DOI: 10.1002/2015GL066835
论文题名: An analytical model for relating global terrestrial carbon assimilation with climate and surface conditions using a rate limitation framework
作者: Yang Y. ; Donohue R.J. ; McVicar T.R. ; Roderick M.L.
刊名: Geophysical Research Letters
ISSN: 0094-8384
EISSN: 1944-8115
出版年: 2015
卷: 42, 期: 22 起始页码: 9825
结束页码: 9835
语种: 英语
英文关键词: analytical model
; Budyko
; gross primary productivity
; rate limitation framework
Scopus关键词: Climate models
; Mean square error
; Photosynthesis
; Phytoplankton
; Budyko
; Carbon assimilation
; Environmental variables
; Gross primary productivity
; Model trees
; Root mean square errors
; Surface conditions
; Water energy
; Analytical models
; analytical method
; carbon flux
; carbon sequestration
; climate conditions
; energy budget
; ensemble forecasting
; flux measurement
; global climate
; limiting factor
; model test
; primary production
; terrestrial environment
; water footprint
英文摘要: We develop an analytical model for estimating mean annual terrestrial gross primary productivity (GPP) based on a rate limitation framework. Actual GPP (climatological mean from 1982 to 2010) is calculated as a function of the balance between two GPP potentials defined by the climate (i.e., precipitation and solar radiation) and a third parameter that encodes other environmental variables and modifies the GPP-climate relationship. The model was tested using observed GPP from 94 flux sites and modeled GPP (using the model tree ensemble approach) at 48,654 (0.5°) grid cells globally. Results show that the model could account for the spatial GPP patterns, with a root-mean-square error of 0.70 and 0.65 g C m-2 d-1 and R2 of 0.79 and 0.92 for the flux site and grid cell scales, respectively. This analytical GPP model shares a similar form with the Budyko hydroclimatological model, which opens the possibility of a general analytical framework to analyze the linked carbon-water-energy cycles. Key Points A general Budyko-like rate limitation framework for modeling GPP is developed An analytical solution to the rate limitation framework of GPP is derived Globally, the model performs well at both flux site and grid cell scales. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956907120&doi=10.1002%2f2015GL066835&partnerID=40&md5=8e6e09ade3947eebe4c137b9ab352444
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8000
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: CSIRO Land and Water, Canberra, ACT, Australia
Recommended Citation:
Yang Y.,Donohue R.J.,McVicar T.R.,et al. An analytical model for relating global terrestrial carbon assimilation with climate and surface conditions using a rate limitation framework[J]. Geophysical Research Letters,2015-01-01,42(22).