DOI: 10.1175/JCLI-D-11-00256.1
Scopus记录号: 2-s2.0-84859995515
论文题名: Simulating the biogeochemical and biogeophysical impacts of transient land cover change and wood harvest in the Community Climate System Model (CCSM4) from 1850 to 2100
作者: Lawrence P.J. ; Feddema J.J. ; Bonan G.B. ; Meehl G.A. ; O'Neill B.C. ; Oleson K.W. ; Levis S. ; Lawrence D.M. ; Kluzek E. ; Lindsay K. ; Thornton P.E.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 9 起始页码: 3071
结束页码: 3095
语种: 英语
Scopus关键词: Albedo
; Biosphere-atmosphere interaction
; Black carbon
; Climate forcings
; Climate impacts
; Community climate system model
; Community land models
; Coupled Model Intercomparison Project
; Ecosystem effects
; Global estimate
; Historical periods
; Land surface models
; Land-cover change
; Near-surface
; New parameters
; Plant functional type
; Short-wave radiation
; Surface albedo
; Terrestrial ecosystems
; Absorption cooling
; Biogeochemistry
; Climate models
; Deforestation
; Ecosystems
; Harvesting
; Landforms
; Reforestation
; Revegetation
; Solar radiation
; Vegetation
; Wood
; Climate change
; albedo
; biogeochemical cycle
; climate change
; climate effect
; climate forcing
; climate modeling
; concentration (composition)
; land cover
; land surface
; shortwave radiation
; terrestrial ecosystem
; Absorption
; Climates
; Cooling
; Deforestation
; Ecosystems
; Harvesting
; Mathematical Models
; Parameters
; Plants
; Reforestation
; Sun Light
; Wood
英文摘要: To assess the climate impacts of historical and projected land cover change in the Community Climate System Model, version 4 (CCSM4), new time series of transient Community Land Model, version 4 (CLM4) plant functional type (PFT) and wood harvest parameters have been developed. The new parameters capture the dynamics of the Coupled Model Intercomparison Project phase 5 (CMIP5) land cover change and wood harvest trajectories for the historical period from 1850 to 2005 and for the four representative concentration pathway (RCP) scenarios from 2006 to 2100. Analysis of the biogeochemical impacts of land cover change in CCSM4 reveals that the model produced a historical cumulative land use flux of 127.7 PgC from 1850 to 2005, which is in general agreement with other global estimates of 156 PgC for the same period. The biogeophysical impacts of the transient land cover change parameters were cooling of the near-surface atmosphere over land by -0.1°C, through increased surface albedo and reduced shortwave radiation absorption. When combined with other transient climate forcings, the higher albedo from land cover change was counteracted by decreasing snow albedo from black carbon deposition and high-latitude warming. The future CCSM4 RCP simulations showed that the CLM4 transient PFT parameters can be used to represent a wide range of land cover change scenarios. In the reforestation scenario of RCP 4.5, CCSM4 simulated a drawdown of 67.3 PgC from the atmosphere into the terrestrial ecosystem and product pools. By contrast the RCP 8.5 scenario with deforestation and high wood harvest resulted in the release of 30.3 PgC currently stored in the ecosystem. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52420
Appears in Collections: 气候变化事实与影响
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作者单位: National Center for Atmospheric Research, Boulder, CO, United States; Department of Geography, University of Kansas, Lawrence, KS, United States; Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
Recommended Citation:
Lawrence P.J.,Feddema J.J.,Bonan G.B.,et al. Simulating the biogeochemical and biogeophysical impacts of transient land cover change and wood harvest in the Community Climate System Model (CCSM4) from 1850 to 2100[J]. Journal of Climate,2012-01-01,25(9)