DOI: 10.1002/2015GL066830
论文题名: Head-of-tide bottleneck of particulate material transport from watersheds to estuaries
作者: Ensign S.H. ; Noe G.B. ; Hupp C.R. ; Skalak K.J.
刊名: Geophysical Research Letters
ISSN: 0094-8318
EISSN: 1944-8049
出版年: 2015
卷: 42, 期: 24 起始页码: 10671
结束页码: 10679
语种: 英语
英文关键词: carbon accumulation
; oligohaline marsh
; sediment transport
; tidal freshwater forested wetland
; tidal freshwater river
Scopus关键词: Carbon
; Forestry
; Sea level
; Sediment transport
; Sedimentation
; Sediments
; Water
; Watersheds
; Wetlands
; Carbon accumulation
; Forested wetlands
; Freshwater rivers
; Maryland , USA
; Oligohaline marsh
; Particulate materials
; Sea level rise
; Sedimentation rates
; Rivers
; carbon
; ceramics
; cesium isotope
; estuarine environment
; floodplain
; freshwater environment
; geoaccumulation
; marsh
; nitrogen
; particulate matter
; phosphorus
; sea level change
; sediment core
; sediment transport
; sediment trap
; sedimentation rate
; tidal range
; watershed
; Choptank River
; Maryland
; Pocomoke River
; United States
英文摘要: We measured rates of sediment, C, N, and P accumulation at four floodplain sites spanning the nontidal through oligohaline Choptank and Pocomoke Rivers, Maryland, USA. Ceramic tiles were used to collect sediment for a year and sediment cores were collected to derive decadal sedimentation rates using 137Cs. The results showed highest rates of short- and long-term sediment, C, N, and P accumulation occurred in tidal freshwater forests at the head of tide on the Choptank and the oligohaline marsh of the Pocomoke River, and lowest rates occurred in the downstream tidal freshwater forests in both rivers. Presumably, watershed material was mostly trapped at the head of tide, and estuarine material was trapped in oligohaline marshes. This hydrologic transport bottleneck at the head of tide stores most available watershed sediment, C, N, and P creating a sediment shadow in lower tidal freshwater forests potentially limiting their resilience to sea level rise. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955197848&doi=10.1002%2f2015GL066830&partnerID=40&md5=71ee6d10c6921f401324fb945d425275
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7934
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: National Research Program, U.S. Geological Survey, Reston, VA, United States
Recommended Citation:
Ensign S.H.,Noe G.B.,Hupp C.R.,et al. Head-of-tide bottleneck of particulate material transport from watersheds to estuaries[J]. Geophysical Research Letters,2015-01-01,42(24).