globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12627
论文题名:
A large-scale field assessment of carbon stocks in human-modified tropical forests
作者: Berenguer E.; Ferreira J.; Gardner T.A.; Aragão L.E.O.C.; De Camargo P.B.; Cerri C.E.; Durigan M.; De Oliveira R.C.; Vieira I.C.G.; Barlow J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期:12
起始页码: 3713
结束页码: 3726
语种: 英语
英文关键词: Amazon ; Biomass ; Forest degradation ; Logging ; REDD+ ; Secondary forests ; Soil ; Vegetation ; Wildfires
Scopus关键词: soil ; biological model ; Brazil ; carbon cycle ; carbon sequestration ; chemistry ; computer simulation ; environmental protection ; fire ; forest ; forestry ; physiology ; procedures ; soil ; statistics and numerical data ; tropic climate ; Brazil ; Carbon Cycle ; Carbon Sequestration ; Computer Simulation ; Conservation of Natural Resources ; Fires ; Forestry ; Forests ; Models, Biological ; Soil ; Tropical Climate
英文摘要: Tropical rainforests store enormous amounts of carbon, the protection of which represents a vital component of efforts to mitigate global climate change. Currently, tropical forest conservation, science, policies, and climate mitigation actions focus predominantly on reducing carbon emissions from deforestation alone. However, every year vast areas of the humid tropics are disturbed by selective logging, understory fires, and habitat fragmentation. There is an urgent need to understand the effect of such disturbances on carbon stocks, and how stocks in disturbed forests compare to those found in undisturbed primary forests as well as in regenerating secondary forests. Here, we present the results of the largest field study to date on the impacts of human disturbances on above and belowground carbon stocks in tropical forests. Live vegetation, the largest carbon pool, was extremely sensitive to disturbance: forests that experienced both selective logging and understory fires stored, on average, 40% less aboveground carbon than undisturbed forests and were structurally similar to secondary forests. Edge effects also played an important role in explaining variability in aboveground carbon stocks of disturbed forests. Results indicate a potential rapid recovery of the dead wood and litter carbon pools, while soil stocks (0-30 cm) appeared to be resistant to the effects of logging and fire. Carbon loss and subsequent emissions due to human disturbances remain largely unaccounted for in greenhouse gas inventories, but by comparing our estimates of depleted carbon stocks in disturbed forests with Brazilian government assessments of the total forest area annually disturbed in the Amazon, we show that these emissions could represent up to 40% of the carbon loss from deforestation in the region. We conclude that conservation programs aiming to ensure the long-term permanence of forest carbon stocks, such as REDD+, will remain limited in their success unless they effectively avoid degradation as well as deforestation. © 2014 The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62091
Appears in Collections:影响、适应和脆弱性

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作者单位: Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom; Embrapa Amazônia Oriental, Trav. Dr. Enéas Pinheiro s/n, CP 48, Belém, Brazil; Department of Zoology, University of Cambridge, Downing Street, Cambridge, United Kingdom; International Institute for Sustainability, Rio de Janeiro, Brazil; Stockholm Environment Institute, Linnégatan 87D, Box 24218, Stockholm, Sweden; College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom; Tropical Ecosystems and Environmental Sciences Group (TREES), Remote Sensing Division, National Institute for Space Research - INPE, Sao Jose dos Campos, Av. dos Astronautas 1.758 Jd. Granja, Piracicaba, SP, Brazil; Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Av. Centenário 303, São Dimas, Piracicaba, SP, Brazil; Departamento de Ciência do Solo, Escola Superior de Agricultura Luiz de Queiroz-Esalq, Universidade de São Paulo, Av. Pádua Dias 11, Piracicaba, SP, Brazil; Núcleo do Médio Amazonas, Embrapa Amazônia Oriental, Rua Vera Paz, s/n, Bairro Salé, Santarém, PA, Brazil; MCT/Museu Paraense Emílio Goeldi, Av. Campus de Pesquisa, Perimetral, n1901, Terra Firme, Belém, PA, Brazil

Recommended Citation:
Berenguer E.,Ferreira J.,Gardner T.A.,et al. A large-scale field assessment of carbon stocks in human-modified tropical forests[J]. Global Change Biology,2014-01-01,20(12)
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