| DOI: | 10.1002/grl.50357
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| 论文题名: | Chromophoric dissolved organic matter export from U.S. rivers |
| 作者: | Spencer R.G.M.; Aiken G.R.; Dornblaser M.M.; Butler K.D.; Holmes R.M.; Fiske G.; Mann P.J.; Stubbins A.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9157
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| EISSN: | 1944-8888
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| 出版年: | 2013
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| 卷: | 40, 期:8 | | 起始页码: | 1575
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| 结束页码: | 1579
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| 语种: | 英语
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| 英文关键词: | chromophoric dissolved organic matter
; loads
; U.S. Rivers
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| Scopus关键词: | Chromophoric dissolved organic matter
; Dissolved organic carbon
; Gulf of Mexico
; loads
; Mississippi
; Relationship development
; South Atlantic
; Ungauged watershed
; Biological materials
; Watersheds
; Wetlands
; Rivers
; biome
; correlation
; dissolved organic matter
; estimation method
; nutrient dynamics
; nutrient enrichment
; river system
; watershed
; Atlantic Ocean
; Edisto River
; Gulf of Mexico
; South Atlantic Bight
; South Carolina
; United States
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| 英文摘要: | Chromophoric dissolved organic matter (CDOM) fluxes and yields from 15 major U.S. rivers draining an assortment of terrestrial biomes are presented. A robust relationship between CDOM and dissolved organic carbon (DOC) loads is established (e.g., a350 versus DOC; r2 = 0.96, p < 0.001). Calculated CDOM yields are also correlated to watershed percent wetland (e.g. a350; r2 = 0.81, p < 0.001) providing a method for the estimation of CDOM export from ungauged watersheds. A large variation in CDOM yields was found across the rivers. The two rivers in the north-eastern U.S. (Androscoggin and Penobscot), the Edisto draining into the South Atlantic Bight, and some rivers draining into the Gulf of Mexico (Atchafalaya and Mobile) exhibit the highest CDOM yields, linked to extensive wetlands in these watersheds. If the Edisto CDOM yield is representative of other rivers draining into the South Atlantic Bight, this would result in a CDOM load equivalent to that of the Mississippi from a region of approximately 10% of the Mississippi watershed, indicating the importance of certain regions with respect to the role of terrigenous CDOM in ocean color budgets. Key points Multisite CDOM load and DOC load relationship Development of CDOM yields shows important regions for future study First estimate of CDOM flux from major U.S. Rivers. ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84877979145&doi=10.1002%2fgrl.50357&partnerID=40&md5=0ad63f3799c84ae997d33d2aba187b73
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6421
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Woods Hole Research Center, Falmouth MA, United States
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| Recommended Citation: | |
Spencer R.G.M.,Aiken G.R.,Dornblaser M.M.,et al. Chromophoric dissolved organic matter export from U.S. rivers[J]. Geophysical Research Letters,2013-01-01,40(8).
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