气候变化领域集成服务门户(CCPortal): Carbon emissions and potential emissions reductions from low-intensity selective logging in southwestern Amazonia

CCPortal

DOI	10.1016/j.foreco.2019.02.037
	Carbon emissions and potential emissions reductions from low-intensity selective logging in southwestern Amazonia
	Goodman R.C.; Harman Aramburu M.; Gopalakrishna T.; Putz F.E.; Gutiérrez N.; Mena Alvarez J.L.; Aguilar-Amuchastegui N.; Ellis P.W.
发表日期	2019
ISSN	0378-1127
起始页码	18
结束页码	27
卷号	439
英文摘要	Forests in southwestern Amazonia are increasingly being converted for agriculture, mining, and infrastructure development; subjected to low-intensity selective logging of high value timber species; and designated as conservation areas and indigenous reserves. To understand the impacts of forestry in this region, we evaluated carbon emissions from felling, skidding, and hauling in five FSC-certified concessions where workers were trained in reduced-impact logging (RIL) and in four non-certified concessions where workers were not trained in RIL in Madre de Dios, Peru. Emissions estimates did not differ by certification status, so we established a single baseline for selective logging emissions. Total carbon emissions from selective logging were low per hectare (4.9–11.6 Mg ha −1 ) due to low logging intensities (2.9–8.1 m 3 ha −1 ). Despite the unique architecture of trees in the southwestern Amazon (short stems and large crowns), emissions per volume and per ton carbon in the extracted timber were also relatively low (1.55 Mg m −3 and 4.04 Mg Mg −1 , respectively). Only emissions per area scaled with logging intensity. Emissions were dominated by the felled tree itself (in extracted logs and residuals), whereas hauling infrastructure (roads and log landings) contributed comparatively little. Unintended emissions could be reduced by 46% if concessions were able to achieve the best demonstrated outcomes in each source category and by 54% with additional improvements. Less than 5% of timber was lost due to hollow sections. We determined that it would be overly cautious to avoid cutting all trees with any hollow sections, and it would actually increase emissions per unit timber extracted if no other trees were cut in place of the hollow trees. At the tree level, certified concessions had higher log recovery and damaged fewer commercial species during felling, which should increase their current and future timber yields. It is important to both understand and improve carbon dynamics in managed forests in this emerging hotspot for greenhouse gas emissions from deforestation and forest degradation. © 2019 Elsevier B.V.
英文关键词	Carbon impact factor (CIF); Hollow trees; Reduced-impact logging; RIL-C; Tropical silviculture
语种	英语
scopus关键词	Carbon; Conservation; Deforestation; Gas emissions; Greenhouse gases; Timber; Conservation areas; Emissions reduction; Hollow trees; Impact factor; Infrastructure development; Logging intensities; Reduced-impact logging; Tropical silvicultures; Logging (forestry); carbon emission; commercial species; deforestation; emission control; greenhouse gas; selective logging; silviculture; timber; tree; Carbon; Conservation; Deforestation; Greenhouse Gases; Intensity; Selective Cutting; Trees; Amazonia; Madre de Dios; Peru
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156097
作者单位	Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Skogsmarksgränd, Umeå, 901 83, Sweden; World Wildlife Fund–Peru, Trinidad Morán 853, Lima, 14, Peru; The Nature Conservancy, 4245 Fairfax Avenue, Suite 100, Arlington, VA 22203-1606, United States; Department of Biology, University of Florida, Gainesville, FL 32611-8526, United States; World Wildlife Fund–US, 1250 24th Street, N.W. Washington, DC 20037-1193, United States
推荐引用方式 GB/T 7714	Goodman R.C.,Harman Aramburu M.,Gopalakrishna T.,et al. Carbon emissions and potential emissions reductions from low-intensity selective logging in southwestern Amazonia[J],2019,439.
APA	Goodman R.C..,Harman Aramburu M..,Gopalakrishna T..,Putz F.E..,Gutiérrez N..,...&Ellis P.W..(2019).Carbon emissions and potential emissions reductions from low-intensity selective logging in southwestern Amazonia.Forest Ecology and Management,439.
MLA	Goodman R.C.,et al."Carbon emissions and potential emissions reductions from low-intensity selective logging in southwestern Amazonia".Forest Ecology and Management 439(2019).