本文選題：溫室氣體　切入點(diǎn)：甲烷　出處：《農(nóng)業(yè)工程學(xué)報(bào)》2017年19期 　論文類型：期刊論文

【摘要】：該文采用Meta分析方法定量分析生物質(zhì)炭輸入對(duì)中國(guó)主糧作物痕量溫室氣體的影響,研究可為農(nóng)田痕量溫室氣體減排提供有效的途徑。結(jié)果表明相對(duì)于不施加生物質(zhì)炭,生物質(zhì)炭輸入對(duì)甲烷吸收/排放并無顯著影響,而甲烷排放在不同耕作和施氮情況下發(fā)生顯著變化。旋耕和不施氮情況下施加生物質(zhì)炭分別顯著提高稻田甲烷排放達(dá)30%和46%,而在翻耕和施氮的情況下施加生物質(zhì)炭可減少稻田甲烷排放達(dá)9%和10%。生物質(zhì)炭輸入分別可顯著減少主糧作物氧化亞氮、全球增溫潛勢(shì)(global warming potential,GWP)及溫室氣體排放強(qiáng)度(greenhouse gas intensity,GHGI)達(dá)41%、18%及25%。不同土地利用類型、耕作類型、生物質(zhì)炭施用量及生物質(zhì)炭類型均可顯著影響農(nóng)田氧化亞氮、GWP和GWPI。合理的管理主糧作物生物質(zhì)輸入可為減少溫室氣體排放做出貢獻(xiàn),建議生物質(zhì)炭與施氮和翻耕2種農(nóng)作措施相結(jié)合,施加小于10 t/hm~2及碳氮比(C/N)低于80的生物質(zhì)炭,以利于主糧作物綜合溫室效應(yīng)的減排。
[Abstract]:In this paper, the effects of biomass carbon input on trace greenhouse gases in main grain crops in China were quantitatively analyzed by using Meta analysis method. The results showed that the method could provide an effective way to reduce the trace greenhouse gas emissions in farmland, and the results showed that compared with no application of biomass carbon, Biomass carbon input has no significant effect on methane absorption / emission. However, methane emission changed significantly under different tillage and nitrogen application. Biomass carbon significantly increased methane emission by 30% and 46 under rotary tillage and no nitrogen application, respectively, while biomass was applied under tillage and nitrogen application. Carbon can reduce methane emission from paddy field by 9% and 10. Biomass carbon input can significantly reduce nitrogen oxide of main grain crops respectively. Global warming potential (GWPs) and greenhouse gas intensity (GHGI) reach 41% and 25% respectively. Different types of land use and cultivation, Biomass carbon application amount and biomass carbon type can significantly affect GWP and GWPI.The reasonable management of biomass input from main grain crops can contribute to the reduction of greenhouse gas emissions. It was suggested that biomass carbon should be combined with nitrogen application and tillage to apply biomass carbon with C / N ratio less than 10 t / h ~ (-2) and C / N ratio < 80 in order to reduce the emission of Greenhouse Effect.
【作者單位】： 濟(jì)南市環(huán)境研究院環(huán)境規(guī)劃研究所;江西省農(nóng)業(yè)科學(xué)院農(nóng)業(yè)工程研究所;中國(guó)科學(xué)院生態(tài)環(huán)境研究中心城市與區(qū)域生態(tài)國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金-青年基金項(xiàng)目(71003092) 中國(guó)科學(xué)院青年創(chuàng)新促進(jìn)會(huì)項(xiàng)目
【分類號(hào)】：S181

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