气候变化领域集成服务门户(CCPortal): Can Rates of Ocean Primary Production and Biological Carbon Export Be Related Through Their Probability Distributions?

CCPortal

DOI	10.1029/2017GB005797
	Can Rates of Ocean Primary Production and Biological Carbon Export Be Related Through Their Probability Distributions?
	Cael B.B.; Bisson K.; Follett C.L.
发表日期	2018
ISSN	0886-6236
EISSN	1944-9224
起始页码	954
结束页码	970
卷号	32 期号:6
英文摘要	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.
英文关键词	carbon cycle; carbon export; export flux; lognormal distribution; primary production; scaling relationship
语种	英语
scopus关键词	biogeochemical cycle; carbon sequestration; flux measurement; phytoplankton; prediction; primary production; probability; sea surface; source-sink dynamics
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129822
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
推荐引用方式 GB/T 7714	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],2018,32(6).
APA	Cael B.B.,Bisson K.,&Follett C.L..(2018).Can Rates of Ocean Primary Production and Biological Carbon Export Be Related Through Their Probability Distributions?.Global Biogeochemical Cycles,32(6).
MLA	Cael B.B.,et al."Can Rates of Ocean Primary Production and Biological Carbon Export Be Related Through Their Probability Distributions?".Global Biogeochemical Cycles 32.6(2018).