Greenhouse gas emission from rice- and wheat-growing areas in India: spatial analysis and upscaling

被引：28

作者：

Bhatia, Arti ^{[1
]}

Aggarwal, P. K. ^{[2
]}

Jain, Niveta ^{[1
]}

Pathak, H. ^{[1
]}

机构：

[1] Indian Agr Res Inst, Div Environm Sci, New Delhi 110012, India

[2] Int Water Management Inst, CGIAR Res Program Climate Change, India Off, New Delhi, India

来源：

GREENHOUSE GASES-SCIENCE AND TECHNOLOGY | 2012年 / 2卷 / 02期

关键词：

carbon dioxide; global warming potential; InfoCrop model; methane; nitrous oxide; DYNAMIC SIMULATION-MODEL; NITROUS-OXIDE EMISSIONS; METHANE EMISSIONS; TROPICAL ENVIRONMENTS; GANGETIC PLAINS; PADDY FIELDS; CROP YIELDS; DNDC MODEL; INFOCROP; SYSTEM;

D O I：

10.1002/ghg.1272

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The intensified rice and wheat cropping systems consume most of the fertilizer and irrigation water in India and are major sources of greenhouse gas (GHG) emissions. The InfoCrop simulation model was evaluated to calculate methane (CH4), nitrous oxide (N2O), and carbon dioxide (CO2) emissions from soils under rice and wheat. Indian rice fields covering 42.21 million ha (Mha) emitted 2.07, 0.02, and 72.9 Tg of CH4-C, N2O-N and CO2-C, respectively, with a global warming potential (GWP) of 88.5 Tg CO2-C eq. Annual GHG emission from 28.08 Mha of wheat-growing areas was 0.017 and 43.2 Tg of N2O-N and CO2-C, respectively, with a GWP of 44.6 Tg CO2-C eq. Intermittent irrigation in rice reduced methane emissions by 40%. However, application of farmyard manure in rice increased the GWP by 41%. This study suggests that the InfoCrop model could be applied for simulating the impacts of crop management and soil and climatic parameters on GHG emission from agricultural areas. (c) 2012 Society of Chemical Industry and John Wiley & Sons, Ltd

引用

页码：115 / 125

页数：11

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