气候变化领域集成服务门户(CCPortal): The Role of the Upper Tidal Estuary in Wetland Blue Carbon Storage and Flux

CCPortal

DOI	10.1029/2018GB005897
	The Role of the Upper Tidal Estuary in Wetland Blue Carbon Storage and Flux
	Krauss K.W.; Noe G.B.; Duberstein J.A.; Conner W.H.; Stagg C.L.; Cormier N.; Jones M.C.; Bernhardt C.E.; Graeme Lockaby B.; From A.S.; Doyle T.W.; Day R.H.; Ensign S.H.; Pierfelice K.N.; Hupp C.R.; Chow A.T.; Whitbeck J.L.
发表日期	2018
ISSN	0886-6236
EISSN	1944-9224
起始页码	817
结束页码	839
卷号	32 期号:5
英文摘要	Carbon (C) standing stocks, C mass balance, and soil C burial in tidal freshwater forested wetlands (TFFW) and TFFW transitioning to low-salinity marshes along the upper estuary are not typically included in “blue carbon” accounting, but may represent a significant C sink. Results from two salinity transects along the tidal Waccamaw and Savannah rivers of the U.S. Atlantic Coast show that total C standing stocks were 322–1,264 Mg C/ha among all sites, generally shifting to greater soil storage as salinity increased. Carbon mass balance inputs (litterfall, woody growth, herbaceous growth, root growth, and surface accumulation) minus C outputs (surface litter and root decomposition, gaseous C) over a period of up to 11 years were 340–900 g C · m−2 · year−1. Soil C burial was variable (7–337 g C · m−2 · year−1), and lateral C export was estimated as C mass balance minus soil C burial as 267–849 g C · m−2 · year−1. This represents a large amount of C export to support aquatic biogeochemical transformations. Despite reduced C persistence within emergent vegetation, decomposition of organic matter, and higher lateral C export, total C storage increased as forests converted to marsh with salinization. These tidal river wetlands exhibited high N mineralization in salinity-stressed forested sites and considerable P mineralization in low-salinity marshes. Large C standing stocks and rates of C sequestration suggest that TFFW and oligohaline marshes are considerably important globally to coastal C dynamics and in facilitating energy transformations in areas of the world in which they occur. ©2018. American Geophysical Union. All Rights Reserved.
英文关键词	Carbon budget; Marsh; Swamp forest; Tide; Wetland
语种	英语
scopus关键词	biogeochemical cycle; biomineralization; carbon sink; decomposition; litter; mass balance; salinity; saltmarsh; soil carbon; swamp forest; tide; wetland; Atlantic Coast [North America]; Atlantic Coast [United States]; United States; Waccamaw River
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/129826
作者单位	Wetland and Aquatic Research Center, U.S. Geological Survey, Lafayette, LA, United States; Hydrological-Ecological Interactions Branch, U.S. Geological Survey, Reston, VA, United States; Baruch Institute of Coastal Ecology and Forest Science, Clemson University, Georgetown, SC, United States; Department of Environmental Sciences, Macquarie University, Sydney, NSW, Australia; Eastern Geology and Paleoclimate Science Center, U.S. Geological Survey, Reston, VA, United States; School of Forestry and Wildlife Sciences, Auburn University, Auburn, AL, United States; Aquatic Analysis and Consulting, Morehead City, NC, United States; Jean Lafitte National Historical Park and Preserve, National Park Service, New Orleans, LA, United States
推荐引用方式 GB/T 7714	Krauss K.W.,Noe G.B.,Duberstein J.A.,et al. The Role of the Upper Tidal Estuary in Wetland Blue Carbon Storage and Flux[J],2018,32(5).
APA	Krauss K.W..,Noe G.B..,Duberstein J.A..,Conner W.H..,Stagg C.L..,...&Whitbeck J.L..(2018).The Role of the Upper Tidal Estuary in Wetland Blue Carbon Storage and Flux.Global Biogeochemical Cycles,32(5).
MLA	Krauss K.W.,et al."The Role of the Upper Tidal Estuary in Wetland Blue Carbon Storage and Flux".Global Biogeochemical Cycles 32.5(2018).