738) Yu Cai (112178) Jing Yuan (217967) Guoying Wang (159551) Guoxue Li (4624855) Microbiology aerobic composting bacterial community carbon-to-nitrogen ratio gaseous emissions ruminant manure <p>Composting can convert livestock manure into valuable fertilizer, but the relationships between manure type, which essentially reflects differences in carbon-to-nitrogen ratio (C/N) and other associated physical properties, and pollutant gas emissions remain poorly quantified. We monitored temperature, pH, carbon, nitrogen, sulphur contents, bacterial succession, and emissions of methane (CH₄), nitrous oxide (N₂O), ammonia (NH₃) and hydrogen sulfide (H₂S) during aerobic composting of non-ruminant manure (chicken and pig) and ruminant manure (sheep and cattle). Sheep and cattle manure (characterized by higher C/N) reached maturity earlier and emitted 30–93% less greenhouse gases and odor than chicken and pig manure (characterized by lower C/N), although cattle manure produced slightly more CH₄. High emissions from chicken and pig manure coincided with dominance of Bacillus and Defluviitalea, which declined as readily available carbon was depleted. In contrast, sheep and cattle manure was associated with Actinomadura and Corynebacterium, genera that correlated with the immobilization of nitrogen and sulphur into stable forms during the degradation of recalcitrant carbon. Ammonium concentration was strongly correlated with the overall emission rate, yet the microbial taxa associated with the process shifted predictably with animal diet. The observed associations provide a basis for future hypothesis-driven experiments. The findings provide a microbiome-based guide for controlling and minimizing atmospheric pollution during composting.</p> 2026-09-25T05:32:49Z Dataset Dataset 10.3389/fmicb.2026.1890442.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Ruminant_versus_non-ruminant_manure_composting_carbon-to-nitrogen_ratio_and_associated_physicochemical_traits_impact_divergent_pollutant_emissions_docx/33993118 CC BY 4.0