scholarly journals Pore water exchange‐driven inorganic carbon export from intertidal salt marshes

2021 ◽  
Author(s):  
Joseph J. Tamborski ◽  
Meagan Eagle ◽  
Barret L. Kurylyk ◽  
Kevin D. Kroeger ◽  
Zhaoihui Aleck Wang ◽  
...  
Keyword(s):  
Pore Water ◽  
Salt Marshes ◽  
Water Exchange ◽  
Inorganic Carbon ◽  
Carbon Export

scholarly journals Spatial and Temporal Variability of Inorganic Carbon Export from Intertidal Salt Marshes

2020 ◽  
Author(s):  
Joseph Tamborski ◽  
Meagan Eagle Gonneea ◽  
Kevin Kroeger ◽  
Zhaoihui Aleck Wang ◽  
Paul Henderson ◽  
...  
Keyword(s):  
Salt Marshes ◽  
Temporal Variability ◽  
Inorganic Carbon ◽  
Spatial And Temporal Variability ◽  
Carbon Export

The “salt wedge pump”: Convection-driven pore-water exchange as a source of dissolved organic and inorganic carbon and nitrogen to an estuary

2012 ◽  
Vol 57 (5) ◽  
pp. 1415-1426 ◽  
Author(s):  
Isaac R. Santos ◽  
Perran L. M. Cook ◽  
Louissa Rogers ◽  
Jason de Weys ◽  
Bradley D. Eyre
Keyword(s):  
Pore Water ◽  
Water Exchange ◽  
Inorganic Carbon ◽  
Salt Wedge ◽  
Carbon And Nitrogen ◽  
Organic And Inorganic Carbon

scholarly journals Deciphering the dynamics of inorganic carbon export from intertidal salt marshes using high-frequency measurements

2018 ◽  
Vol 206 ◽  
pp. 7-18 ◽  
Author(s):  
Sophie N. Chu ◽  
Zhaohui Aleck Wang ◽  
Meagan Eagle Gonneea ◽  
Kevin D. Kroeger ◽  
Neil K. Ganju
Keyword(s):  
Salt Marshes ◽  
High Frequency ◽  
Inorganic Carbon ◽  
Carbon Export ◽  
Frequency Measurements

scholarly journals Particulate organic carbon (POC) in relation to other pore water carbon fractions in drained and rewetted fens in Southern Germany

2008 ◽  
Vol 5 (6) ◽  
pp. 1615-1623 ◽  
Author(s):  
S. Fiedler ◽  
B. S. Höll ◽  
A. Freibauer ◽  
K. Stahr ◽  
M. Drösler ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Particulate Organic Carbon ◽  
Pore Water ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Relative Importance ◽  
Pore Waters ◽  
Calcareous Fens ◽  
Essential Components ◽  
The Individual

Abstract. Numerous studies have dealt with carbon (C) contents in Histosols, but there are no studies quantifying the relative importance of the individual C components in pore waters. For this study, measurements were taken of all the carbon components (particulate organic carbon, POC; dissolved organic carbon, DOC; dissolved inorganic carbon, DIC; dissolved methane, CH4) in the soil pore water of calcareous fens under three different water management regimes (re-wetted, deeply and moderately drained). Pore water was collected weekly or biweekly (April 2004 to April 2006) at depths between 10 and 150 cm. The main results obtained were: (1) DIC (94–280 mg C l−1) was the main C-component. (2) POC and DOC concentrations in the pore water (14–125 mg C l−1 vs. 41–95 mg C l−1) were pari passu. (3) Dissolved CH4 was the smallest C component (0.005–0.9 mg C l−1). Interestingly, about 30% of the POM particles were colonized by microbes indicating that they are active in the internal C turnover. Certainly, both POC and DOC fractions are essential components of the C budget of peatlands. Furthermore, dissolved CO2 in all forms of DIC appears to be an important part of peatland C-balance.

scholarly journals Pore water physicochemical constraints on the endangered clubshell mussel (Pleurobema clava)

2016 ◽  
Vol 73 (12) ◽  
pp. 1712-1722 ◽  
Author(s):  
Sarah S. Roley ◽  
Jennifer L. Tank
Keyword(s):  
Organic Matter ◽  
Pore Water ◽  
Water Surface ◽  
Water Exchange ◽  
Organic Matter Content ◽  
Stream Sediments ◽  
Matter Content ◽  
Sedimentation Rates ◽  
Sediment Loading ◽  
Riverine Sediment

Freshwater mussels are in decline worldwide, but it remains challenging to link specific stressors to mussel declines. The clubshell mussel (Pleurobema clava) is a federally endangered species that spends most of its life completely buried beneath stream sediments. We tested the hypothesis that clubshell’s decline stems, in part, from low pore water dissolved oxygen (DO) concentrations and toxic ammonia (NH3) levels, resulting from sedimentation of interstitial pore spaces. We measured pore water DO, NH3, interstitial sedimentation rates, and sediment organic matter content in the Tippecanoe River (Indiana, USA) at sites that spanned a range of clubshell populations, including two sites devoid of clubshell. We found little evidence for pore water NH3 stress, but pore water DO generally declined with clubshell population and dipped below stress thresholds more frequently at non-clubshell sites than at sites with clubshell. In addition, interstitial sedimentation rates generally increased as clubshell populations declined, suggesting that the low DO concentrations were the result of decreased pore water – surface water exchange. As a result, we conclude that maintaining or improving habitat for clubshell mussels will require the reduction of riverine sediment loading.

Dissolved Inorganic Carbon Export Across the Soil/Stream Interface and Its Fate in a Boreal Headwater Stream

2009 ◽  
Vol 43 (19) ◽  
pp. 7364-7369 ◽  
Author(s):  
Mats G. Öquist ◽  
Marcus Wallin ◽  
Jan Seibert ◽  
Kevin Bishop ◽  
Hjalmar Laudon
Keyword(s):  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Headwater Stream ◽  
Carbon Export ◽  
Stream Interface
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