气候变化领域集成服务门户(CCPortal): When enough should be enough: Improving the use of current agricultural lands could meet production demands and spare natural habitats in Brazil

CCPortal

DOI	10.1016/j.gloenvcha.2014.06.001
	When enough should be enough: Improving the use of current agricultural lands could meet production demands and spare natural habitats in Brazil
	Strassburg B.B.N.; Latawiec A.E.; Barioni L.G.; Nobre C.A.; da Silva V.P.; Valentim J.F.; Vianna M.; Assad E.D.
发表日期	2014
ISSN	0959-3780
卷号	28 期号:1
英文摘要	Providing food and other products to a growing human population while safeguarding natural ecosystems and the provision of their services is a significant scientific, social and political challenge. With food demand likely to double over the next four decades, anthropization is already driving climate change and is the principal force behind species extinction, among other environmental impacts. The sustainable intensification of production on current agricultural lands has been suggested as a key solution to the competition for land between agriculture and natural ecosystems. However, few investigations have shown the extent to which these lands can meet projected demands while considering biophysical constraints. Here we investigate the improved use of existing agricultural lands and present insights into avoiding future competition for land. We focus on Brazil, a country projected to experience the largest increase in agricultural production over the next four decades and the richest nation in terrestrial carbon and biodiversity. Using various models and climatic datasets, we produced the first estimate of the carrying capacity of Brazil's 115 million hectares of cultivated pasturelands. We then investigated if the improved use of cultivated pasturelands would free enough land for the expansion of meat, crops, wood and biofuel, respecting biophysical constraints (i.e., terrain, climate) and including climate change impacts. We found that the current productivity of Brazilian cultivated pasturelands is 32-34% of its potential and that increasing productivity to 49-52% of the potential would suffice to meet demands for meat, crops, wood products and biofuels until at least 2040, without further conversion of natural ecosystems. As a result up to 14.3Gt CO2 Eq could be mitigated. The fact that the country poised to undergo the largest expansion of agricultural production over the coming decades can do so without further conversion of natural habitats provokes the question whether the same can be true in other regional contexts and, ultimately, at the global scale. © 2014 The Authors.
英文关键词	Agriculture; Increasing demand; Land sparing; Pasturelands; Sustainable intensification
学科领域	agricultural land; agricultural production; alternative agriculture; carrying capacity; climate change; habitat management; land surface; productivity; agricultural intensification; biodiversity; carbon sequestration; climate modeling; data set; demand analysis; extinction; food production; future prospect; human activity; pasture; sustainability; Brazil
语种	英语
scopus关键词	agricultural land; agricultural production; alternative agriculture; carrying capacity; climate change; habitat management; land surface; productivity; agricultural intensification; biodiversity; carbon sequestration; climate modeling; data set; demand analysis; extinction; food production; future prospect; human activity; pasture; sustainability; Brazil
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/117750
作者单位	International Institute for Sustainability, Estrada Dona Castorina, 124, Rio de Janeiro, 22460-320, Brazil; Department of Geography and the Environment, Pontificia Universidade Catolica, Rio de Janeiro, 22453-900, Brazil; Opole University of Technology, Department of Production Engineering and Logistics, Luboszycka 5, Opole, 45-036, Poland; School of Environmental Sciences, University of East Anglia, Norwich, Norfolk, NR4 7TJ, United Kingdom; Embrapa Informática Agropecuária, Campinas, SP, 13083-886, Brazil; National Institute for Space Research, São José dos Campos, SP12227-010, Brazil; Embrapa Florestas, Colombo, PR, 83411-000, Brazil; Embrapa Acre, Rio Branco, AC, 69908-970, Brazil; Mossavar-Rahmani Center for Business and Government, Harvard Kennedy School, 79 John F. Kennedy Street, Mailbox 81, Cambridge, MA 02138, United States
推荐引用方式 GB/T 7714	Strassburg B.B.N.,Latawiec A.E.,Barioni L.G.,et al. When enough should be enough: Improving the use of current agricultural lands could meet production demands and spare natural habitats in Brazil[J],2014,28(1).
APA	Strassburg B.B.N..,Latawiec A.E..,Barioni L.G..,Nobre C.A..,da Silva V.P..,...&Assad E.D..(2014).When enough should be enough: Improving the use of current agricultural lands could meet production demands and spare natural habitats in Brazil.Global Environmental Change,28(1).
MLA	Strassburg B.B.N.,et al."When enough should be enough: Improving the use of current agricultural lands could meet production demands and spare natural habitats in Brazil".Global Environmental Change 28.1(2014).