气候变化领域集成服务门户(CCPortal): Foreign demand for agricultural commodities drives virtual carbon exports from Cambodia

CCPortal

DOI	10.1088/1748-9326/ab8157
	Foreign demand for agricultural commodities drives virtual carbon exports from Cambodia
	Johansson E.; Olin S.; Seaquist J.
发表日期	2020
ISSN	17489318
卷号	15 期号:6
英文摘要	Rapid deforestation is a major sustainability challenge, partly as the loss of carbon sinks exacerbates global climate change. In Cambodia, more than 13% of the total land area has been contracted out to foreign and domestic agribusinesses in the form of economic land concessions, causing rapid large-scale land use change and deforestation. Additionally, the distant drivers of local and global environmental change often remain invisible. Here, we identify hotspots of carbon loss between 1987-2017 using the dynamic global vegetation model LPJ-GUESS and by comparing past and present land use and land cover. We also link global consumption and production patterns to their environmental effects in Cambodia by mapping the countries to which land-use embedded carbon are exported. We find that natural forests have decreased from 54%-21% between 1987 and 2017, mainly for the expansion of farmland and orchards, translating into 300 million tons of carbon lost, with loss rates over twice as high within economic land concessions. China is the largest importer of embedded carbon, mainly for rubber and sugarcane from Chinese agribusinesses. Cambodian investors have also negatively affected carbon pools through export-oriented products like rubber. The combined understanding of environmental change and trade flows makes it possible to identify distant drivers of deforestation, which is important for crafting more environmentally and socially responsible policies on national and transnational scales. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	deforestation; economic land concessions; land grabbing; LPJ-GUESS; virtual carbon export
语种	英语
scopus关键词	Climate change; Deforestation; Farms; International trade; Land use; Rubber industry; Rubber products; Sustainable development; Agricultural commodities; Environmental change; Global climate changes; Global consumption; Global environmental change; Land use and land cover; Production patterns; Rapid deforestation; Carbon; agricultural land; agroindustry; deforestation; demand-side management; emissions trading; environmental economics; export; global climate; land use change; orchard; sustainability; Cambodia; China
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153982
作者单位	Lund University Centre for Sustainability Studies, Lund University, Lund, SE-221 00, Sweden; Department of Physical Geography and Ecosystam Science, Lund University, Lund, SE-221 00, Sweden
推荐引用方式 GB/T 7714	Johansson E.,Olin S.,Seaquist J.. Foreign demand for agricultural commodities drives virtual carbon exports from Cambodia[J],2020,15(6).
APA	Johansson E.,Olin S.,&Seaquist J..(2020).Foreign demand for agricultural commodities drives virtual carbon exports from Cambodia.Environmental Research Letters,15(6).
MLA	Johansson E.,et al."Foreign demand for agricultural commodities drives virtual carbon exports from Cambodia".Environmental Research Letters 15.6(2020).