Mechanisms of enhanced methane emission due to introduction of Spartina anglica and Phragmites australis in a temperate tidal salt marsh

2020 ◽  
Vol 153 ◽  
pp. 105905
Author(s):  
Jinhyun Kim ◽  
Jaehyun Lee ◽  
Jeongeun Yun ◽  
Yerang Yang ◽  
Weixin Ding ◽  
...  
Keyword(s):  
Salt Marsh ◽  
Phragmites Australis ◽  
Methane Emission ◽  
Spartina Anglica ◽  
Tidal Salt Marsh

A foraminiferal proxy record of 20th century sea-level rise in the Manukau Harbour, New Zealand

2012 ◽  
Vol 63 (4) ◽  
pp. 370 ◽  
Author(s):  
Hugh R. Grenfell ◽  
Bruce W. Hayward ◽  
Ritsuo Nomura ◽  
Ashwaq T. Sabaa
Keyword(s):  
New Zealand ◽  
Salt Marsh ◽  
Sea Level Rise ◽  
Sea Level ◽  
20Th Century ◽  
Tide Gauge ◽  
Sediment Accumulation ◽  
Proxy Record ◽  
Tide Gauge Record ◽  
Tidal Salt Marsh

The present study aimed to extract a sea-level history from northern New Zealand salt-marsh sediments using a foraminiferal proxy, and to extend beyond the longest nearby tide-gauge record. Transects through high-tidal salt marsh at Puhinui, Manukau Harbour, Auckland, New Zealand, indicate a zonation of dominant foraminifera in the following order (with increasing elevation): Ammonia spp.–Elphidium excavatum, Ammotium fragile, Miliammina fusca, Haplophragmoides wilberti–Trochammina inflata, Trochamminita salsa–Miliammina obliqua. The transect sample faunas are used as a training set to generate a transfer function for estimating past tidal elevations in two short cores nearby. Heavy metal, 210Pb and 137Cs isotope analyses provide age models that indicate 35 cm of sediment accumulation since ~1890 AD. The first proxy-based 20th century rates of sea-level rise from New Zealand’s North Island at 0.28 ± 0.05 cm year–1 and 0.33 ± 0.07 cm year–1 are estimated. These are faster than the nearby Auckland tide gauge for the same interval (0.17 ± 0.1 cm year–1), but comparable to a similar proxy record from southern New Zealand (0.28 ± 0.05 cm year–1) and to satellite-based observations of global sea-level rise since 1993 (0.31 ± 0.07 cm year–1).

Effects of salinity and inundation on carbon storage of halophytes in the tidal salt marsh of the Yangtze River Estuary, China

2018 ◽  
Vol 38 (9) ◽  
Author(s):  
薛莲 XUE Lian ◽  
李秀珍 LI Xiuzhen ◽  
闫中正 YAN Zhongzheng ◽  
张骞 ZHANG Qian ◽  
丁文慧 DING Wenhui ◽  
...  
Keyword(s):  
Salt Marsh ◽  
Carbon Storage ◽  
Yangtze River ◽  
River Estuary ◽  
Yangtze River Estuary ◽  
The Yangtze River ◽  
Tidal Salt Marsh ◽  
The Yangtze River Estuary

Multi-scale temporal variation of methane flux and its controls in a subtropical tidal salt marsh in eastern China

2018 ◽  
Vol 137 (1-2) ◽  
pp. 163-179 ◽  
Author(s):  
Hong Li ◽  
Shengqi Dai ◽  
Zutao Ouyang ◽  
Xiao Xie ◽  
Haiqiang Guo ◽  
...  
Keyword(s):  
Salt Marsh ◽  
Temporal Variation ◽  
Eastern China ◽  
Methane Flux ◽  
Multi Scale ◽  
Tidal Salt Marsh
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