生物炭对农田N_(2)O排放的影响机制研究  

Research on the Effect Mechanism of Biochar on Farmland N_(2)O Emissions

作　　者：何甜甜 刘天 云菲 马彩娟[2] 符云鹏 HE Tiantian;LIU Tian;YUN Fei;MA Caijuan;FU Yunpeng(Key Laboratory of Tobacco Cultivation of China Tobacco Industry,College of Tobacco Science,Henan Agricultural University,Zhengzhou 450002,China;Xuchang Municipal Tobacco Company,Henan Xuchang 461000,China)

机构地区：[1]河南农业大学烟草学院,烟草行业烟草栽培重点实验室,郑州450002 [2]河南省烟草公司许昌市公司,河南许昌461000

出　　处：《中国农业科技导报》2021年第5期124-131,共8页Journal of Agricultural Science and Technology

基　　金：烟草行业烟草栽培重点实验室资助项目(中烟办[2014]334号)。

摘　　要：N_(2)O是影响全球气候变化的主要温室气体之一,对臭氧层的消耗起着催化作用。农田土壤作为温室气体第二大排放源,如何降低其N_(2)O的排放已成为不断探索的重大课题。生物炭是在缺氧条件下由含碳量丰富的生物质热解而成的一种高比表面积、多孔性材料,具有提高土壤肥力,促进作物生长等诸多优点,已成为研究热点。对农田N_(2)O排放的影响以及作用机制已有较多研究,但尚未形成统一定论。综述了N_(2)O排放机制,以及生物炭特性、生物炭与环境因子的相互作用对农田N_(2)O排放的影响,并对未来生物炭对温室气体排放的影响研究提出方向性建议。N_(2)O is one of the main greenhouse gases affecting global climate change,and also plays a catalytic role in the depletion of the ozone layer.Farmland soil is the second largest source of greenhouse gas emissions,and how to reduce its N_(2)O emissions has become a major subject.Biochar is a high specific surface area and porous material formed by pyrolysis of carbon-rich biomass under anoxic conditions.Biochar has many advantages such as improving soil fertility and promoting crop growth,and has become a current research subject.Its effect mechanisms on farmland N_(2)O emissions have been studied,but no unified conclusion has been formed.This paper reviewed the N_(2)O emission mechanism and the effects of biochar characteristics,the interaction of biochar and environmental factors on farmland N_(2)O emissions based on previous studies,and future more gave some research priority recommendations and utilization of biochar on greenhouse gas emissions.

关 键 词：生物炭 N_(2)O排放 机制 土壤 

分 类 号：S174.3[农业科学—农业基础科学]