CAJ | 학술논문

采用静态箱-气相色谱监测体系研究了上海郊区3种不同施肥条件下稻田系统温室气体（GHGs）排放特征及其全球增温潜能（GWP）。研究结果表明：施肥能显著增加稻田系统CO2的排放通量，但不同施肥条件对其影响差异不显著；施用有机肥能显著增加稻田系统CH4的排放通量，同时也能显著降低稻田N2O排放通量。整个水稻生育期，不施肥CK处理的GWP最低，为14852 kg CO2·hm-2。相较于CK处理，施用尿素的CT处理、有机无机混施的MT处理和施用有机肥的OT处理分别增加了86.9%、111.5%和134.3%的稻田GWP，表明施肥会增加稻田土壤GHGs的GWP。
채용정태상-기상색보감측체계연구료상해교구3충불동시비조건하도전계통온실기체（GHGs）배방특정급기전구증온잠능（GWP）。연구결과표명：시비능현저증가도전계통CO2적배방통량，단불동시비조건대기영향차이불현저；시용유궤비능현저증가도전계통CH4적배방통량，동시야능현저강저도전N2O배방통량。정개수도생육기，불시비CK처리적GWP최저，위14852 kg CO2·hm-2。상교우CK처리，시용뇨소적CT처리、유궤무궤혼시적MT처리화시용유궤비적OT처리분별증가료86.9%、111.5%화134.3%적도전GWP，표명시비회증가도전토양GHGs적GWP。
Greenhouse gas(GHG)emissions from agricultural production systems contribute largely to global warming. A field experiment was conducted to examine GHG emissions under three different fertilization practices(CT-urea alone, MT-80%urea plus 20%manure and OT-manure alone)in Shanghai suburb, China. Carbon dioxide, methane and nitrous oxide were collected and measured by static chamber-gas chromatography system. Compared to the control(CK), fertilization significantly increased carbon dioxide emission from paddy field, but no differences were found between fertilization treatments. Organic manure significantly increased methane emission, but greatly decreased nitrous oxide emission from paddy field. During the whole rice season, CK had the lowest seasonal Global Warming Potential(GWP)with 14 852 kg CO2·hm-2. Urea alone and organic manure alone and their combinations increased seasonal GWP by 86.9%, 134.3%and 111.5%, respectively, as compared with CK. The observed data demonstrate that fertilization could increase GHG emission and GWP from paddy field.