气候变化领域集成服务门户(CCPortal): Estimating the world's potentially available cropland using a bottom-up approach

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DOI	10.1016/j.gloenvcha.2013.05.005
	Estimating the world's potentially available cropland using a bottom-up approach
	Lambin E.F.; Gibbs H.K.; Ferreira L.; Grau R.; Mayaux P.; Meyfroidt P.; Morton D.C.; Rudel T.K.; Gasparri I.; Munger J.
发表日期	2013
ISSN	0959-3780
卷号	23 期号:5
英文摘要	Previous estimates of the land area available for future cropland expansion relied on global-scale climate, soil and terrain data. They did not include a range of constraints and tradeoffs associated with land conversion. As a result, estimates of the global land reserve have been high. Here we adjust these estimates for the aforementioned constraints and tradeoffs. We define potentially available cropland as the moderately to highly productive land that could be used in the coming years for rainfed farming, with low to moderate capital investments, and that is not under intact mature forests, legally protected, or already intensively managed. This productive land is underutilized rather than unused as it has ecological or social functions. We also define potentially available cropland that accounts for trade-offs between gains in agricultural production and losses in ecosystem and social services from intensified agriculture, to include only the potentially available cropland that would entail low ecological and social costs with conversion to cropland. In contrast to previous studies, we adopt a "bottom-up" approach by analyzing detailed, fine scale observations with expert knowledge for six countries or regions that are often assumed to include most of potentially available cropland. We conclude first that there is substantially less potential additional cropland than is generally assumed once constraints and trade offs are taken into account, and secondly that converting land is always associated with significant social and ecological costs. Future expansion of agricultural production will encounter a complex landscape of competing demands and tradeoffs. © 2013 Elsevier Ltd.
英文关键词	Agriculture; Agro-ecological zone; Degraded lands; Food security; Land change; Land reserve; Land use
学科领域	agricultural land; agricultural production; bottom-up approach; ecosystem service; food security; investment; land degradation; landscape; terrain
语种	英语
scopus关键词	agricultural land; agricultural production; bottom-up approach; ecosystem service; food security; investment; land degradation; landscape; terrain
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/117902
作者单位	Georges Lemaître Centre for Earth and Climate Research, Earth and Life Institute, Université catholique de Louvain, Place Louis Pasteur 3, 1348 Louvain-la-Neuve, Belgium; School of Earth Sciences and Woods Institute, Stanford University, 473 Via Ortega, Stanford, CA 94305, United States; Department of Geography and Nelson Institute for Environmental Studies, University of Wisconsin-Madison, 1710 University Avenue, Madison, WI 73726, United States; Image Processing and GIS Lab, Federal University of Goiás, Cx. Postal 131, 74001-970, Goiânia, GO, Brazil; Instituto de Ecología Regional, Universidad Nacional de Tucumán-CONICET, Casilla de Correo 34, 4107, Yerba Buena, Tucumán, Argentina; Institute for Environment and Sustainability, Joint Research Centre, European Commission, TP 440, 2749 via E. Fermi, 21027 Ispra (VA), Italy; F.R.S-FNRS, Belgium; NASA Goddard Space Flight Center, Code 618, Greenbelt, MD 20771, United States; Departments of Human Ecology and Sociology, Rutgers University, 55 Dudley Road, New ...
推荐引用方式 GB/T 7714	Lambin E.F.,Gibbs H.K.,Ferreira L.,et al. Estimating the world's potentially available cropland using a bottom-up approach[J],2013,23(5).
APA	Lambin E.F..,Gibbs H.K..,Ferreira L..,Grau R..,Mayaux P..,...&Munger J..(2013).Estimating the world's potentially available cropland using a bottom-up approach.Global Environmental Change,23(5).
MLA	Lambin E.F.,et al."Estimating the world's potentially available cropland using a bottom-up approach".Global Environmental Change 23.5(2013).