DOI: 10.1111/gcb.13226
论文题名: Carbon dynamics of mature and regrowth tropical forests derived from a pantropical database (TropForC-db)
作者: Anderson-Teixeira K.J. ; Wang M.M.H. ; Mcgarvey J.C. ; Lebauer D.S.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2016
卷: 22, 期: 5 起始页码: 1690
结束页码: 1709
语种: 英语
英文关键词: Biomass
; Carbon cycle
; Net ecosystem exchange
; Productivity
; Regeneration
; Secondary
; Tropical forest
Scopus关键词: aboveground biomass
; broad-leaved forest
; carbon cycle
; database
; deciduous forest
; global change
; ground-based measurement
; net ecosystem exchange
; regrowth
; secondary production
; tropical forest
; carbon cycle
; factual database
; forest
; tropic climate
; Carbon Cycle
; Databases, Factual
; Forests
; Tropical Climate
英文摘要: Tropical forests play a critical role in the global carbon (C) cycle, storing ~45% of terrestrial C and constituting the largest component of the terrestrial C sink. Despite their central importance to the global C cycle, their ecosystem-level C cycles are not as well-characterized as those of extra-tropical forests, and knowledge gaps hamper efforts to quantify C budgets across the tropics and to model tropical forest-climate interactions. To advance understanding of C dynamics of pantropical forests, we compiled a new database, the Tropical Forest C database (TropForC-db), which contains data on ground-based measurements of ecosystem-level C stocks and annual fluxes along with disturbance history. This database currently contains 3568 records from 845 plots in 178 geographically distinct areas, making it the largest and most comprehensive database of its type. Using TropForC-db, we characterized C stocks and fluxes for young, intermediate-aged, and mature forests. Relative to existing C budgets of extra-tropical forests, mature tropical broadleaf evergreen forests had substantially higher gross primary productivity (GPP) and ecosystem respiration (Reco), their autotropic respiration (Ra) consumed a larger proportion (~67%) of GPP, and their woody stem growth (ANPPstem) represented a smaller proportion of net primary productivity (NPP, ~32%) or GPP (~9%). In regrowth stands, aboveground biomass increased rapidly during the first 20 years following stand-clearing disturbance, with slower accumulation following agriculture and in deciduous forests, and continued to accumulate at a slower pace in forests aged 20-100 years. Most other C stocks likewise increased with stand age, while potential to describe age trends in C fluxes was generally data-limited. We expect that TropForC-db will prove useful for model evaluation and for quantifying the contribution of forests to the global C cycle. The database version associated with this publication is archived in Dryad (DOI: 10.5061/dryad.t516f) and a dynamic version is maintained at https://github.com/forc-db. © 2016 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61421
Appears in Collections: 影响、适应和脆弱性
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作者单位: Conservation Ecology Center, Smithsonian Conservation Biology Institute, National Zoological Park, 1500 Remount Rd., Front Royal, VA, United States; Center for Tropical Forest Science-Forest Global Earth Observatory, Smithsonian Tropical Research Institute, Apartado,Panamá, Panama; Carl Woese Institute for Genomic Biology, University of Illinois, 1206 W Gregory Dr, Urbana, IL, United States
Recommended Citation:
Anderson-Teixeira K.J.,Wang M.M.H.,Mcgarvey J.C.,et al. Carbon dynamics of mature and regrowth tropical forests derived from a pantropical database (TropForC-db)[J]. Global Change Biology,2016-01-01,22(5)