气候变化领域集成服务门户(CCPortal): Food production and climate protection-What abandoned lands can do to preserve natural forests

CCPortal

DOI	10.1016/j.gloenvcha.2013.07.004
	Food production and climate protection-What abandoned lands can do to preserve natural forests
	Knoke T.; Calvas B.; Moreno S.O.; Onyekwelu J.C.; Griess V.C.
发表日期	2013
ISSN	0959-3780
卷号	23 期号:5
英文摘要	Approaches to reconciling food production with climatic and environmental protection often require agricultural intensification. The production of more food per unit of agricultural land through "sustainable intensification" is intended to enable the protection of natural ecosystems elsewhere (land sparing). However, there are problems associated with agricultural intensification; such as soil erosion, eutrophication or pollution of water bodies with chemicals, landscape homogenization and loss of biodiversity; for which solutions have not yet been found. Reuse of abandoned agricultural lands - which are abundant throughout the world - to address the rising demand for food is a potentially important alternative, which up to now has been widely ignored. To test the power of this alternative, equilibrium economic land allocation to various land-use practices by risk-avoiding tropical farmers in Ecuador was simulated. The reestablishment of pastures on abandoned cattle lands lowered prices for pasture products, and also triggered conversion of existing pasture into cropland. The resulting land-use change increased total annual food production in a moderate scenario from the current level of 17.8-23.1 petacalories (1015 calories), which amounted to a production increase of 30%. At the same time, there was a 19% reduction in the amount of payments to farmers required to preserve tropical forests - one of the world's greatest terrestrial carbon stores. © 2013 Elsevier Ltd.
英文关键词	Climate protection; Ecuador; Environmental protection; Food production; Land use; Tropical farmers
学科领域	agricultural intensification; agricultural land; biodiversity; environmental protection; eutrophication; food production; land use; landscape; pasture; pollution; soil erosion; Ecuador; Bos
语种	英语
scopus关键词	agricultural intensification; agricultural land; biodiversity; environmental protection; eutrophication; food production; land use; landscape; pasture; pollution; soil erosion; Ecuador; Bos
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/117928
作者单位	Center of Life and Food Sciences Weihenstephan, Department of Ecology and Ecosystem Management, Technische Universität München, Hans-Carl-von-Carlowitz-Platz 2, 85354 Freising, Germany; Department of Economics, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja, Ecuador; Department of Forestry and Wood Technology, Federal University of Technology, P.M.B. 704, Akure, Nigeria
推荐引用方式 GB/T 7714	Knoke T.,Calvas B.,Moreno S.O.,et al. Food production and climate protection-What abandoned lands can do to preserve natural forests[J],2013,23(5).
APA	Knoke T.,Calvas B.,Moreno S.O.,Onyekwelu J.C.,&Griess V.C..(2013).Food production and climate protection-What abandoned lands can do to preserve natural forests.Global Environmental Change,23(5).
MLA	Knoke T.,et al."Food production and climate protection-What abandoned lands can do to preserve natural forests".Global Environmental Change 23.5(2013).