Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa5986 |
Forest carbon emissions from cropland expansion in the Brazilian Cerrado biome | |
Noojipady, Praveen1,2; Morton, Douglas C.1; Macedo, Marcia N.3,4; Victoria, Daniel C.5; Huang, Chengquan2; Gibbs, Holly K.6; Bolfe, Edson L.7 | |
2017-02-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Brazil |
英文摘要 | Land use, land use change, and forestry accounted for two-thirds of Brazil's greenhouse gas emissions profile in 2005. Amazon deforestation has declined by more than 80% over the past decade, yet Brazil's forests extend beyond the Amazon biome. Rapid expansion of cropland in the neighboring Cerrado biome has the potential to undermine climate mitigation efforts if emissions from dry forest and woodland conversion negate some of the benefits of avoided Amazon deforestation. Here, we used satellite data on cropland expansion, forest cover, and vegetation carbon stocks to estimate annual gross forest carbon emissions from cropland expansion in the Cerrado biome. Nearly half of the Cerrado met Brazil's definition of forest cover in 2000 (>= 0.5 ha with >= 10% canopy cover). In areas of established crop production, conversion of both forest and non-forest Cerrado formations for cropland declined during 2003-2013. However, forest carbon emissions from cropland expansion increased over the past decade in Matopiba, a new frontier of agricultural production that includes portions of Maranhao, Tocantins, Piau, and Bahia states. Gross carbon emissions from cropland expansion in the Cerrado averaged 16.28 Tg C yr(-1) between 2003 and 2013, with forest-to-cropland conversion accounting for 29% of emissions. The fraction of forest carbon emissions from Matopiba was much higher; between 2010-2013, large-scale cropland conversion in Matopiba contributed 45% of total Cerrado forest carbon emissions. Carbon emissions from Cerrado-to-cropland transitions offset 5%-7% of the avoided emissions from reduced Amazon deforestation rates during 2011-2013. Comprehensive national estimates of forest carbon fluxes, including all biomes, are critical to detect cross-biome leakage within countries and achieve climate mitigation targets to reduce emissions from land use, land use change, and forestry. |
英文关键词 | Cerrado Matopiba carbon emissions land-use deforestation agriculture expansion remote sensing |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000410375900001 |
WOS关键词 | GREENHOUSE-GAS EMISSIONS ; LAND-USE CHANGE ; SOUTHERN AMAZON ; DEFORESTATION ; DROUGHT ; FIRE ; INTENSIFICATION ; CONSERVATION ; AGRICULTURE ; DEGRADATION |
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/34301 |
专题 | 气候变化 |
作者单位 | 1.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA; 2.Univ Maryland, College Pk, MD 20742 USA; 3.Woods Hole Res Ctr, Falmouth, MA 02540 USA; 4.Amazon Environm Res Insitute IPAM, BR-71503505 Brasilia, DF, Brazil; 5.Brazilian Agr Res Corp Embrapa Agr Informat, BR-13083886 Campinas, SP, Brazil; 6.Univ Wisconsin, Madison, WI 53706 USA; 7.Brazilian Agr Res Corp Embrapa, Secretariat Intelligence & Macrostrategy, BR-70770901 Brasilia, DF, Brazil |
推荐引用方式 GB/T 7714 | Noojipady, Praveen,Morton, Douglas C.,Macedo, Marcia N.,et al. Forest carbon emissions from cropland expansion in the Brazilian Cerrado biome[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(2). |
APA | Noojipady, Praveen.,Morton, Douglas C..,Macedo, Marcia N..,Victoria, Daniel C..,Huang, Chengquan.,...&Bolfe, Edson L..(2017).Forest carbon emissions from cropland expansion in the Brazilian Cerrado biome.ENVIRONMENTAL RESEARCH LETTERS,12(2). |
MLA | Noojipady, Praveen,et al."Forest carbon emissions from cropland expansion in the Brazilian Cerrado biome".ENVIRONMENTAL RESEARCH LETTERS 12.2(2017). |
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