废弃物在抑制茉莉土壤温室气体产生中的应用

Application of Waste Inhibition on Jasmine Soil Greenhouse Gas Production

选取福州帝封江茉莉园为研究样点,采用室内培养-气相色谱法对对照、贝壳、石膏、炉渣、生物炭和花杆添加后土壤甲烷、氧化亚氮与二氧化碳产生进行了测定和分析。结果表明:在整个观测期内,对照、贝壳、石膏、炉渣、生物炭、花杆处理甲烷平均产生分别为0.014、0.012、0.012、0.012、0.013、0.014μg/(g·d),各处理分别比对照减少了16.7%、16.7%、15.2%、7.25%、2.17%;土壤氧化亚氮平均产生分别为0.008、0.014、0.030、0.015、0.009、0.019μg/(g·d),各处理均未减少氧化亚氮的产生;土壤二氧化碳平均产生分别为58.7、79.5、86.5、51.0、44.7、1050μg/(g·d),炉渣、生物炭分别比对照减少了13.1%和23.8%;贝壳、石膏的添加均能有效抑制茉莉土壤甲烷的产生;炉渣、生物炭的添加能有效抑制茉莉土壤甲烷和二氧化碳的产生;但各处理并未有效抑制茉莉土壤氧化亚氮的产生。

Difengjiang Jasmine Garden of Fuzhou was chosen as the study site. Methane,nitrous oxide and carbon dioxide production were in the control,and shell,gypsum,slag,biochar and straw addition treatments were determined by experiment incubation-gas chromatogram method. The results showed： During the whole observation period,averaged methane production were 0. 014,0. 012,0. 012,0. 012,0. 013,0. 014 μg /（ g · d）,respectively. All addition treatment were decreased by 16. 7%,16. 7%,15. 2%,7. 25%,2. 17% comparison with the control,respectively.Averaged nitrous oxide production were 0. 008,0. 014,0. 030,0. 015,0. 009,0. 019 μg /（ g·d）,respectively. All addition treatments were not decreased nitrous oxide production comparison with that of the control,respectively.Averaged carbon dioxide production were 58. 7,79. 5,86. 5,51. 0,44. 7,1050 μg /（ g · d）,respectively. Slag,biochar addition treatment were decreased by 13. 1%,23. 8% comparing with the control,respectively. Shell,gypsum addition inhibited the jasmine soil methane production. Slag,biochar addition inhibited the jasmine soil methane and carbon dioxide production,however,all addition could not inhibit the jasmine soil nitrous oxide production.