有机肥和生物菌剂对菜地土壤 N2O 排放及土壤团聚体的影响
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关键词：有机肥；生物菌剂； N20 ；团聚体；产量
中图分类号：X71;S153；X144 文献标志码：A 文章编号：1672-2043（2026）01-0251-11 doi：10.11654/jaes.2025-0204
Effects of organic fertilizer and microbial agentapplication onsoil N2O emission and soil aggregate in vegetable fields
MA Jing，LU Xinyu， SONG Junjie，SUNLiying* （ScholofEcologyandAppliedMeteorology，Nanjing UniversityofInformationScienceandtechnology，Nanjing104，Cina）
Abstract：IndtexploesofeentfertilaotraenilNOssoneddsleateiabe felds，thestudytookvegetablefeldsinanjngastereseachject，ndstp5tramentschosistedfnoertilatio（K）， chemicalnitronferttioU）altrnertmobalgentla（U）certldf （204号 25% chemical nitrogen fertilizer（O）and organic fertilizer instead of 25% chemical nitrogen fertilizer and microbial agent application （OM）.Thestudyemployedthestaticchamber-gaschromatographymethodtomonitorNOemisionsfromvegetablefieldsoilsand analyzed the effects of diferent fertilization treatments on NO emission fluxes，global warming potential（ GWPν ），greenhouse gas intensity （GHGI），cropyield，soilaggregatecompositionndeconomicbenefits.TheresultsshowedthattheumulativeNOemissiosofsoils treated with O treatment increased by 12.70% compared with the U treatment， while those treated with UM and OM decreased. Specifically， the cumulative N2O emission of soils treated with UM treatment was decreased by 16.67% ，and those treated with OM treatment was significantly decreased by 23.81 % （ P <0.05）.Among the fertilization treatments，the highest yield was achieved with the OM treatment， reaching 11.9 Δt hm-2 ，followed by theO treatment with ayield of 11.2t⋅hm-2 . In addition，the O and OM treatments reduced the proportion of <0.25 mmsoil aggregates，increasedtheproprtionoflrgesoilaggregates，andeancedsoilaggregatestabilityandeonomicfits. Itcanbeseenatorganicfertliercombiedwithicrobialagentreatmentisafeasiblemeasretoacievelowcaboandigheldin agriculture which can help reduce soil N2O emission and increase crop yield.
Keywords：organic fertilizer;microbial agent; N2O ;aggregate; yielc
N2O 既是消耗臭氧层的化学物质，也是影响地球辐射平衡的长寿命温室气体，在100a时间尺度上，其全球增温潜势是 CO2 的273倍。（剩余22487字）
