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不同物料来源生物质炭—有机肥堆肥对旱地红壤温室气体排放的影响 被引量:1

Effects of different materials biochar-manure compost on greenhouse gas emissions in upland red soil
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摘要 采用室内培养实验,在旱地红壤中添加生物质炭-有机肥堆肥,探究生物质炭-有机肥堆肥对旱地红壤温室气体(N2O、CH4、CO2)排放的影响。实验共设置5个处理,即CK(对照)、RM(水稻生物质炭-有机肥堆肥)、CM(玉米生物质炭-有机肥堆肥)、WM(小麦生物质炭-有机肥堆肥)、M(有机肥堆肥对照)。为尽量消除误差,本实验采用归一化处理,即实测值减去CK值后除以每种处理所添加的C、N量。结果表明:施用生物质炭-有机肥堆肥后各处理土壤N2O、CO2排放通量的变化趋势基本相同,即培养前期先上升,并出现峰值,而后缓慢下降最后趋于稳定;各处理对降低土壤N2O排放通量均有显著的效果,且CM处理最为显著;各处理对降低土壤CO2排放通量均有显著的效果,且CM、WM处理的效果最好。RM、WM、M处理均降低了土壤CH4累计排放通量,但CM处理却升高了。各处理均显著降低土壤增温潜势(GWP),且CM处理最为显著。因此,生物质炭-有机肥堆肥能有效降低旱地红壤温室气体的排放,对有机肥施于土壤后的温室气体减排可以起到一定作用。 The laboratory incubation experiment was carried out to explore the effects of different materials biochar-manure compost on greenhouse gas(N2O,CH4,CO2)emissions in upland red soil.Five treatments were set in the experiment,which included CK(control),RM(rice biomass carbon-organic compost),CM(corn biomass carbon-organic compost),WM(wheat biomass carbon-organic compost),and M(organic compost control).In order to eliminate errors as much as possible,the normalization process was adopted in this experiment,that is,the measured value minus CK value was divided by the amount of C and N added in each treatment.The results show that the N2O and CO2 emission fluxes of the soil in all treatments showed basically the same trend after the application of biochar-manure compost,i.e.,the fluxes of N2O and CO2 increased at the early stage of incubation,and peak appeared,then decreased slowly and finally stabilized.All treatments had significant effects on reducing soil N2O emission flux,and CM treatment has the most significant effect.All treatments had significant effects on reducing soil CO2 emission flux,and CM and WM treatment had the best effect.The cumulative CH4 emission flux of soil decreased in RM,WM and M treatment,which increased in CM treatment.All treatments significantly reduced global warming potential(GWP),and CM treatment was the most significant.Therefore,biochar-manure compost can effectively reduce greenhouse gas emissions in upland red soil and it can play a role in reducing greenhouse gas emissions after organic fertilizer is applied to soil.
作者 袁颖红 张哲 周际海 刘贵军 李丽 樊后保 黄欠如 成艳红 YUAN Yinghong;ZHANG Zhe;ZHOU Jihai;LIU Guijun;LI Li;FAN Houbao;HUANG Qianru;CHENG Yanhong(Jiangxi Key Laboratory of Degraded Ecosystem Restoration and Watershed Hydrology,Nanchang Institute of Technology,Nanchang 330099,China;Jiangxi Institute of Red Soil Research,Nanchang 331717,China)
出处 《南昌工程学院学报》 CAS 2019年第6期39-44,共6页 Journal of Nanchang Institute of Technology
基金 江西省教育厅科学技术研究项目(GJJ161100) 国家自然科学基金资助项目(31760167,41461050,41661065) 江西省2018年度研究生创新专项资金项目(YC2018-S420)
关键词 生物质炭 生物质炭-有机肥堆肥 旱地红壤 温室气体排放 biochar biochar-manure compost upland red soil greenhouse gas emissions
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