垄厢节水栽培对稻田温室气体排放和产量的影响

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关键词：垄厢栽培；温室气体；水分管理；水溶性有机碳；无机氮中图分类号：X144;S511 文献标志码：A 文章编号：1672-2043（2025）10-2720-08 doi：10.11654/jaes.2024-0906

Abstract：Inodertolarifythefectsofwatersavingirgationridgeandoxcultivationongreenhousegasemissosandyieldinpddy fields，thisexperimentwascarredoutin2O22 toexploretheefectsofridgeandboxwatersavingcultivation（RWSandCWS）onthe cumulativeemisionsofCHandNO，globalwrmingpotential，yield，andthecontentofwater-solubleorgaiccarbon（WDOC）and inorganicnitrogeninpaddyfields.RelatioshipetweengreenousegasemisionsandWDOCandiorganicnitrogencontentunderwater saving cropping mode.TheresultsshowedthatcomparedwiththeCK treatment，thecumulativeN2OemissonsofRWSand CWS treatments increased by 54.72% and 16.98% ，respectively，while the cumulative emissions ofCH ，4 decreased by 31.63% and 27.72% respectively，and the global warming potential decreased by 31.62% and 27.70% ，and the emission intensity decreased by 36.09% and （20 30.83% ，respectively.Theyield ofRWSand CWStreatmentincreased by 7.11% and 4.78% compared with that of CK treatment. Correlation analysis showed that CH -4 emissions were significantly positively correlated with WDOC and NH4-N，but negatively correlated withnitrateotiotsNissiseosiilyrdi-nd Fromtheperspectiveof totalefect，RWandCWStreatmentsaebeneficialtoincreasericeyieldadefectivelyducegreousegas emisions inpaddyfelds.Therefore，watersavingcultivationinidgesandcompartmentsisacultivationmethodtoachievehighyieldof rice and reduce greenhouse gas emissions.

KeyWords：ridge boxcultivation;greenhouse gas; moisture management; water-soluble organic carbon; inorganicnitrogen

农业活动引起的甲烷（ CH4 ）、氧化亚氮 （N2O） 和二氧化碳（ CO2 ）等温室气体过度排放是全球变暖的主要原因之一[]。（剩余17640字）