Role of organic amendment application on greenhouse gas emission from soil

被引:380
作者
Thangarajan, Ramya [1 ,2 ]
Bolan, Nanthi S. [1 ,2 ]
Tian, Guanglong [3 ]
Naidu, Ravi [1 ,2 ]
Kunhikrishnan, Anitha [4 ]
机构
[1] Univ S Australia, Ctr Environm Risk Assessment & Remediat, Mawson Lakes, SA 5095, Australia
[2] Cooperat Res Ctr Contaminat Assessment & Remediat, Adelaide, SA 5095, Australia
[3] Metropolitan Water Reclamat Dist Greater Chicago, Monitoring & Res Dep, Environm Monitoring & Res Div, Cicero, IL 60804 USA
[4] Natl Acad Agr Sci, Chem Safety Div, Dept Agrofood Safety, Suwon, Gyeonggi Do, South Korea
关键词
Greenhouse gases (GHGs); Organic amendments; Biosolids; Compost; Manure; Mitigation; Plant residues; NITROUS-OXIDE EMISSIONS; CARBON-DIOXIDE EMISSIONS; MUNICIPAL SOLID-WASTE; LONG-TERM APPLICATION; METHANE EMISSIONS; MICROBIAL BIOMASS; NITRIFICATION INHIBITOR; N2O EMISSIONS; NITRIC-OXIDE; CHEMICAL-PROPERTIES;
D O I
10.1016/j.scitotenv.2013.01.031
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Globally, substantial quantities of organic amendments (OAs) such as plant residues (3.8 x 10(9) Mg/yr), biosolids (10 x 10(7) Mg/yr), and animal manures (7 x 10(9) Mg/yr) are produced. Recycling these OAs in agriculture possesses several advantages such as improving plant growth, yield, soil carbon content, and microbial biomass and activity. Nevertheless, OA applications hold some disadvantages such as nutrient eutrophication and greenhouse gas (GHG) emission. Agriculture sector plays a vital role in GHG emission (carbon dioxide-CO2, methane-CH4, and nitrous oxide-N2O). Though CH4 and N2O are emitted in less quantity than CO2, they are 21 and 310 times more powerful in global warming potential, respectively. Although there have been reviews on the role of mineral fertilizer application on GHG emission, there has been no comprehensive review on the effect of OA application on GHG emission in agricultural soils. The review starts with the quantification of various OAs used in agriculture that include manures, biosolids, and crop residues along with their role in improving soil health. Then, it discusses four major OA induced-GHG emission processes (i.e., priming effect methanogenesis, nitrification, and denitrification) by highlighting the impact of OA application on GHG emission from soil. For example, globally 10 x 10(7) Mg biosolids are produced annually which can result in the potential emission of 530 Gg of CH4 and 60 Gg of N2O. The article then aims to highlight the soil, climatic, and OA factors affecting OA induced-GHG emission and the management practices to mitigate the emission. This review emphasizes the future research needs in relation to nitrogen and carbon dynamics in soil to broaden the use of OAs in agriculture to maintain soil health with minimum impact on GHG emission from agriculture. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:72 / 96
页数:25
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