From Enteric Methane to Agricultural System Rebalancing: Animal Metabolism, Pathway Accommodation, and Sustainable Agricultural Modernization
欧阳佳惠1
作者信息
1. 西北师范大学
折叠
Abstract
Enteric methane from ruminants is commonly framed as a greenhouse gas emission problem to be reduced through feed additives, microbial regulation, manure treatment, or livestock management. While these approaches are necessary, this paper argues that methane should not be treated only as an emission object. Rumen methane is first a metabolic outlet formed through anaerobic fermentation, hydrogen release, carbon-flow conversion, and animal–microbial symbiosis. It becomes a governance pressure when this metabolic outlet is amplified by high-density livestock production, externalized feed dependence, concentrated manure discharge, insufficient soil accommodation, and broken energy pathways. This paper therefore proposes a shift from emission governance to pathway governance. Rather than asking only how methane can be reduced, pathway governance asks where methane originates, why the node is amplified, which downstream pathways have failed, and how metabolic products can be re-accommodated within energy, soil, biological, and regional circulation systems. The paper examines animal metabolism, rumen microbial relations, feed-pathway mismatch, stocking-density mismatch, manure-pathway mismatch, and methane-use pathways such as biogas, methanotrophs, microbial protein, synthetic fuels, and high-value conversion. It concludes that sustainable methane governance must integrate animal health, microbiome stability, manure return, soil restoration, energy recovery, and regional carrying capacity. There are no natural enemies, only pathways not yet reorganized
欧阳佳惠.From Enteric Methane to Agricultural System Rebalancing: Animal Metabolism, Pathway Accommodation, and Sustainable Agricultural Modernization[EB/OL].(2026-06-10)[2026-06-11].https://sinoxiv.napstic.cn/article/25960316.
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