DOI: 10.1002/2015GL067162
论文题名: Linear and nonlinear effects of dominant drivers on the trends in global and regional land carbon uptake: 1959 to 2013
作者: Zhang X. ; Rayner P.J. ; Wang Y.-P. ; Silver J.D. ; Lu X. ; Pak B. ; Zheng X.
刊名: Geophysical Research Letters
ISSN: 0094-9351
EISSN: 1944-9082
出版年: 2016
卷: 43, 期: 4 起始页码: 1607
结束页码: 1614
语种: 英语
英文关键词: CABLE
; climate drivers
; land carbon sink
; nonlinear interaction
; terrestrial carbon cycle
; trend
Scopus关键词: Arid regions
; Cables
; Carbon dioxide
; Climate change
; Climate models
; Forestry
; Land use
; Nonlinear analysis
; Carbon sink
; Factorial experiment
; Land surface modeling
; Nonlinear interactions
; Semi-arid region
; Surface temperatures
; Terrestrial carbon cycle
; Trend
; Atmospheric temperature
英文摘要: Changes in atmospheric CO2 levels, surface temperature, or precipitation have been identified to have significantly contributed to the estimated increase in the terrestrial carbon uptake rate over the last few decades; however, those analyses did not consider the interactions. Using the Australian community land surface model (Community Atmosphere Biosphere Land Exchange), we performed factorial experiments to quantify the importance of external drivers (climate drivers and atmospheric CO2) and their interactions on annual terrestrial carbon uptake (FL), excluding land use change and fires, from 1959 to 2013. Our model simulations show a trend of 0.025 ± 0.015 Pg C yr-2 (or ~1.5% yr-1) in global FL for 1959-2013, which is largely attributed to the positive influences of the increased atmospheric CO2 (0.050 ± 0.001 Pg C yr-2) and negative influences of changes in climate (-0.026 ± 0.014 Pg C yr-2). Globally, the contribution of the nonlinear effects of dominant drivers to the simulated trend in FL is small (<10%) but can be significant regionally (>35%), particularly in the boreal forests and semiarid regions. The interactions between temperature and CO2 or temperature and precipitation can dominate the simulated trend in parts of Europe, southeastern North America, southern China, and some semiarid regions. This modeling result suggests that the effects of nonlinear interactions of drivers on the trend of land carbon uptake should be considered in future studies. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959431783&doi=10.1002%2f2015GL067162&partnerID=40&md5=84c78d9132b1cc5b91cecb10193825e1
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10314
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: College of Global Change and Earth System Science, Beijing Normal University, Beijing, China
Recommended Citation:
Zhang X.,Rayner P.J.,Wang Y.-P.,et al. Linear and nonlinear effects of dominant drivers on the trends in global and regional land carbon uptake: 1959 to 2013[J]. Geophysical Research Letters,2016-01-01,43(4).