DOI: 10.1111/gcb.12798
论文题名: Carbon stock loss from deforestation through 2013 in Brazilian Amazonia
作者: Nogueira E.M. ; Yanai A.M. ; Fonseca F.O.R. ; Fearnside P.M.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 3 起始页码: 1271
结束页码: 1292
语种: 英语
英文关键词: REDD
; Amazon forest
; Global warming
; Greenhouse gases
; Tropical forest
Scopus关键词: carbon emission
; deforestation
; environmental degradation
; global warming
; greenhouse gas
; tropical forest
; vegetation type
; Amazonia
; Brazil
; air pollutant
; gas
; air pollutant
; analysis
; biomass
; Brazil
; carbon sequestration
; ecosystem
; environmental protection
; forest
; gas
; greenhouse effect
; season
; Air Pollutants
; Biomass
; Brazil
; Carbon Sequestration
; Conservation of Natural Resources
; Ecosystem
; Forests
; Gases
; Greenhouse Effect
; Seasons
英文摘要: The largest carbon stock in tropical vegetation is in Brazilian Amazonia. In this ~5 million km2 area, over 750 000 km2 of forest and ~240 000 km2 of nonforest vegetation types had been cleared through 2013. We estimate current carbon stocks and cumulative gross carbon loss from clearing of premodern vegetation in Brazil's 'Legal Amazonia' and 'Amazonia biome' regions. Biomass of 'premodern' vegetation (prior to major increases in disturbance beginning in the 1970s) was estimated by matching vegetation classes mapped at a scale of 1 : 250 000 and 29 biomass means from 41 published studies for vegetation types classified as forest (2317 1-ha plots) and as either nonforest or contact zones (1830 plots and subplots of varied size). Total biomass (above and below-ground, dry weight) underwent a gross reduction of 18.3% in Legal Amazonia (13.1 Pg C) and 16.7% in the Amazonia biome (11.2 Pg C) through 2013, excluding carbon loss from the effects of fragmentation, selective logging, fires, mortality induced by recent droughts and clearing of forest regrowth. In spite of the loss of carbon from clearing, large amounts of carbon were stored in stands of remaining vegetation in 2013, equivalent to 149 Mg C ha-1 when weighted by the total area covered by each vegetation type in Legal Amazonia. Native vegetation in Legal Amazonia in 2013 originally contained 58.6 Pg C, while that in the Amazonia biome contained 56 Pg C. Emissions per unit area from clearing could potentially be larger in the future because previously cleared areas were mainly covered by vegetation with lower mean biomass than the remaining vegetation. Estimates of original biomass are essential for estimating losses to forest degradation. This study offers estimates of cumulative biomass loss, as well as estimates of premodern carbon stocks that have not been represented in recent estimates of deforestation impacts. © 2014 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61663
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Environmental Dynamics, National Institute for Research in Amazonia (INPA), Av. André Araújo no 2936, Manaus, Amazonas, Brazil
Recommended Citation:
Nogueira E.M.,Yanai A.M.,Fonseca F.O.R.,et al. Carbon stock loss from deforestation through 2013 in Brazilian Amazonia[J]. Global Change Biology,2015-01-01,21(3)