气候变化领域集成服务门户(CCPortal): Economically viable forest restoration in shifting cultivation landscapes

CCPortal

DOI	10.1088/1748-9326/ab7f0d
	Economically viable forest restoration in shifting cultivation landscapes
	Morton O.; Borah J.R.; Edwards D.P.
发表日期	2020
ISSN	17489318
卷号	15 期号:6
英文摘要	Shifting cultivation is a predominant land use across the tropics, feeding hundreds of millions of marginalised people, causing significant deforestation, and encompassing a combined area of land ten-fold greater than that used for oil palm and rubber. A key question is whether carbon-based payment for ecosystem services (PES) schemes can cost-effectively bring novel restoration and carbon-sensitive management practices to shifting agriculture. Using economic models that uniquely consider the substantial area of fallow land needed to support a single cultivated plot, we calculated the break-even carbon prices required for PES to match the opportunity cost of intervention in shifting agriculture. We do so in the North-east Indian biodiversity hotspot, where 35.4% of land is managed under shifting agriculture. We found net revenues of US$829.53-2581.95 per 30 ha when fallow area is included, which are an order of magnitude lower than previous estimates. Abandoning shifting agriculture entirely is highly feasible with break-even prices as low as US$1.33 t-1 CO2, but may conflict with food security. The oldest fallow plots could be fully restored for US$0.89 t-1 CO2 and the expansion of shifting agriculture into primary forest halted for US$0.51 t-1 CO2, whereas abandoning short-fallow systems would cost US$12.60 t-1 CO2. A precautionary reanalysis accounting for extreme economic uncertainty and leakage costs suggests that all interventions, excluding abandoning short-fallow systems, remain economically viable with prices less than US$4.00 t-1 CO2. Even with poorly formed voluntary carbon markets, shifting agriculture represents a critical opportunity for low-cost forest restoration whilst diversifying income streams of marginalised communities across a vast area. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	avoided deforestation; carbon-based payments for ecosystem services; opportunity cost; secondary forest restoration; shifting cultivation
语种	英语
scopus关键词	Agricultural robots; Biodiversity; Carbon; Carbon dioxide; Conservation; Cultivation; Deforestation; Earnings; Ecosystems; Food supply; Land use; Palm oil; Restoration; Break-even prices; Economic uncertainty; Economically viable; Ecosystem services; Forest restoration; Management practices; Opportunity costs; Shifting cultivations; Costs; biodiversity; carbon dioxide; cost analysis; cultivation; deforestation; ecosystem service; environmental economics; environmental restoration; feeding; food security; land use; management practice; Elaeis
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/154018
作者单位	Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S102TN, United Kingdom
推荐引用方式 GB/T 7714	Morton O.,Borah J.R.,Edwards D.P.. Economically viable forest restoration in shifting cultivation landscapes[J],2020,15(6).
APA	Morton O.,Borah J.R.,&Edwards D.P..(2020).Economically viable forest restoration in shifting cultivation landscapes.Environmental Research Letters,15(6).
MLA	Morton O.,et al."Economically viable forest restoration in shifting cultivation landscapes".Environmental Research Letters 15.6(2020).