DOI: 10.1002/grl.50423
论文题名: A connection to deep groundwater alters ecosystem carbon fluxes and budgets: Example from a Costa Rican rainforest
作者: Genereux D.P. ; Nagy L.A. ; Osburn C.L. ; Oberbauer S.F.
刊名: Geophysical Research Letters
ISSN: 0094-9079
EISSN: 1944-8810
出版年: 2013
卷: 40, 期: 10 起始页码: 2066
结束页码: 2070
语种: 英语
英文关键词: aquifer
; carbon flux
; groundwater
; rainforest
Scopus关键词: Carbon fluxes
; Deep groundwaters
; Ecosystem carbons
; Field measurement
; Hydrogeological
; rainforest
; Regional groundwater
; Small watersheds
; Aquifers
; Budget control
; Ecosystems
; Groundwater
; Groundwater resources
; Surface waters
; Watersheds
; Carbon
; aquifer
; carbon budget
; carbon flux
; data acquisition
; deep water
; groundwater
; hydrogeology
; rainforest
; Costa Rica
英文摘要: Field studies of watershed carbon fluxes and budgets are critical for understanding the carbon cycle, but the role of deep regional groundwater is poorly known and field examples are lacking. Here we show that discharge of regional groundwater into a lowland Costa Rican rainforest has a major influence on ecosystem carbon fluxes. This influence is observable through chemical, isotopic, and flux signals in groundwater, surface water, and air. Not addressing the influence of regional groundwater in the field measurement program and data analysis would give a misleading impression of the overall carbon source or sink status of the rainforest. In quantifying a carbon budget with the traditional "small watershed" mass balance approach, it would be critical at this site and likely many others to consider watershed inputs or losses associated with exchange between the ecosystem and the deeper hydrogeological system on which it sits. ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879933740&doi=10.1002%2fgrl.50423&partnerID=40&md5=2eeeb5aba0f21b095887058c5c442da9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6343
Appears in Collections: 气候减缓与适应
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作者单位: Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, 5135 Jordan Hall, Raleigh, NC 27659-8208, United States
Recommended Citation:
Genereux D.P.,Nagy L.A.,Osburn C.L.,et al. A connection to deep groundwater alters ecosystem carbon fluxes and budgets: Example from a Costa Rican rainforest[J]. Geophysical Research Letters,2013-01-01,40(10).