DOI: 10.1016/j.foreco.2016.06.003
Scopus记录号: 2-s2.0-84975484294
论文题名: Recovery of biomass and merchantable timber volumes twenty years after conventional and reduced-impact logging in Amazonian Brazil
作者: Vidal E. ; West T.A.P. ; Putz F.E.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 376 起始页码: 1
结束页码: 8
语种: 英语
英文关键词: Commercial tree species
; Cutting cycles
; Drought
; Forest growth
; REDD+
; Sustainable forest management
; Tropical forestry
Scopus关键词: Biomass
; Carbon
; Drought
; Forestry
; Recovery
; Timber
; Commercial tree species
; Cutting cycles
; Forest growth
; REDD
; Sustainable forest management
; Logging (forestry)
; aboveground biomass
; commercial species
; drought stress
; estimation method
; forest inventory
; forest management
; forestry production
; growth rate
; mortality
; selective logging
; set-aside
; sustainability
; sustainable development
; tropical forest
; Amazonia
; Brazil
; Para [Brazil]
; Paragominas
英文摘要: Concerns about the sustainability of tropical forestry motivated this study on post-logging timber and carbon dynamics over a 20-year period in Paragominas, Pará, Brazil. Previously unlogged forest was subjected to conventional logging (CL), reduced-impact logging (RIL), or was set aside as an unlogged control. All trees ≥25 cm DBH and all trees of commercial species ≥10 cm DBH were monitored in a 24.5 ha plot in each treatment, with a 5.25 ha subplot in each for monitoring all trees ≥10 cm DBH. Above-ground biomass and bole volumes of merchantable species were tracked based on 10 inventories made between 1993 and 2014. Pre-logging biomass and bole volumes of commercial species were estimated as 237, 231, and 211 Mg ha-1, and 78, 80, and 70 m3 ha-1, in the RIL, CL, and unlogged plots, respectively. One year after logging, biomass was reduced 14% by RIL and 24% by CL with corresponding merchantable species volume reductions of 21% and 31%. By 2014, biomass and bole volumes of commercial species had recovered 95% and 98% of their pre-logging stocks in the RIL plot but only 76% and 72% in the CL plot, respectively; timber volumes from large trees (≥50 cm DBH) were only recovered to 81% in the RIL plot and to 53% in the CL plot. Over the first twenty years after logging, average volume increments from commercial species were substantially higher in the RIL plot (0.72 m3 ha-1 year-1) than in the CL plot (0.08 m3 ha-1 year-1). Recovery of both biomass and timber volumes were temporarily reversed between 2009 and 2014 due to a 4-fold increase in annual mortality rates in the RIL plot and a 5.5-fold increase in the CL plot (as well as a 3-fold increase in the control plot), all presumably related to the extreme drought of 2010. Our findings support the claim that use of RIL techniques accelerates rates of biomass and timber stock recovery after selective logging. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64800
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest Sciences, Luiz de Queiroz College of Agriculture, University of São Paulo, Av. Pádua Dias, 11, Piracicaba, São Paulo, Brazil; School of Natural Resources and Environment, University of Florida, Gainesville, FL, United States; Department of Biology, University of Florida, Gainesville, FL, United States
Recommended Citation:
Vidal E.,West T.A.P.,Putz F.E.. Recovery of biomass and merchantable timber volumes twenty years after conventional and reduced-impact logging in Amazonian Brazil[J]. Forest Ecology and Management,2016-01-01,376