Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aab0b0 |
Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program | |
Grewer, Uwe1; Nash, Julie2,3,4; Gurwick, Noel5; Bockel, Louis1; Galford, Gillian2,3; Richards, Meryl2,3,4; Costa Junior, Ciniro6; White, Julianna2,3,4; Pirolli, Gillian3; Wollenberg, Eva2,3,4 | |
2018-04-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy; USA; Brazil |
英文摘要 | This article analyses the greenhouse gas (GHG) impact potential of improved management practices and technologies for smallholder agriculture promoted under a global food security development program. Under 'business-as-usual' development, global studies on the future of agriculture to 2050 project considerable increases in total food production and cultivated area. Conventional cropland intensification and conversion of natural vegetation typically result in increased GHG emissions and loss of carbon stocks. There is a strong need to understand the potential greenhouse gas impacts of agricultural development programs intended to achieve large-scale change, and to identify pathways of smallholder agricultural development that can achieve food security and agricultural production growth without drastic increases in GHG emissions. In an analysis of 134 crop and livestock production systems in 15 countries with reported impacts on 4.8 million ha, improved management practices and technologies by smallholder farmers significantly reduce GHG emission intensity of agricultural production, increase yields and reduce post-harvest losses, while either decreasing or only moderately increasing net GHG emissions per area. Investments in both production and post-harvest stages meaningfully reduced GHG emission intensity, contributing to low emission development. We present average impacts on net GHG emissions per hectare and GHG emission intensity, while not providing detailed statistics of GHG impacts at scale that are associated to additional uncertainties. While reported improvements in smallholder systems effectively reduce future GHG emissions compared to business-as-usual development, these contributions are insufficient to significantly reduce net GHG emission in agriculture beyond current levels, particularly if future agricultural production grows at projected rates. |
英文关键词 | low emission agriculture climate change mitigation greenhouse gases emission intensity smallholder agriculture |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427976900001 |
WOS关键词 | EMISSIONS ; AGRICULTURE ; BIOMASS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33216 |
专题 | 气候变化 |
作者单位 | 1.FAO, Agr Dev Econ Div, Viale Terme Caracalla, I-00153 Rome, Italy; 2.Univ Vermont, Gund Inst Environm, 617 Main St, Burlington, VT USA; 3.Univ Vermont, Rubenstein Sch Environm & Nat Resources, 617 Main St, Burlington, VT USA; 4.CGIAR Res Program Climate Change Agr & Food Secur, 617 Main St, Burlington, VT USA; 5.US Agcy Int Dev, Off Global Climate Change, 1300 Penn Ave NW, Washington, DC 20523 USA; 6.Inst Forestry & Agr Management & Certificat, Rd Chico Mendes 185, BR-13426420 Piracicaba, Brazil |
推荐引用方式 GB/T 7714 | Grewer, Uwe,Nash, Julie,Gurwick, Noel,et al. Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(4). |
APA | Grewer, Uwe.,Nash, Julie.,Gurwick, Noel.,Bockel, Louis.,Galford, Gillian.,...&Wollenberg, Eva.(2018).Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program.ENVIRONMENTAL RESEARCH LETTERS,13(4). |
MLA | Grewer, Uwe,et al."Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program".ENVIRONMENTAL RESEARCH LETTERS 13.4(2018). |
条目包含的文件 | 条目无相关文件。 |
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