DOI: 10.1029/2017GB005797
论文题名: Can Rates of Ocean Primary Production and Biological Carbon Export Be Related Through Their Probability Distributions?
作者: Cael B.B. ; Bisson K. ; Follett C.L.
刊名: Global Biogeochemical Cycles
ISSN: 0886-6236
EISSN: 1944-9224
出版年: 2018
卷: 32, 期: 6 语种: 英语
英文关键词: biogeochemical cycle
; carbon sequestration
; flux measurement
; phytoplankton
; prediction
; primary production
; probability
; sea surface
; source-sink dynamics
学科: carbon cycle
; carbon export
; export flux
; lognormal distribution
; primary production
; scaling relationship
中文摘要: We describe the basis of a theory for interpreting measurements of two key biogeochemical fluxes—primary production by phytoplankton (p, μg C · L−1 · day−1) and biological carbon export from the surface ocean by sinking particles (f, mg C · m−2 · day−1)—in terms of their probability distributions. Given that p and f are mechanistically linked but variable and effectively measured on different scales, we hypothesize that a quantitative relationship emerges between collections of the two measurements. Motivated by the many subprocesses driving production and export, we take as a null model that large-scale distributions of p and f are lognormal. We then show that compilations of p and f measurements are consistent with this hypothesis. The compilation of p measurements is extensive enough to subregion by biome, basin, depth, or season; these subsets are also well described by lognormals, whose log-moments sort predictably. Informed by the lognormality of both p and f we infer a statistical scaling relationship between the two quantities and derive a linear relationship between the log-moments of their distributions. We find agreement between two independent estimates of the slope and intercept of this line and show that the distribution of f measurements is consistent with predictions made from the moments of the p distribution. These results illustrate the utility of a distributional approach to biogeochemical fluxes. We close by describing potential uses and challenges for the further development of such an approach. ©2018. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160226
Appears in Collections: 气候变化与战略
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作者单位: Massachusetts Institute of Technology, Cambridge, MA, United States; Woods Hole Oceanographic Institution, Woods Hole, MA, United States; University of California, Santa Barbara, CA, United States
Recommended Citation:
Cael B.B.,Bisson K.,Follett C.L.. Can Rates of Ocean Primary Production and Biological Carbon Export Be Related Through Their Probability Distributions?[J]. Global Biogeochemical Cycles,2018-01-01,32(6)