Greenhouse gas emissions (CO₂, N₂O, CH₄) and chemical, physical and microbiological properties (pH, macro and micronutrients, texture, moisture, exchangeable NH₄⁺, NO₃⁻, total C and N, organic C, microbial biomass C and metabolic coefficient) were monitored in casts of a large, endogeic native Brazilian earthworm species Rhinodrilus alatus and from non-ingested control soil incubated for up to 32 days. Earthworm casts represented a significantly different chemical and microbiological environment, with higher soil moisture, pH, H + Al, exchangeable NH₄, Cu, Fe and Mn contents, lower microbial biomass C and higher metabolic quotient (qCO₂), but with few differences in CO₂, N₂O and CH₄ emissions compared with non-ingested control soil. Nonetheless, fermenting, methanogenic and nitrate-reducing microbes encountered ideal conditions for sustained anaerobic activity in the clayey, dense and moist castings of R. alatus, maintaining emission of N₂O and CH₄ and confirming previous results observed using gut contents. The high exchangeable NH₄ and H₂O contents influenced the oxy-reduction processes, affected GHG emissions and N transformations and modified soil microbial biomass and activity. In addition, selective ingestion concentrates C and N contents in the casts and transformation processes affect the availability of important plant nutrients, topics that deserve further attention, considering the widespread collection of this species for use as fish-bait in Brazil.

温室气体排放（CO ₂，N ₂ O，CH ₄）和化学，物理和微生物学性质（pH值，宏观和微量营养素，质地，水分，可交换的，NH ₄ ⁺，NO ₃ ^- ，总C和N，有机C，微生物在大型内生的巴西本土worm物种Rhinodrilus alatus的演员表中，以及在长达32天的未摄食的对照土壤中，对生物量C和代谢系数进行了监测 。worm的粪便代表了明显不同的化学和微生物环境，具有较高的土壤湿度，pH，H + Al，可交换的NH ₄，Cu，Fe和Mn含量，较低的微生物生物量C和较高的代谢商（qCO ₂），但与未消化的对照土壤相比，CO ₂，N ₂ O和CH _4的排放差异很小。在粘土质，致密持续厌氧活性和湿润铸件尽管如此，发酵，遇到甲烷和硝酸盐还原微生物理想条件R.矛，保持N个发射₂ O和CH ₄并确认以前的结果使用肠道内容观察。高交换性NH ₄和H ₂O含量影响氧还原过程，影响GHG排放和N转化以及改良的土壤微生物生物量和活性。此外，选择性摄入精铸中的碳和氮含量以及转化过程会影响重要植物养分的供应，考虑到该物种在巴西广泛用作鱼饵，这一问题值得进一步关注。