Deep pore water profiles reflect enhanced microbial activity towards tidal flat margins

被引：30
作者：
Beck, Melanie [1 ]
Koester, Juergen [1 ]
Engelen, Bert [1 ]
Holstein, Jan M. [1 ]
Gittel, Antje [1 ]
Koenneke, Martin [1 ]
Riedel, Thomas [1 ]
Wirtz, Kai [1 ]
Cypionka, Heribert [1 ]
Rullkoetter, Juergen [1 ]
Brumsack, Hans-Juergen [1 ]
机构：
[1] Carl VonOssietzky Univ Oldenburg, Inst Chem & Biol Marine Environm, D-26129 Oldenburg, Germany
来源：
OCEAN DYNAMICS | 2009年 / 59卷 / 02期
关键词：
Pore water; Sulfate reduction; Methanogenesis; Advection; Sedimentation rate; Integrated sediment model; SOUTHERN NORTH-SEA; GERMAN WADDEN SEA; SULFATE-REDUCING BACTERIA; DISSOLVED ORGANIC-CARBON; INTERTIDAL SAND FLAT; PERMEABLE SEDIMENTS; ADVECTIVE TRANSPORT; COMMUNITY STRUCTURE; MATTER; NUTRIENT;
D O I：
10.1007/s10236-008-0176-z
中图分类号：
P7 [海洋学];
学科分类号：
0707 ;
摘要：
Microbial activity in permeable tidal flat margin sediments is enhanced by two main processes. First, organic matter is supplied by rapid sedimentation at prograding tidal flat margins. Second, surface and deep pore water advection lead to a replenishment of the dissolved organic matter and sulfate pools. Increasing microbial activity towards the low water line is reflected in sulfate and methane profiles as well as in total cell numbers, sulfate reduction rates, and remineralization products. The impact of high sedimentation rates on pore water biogeochemistry is confirmed by inverse modeling reproducing the depth profiles obtained by measurements. In central parts of the tidal flats, low sedimentation rates and pore water flow velocities limit microbial activity despite the high availability of electron acceptors for microbial respiration such as sulfate. Therefore, tidal flat margins with high microbial activity are of special importance for budgeting biogeochemical cycling in tidal flat areas.
引用
收藏
页码：371 / 383
页数：13
相关论文
共 50 条
[1]   Cycling of trace metals (Mn, Fe, Mo, U, V, Cr) in deep pore waters of intertidal flat sediments [J].
Beck, Melanie ;
Dellwig, Laf ;
Schnetger, Bernhard ;
Brumsack, Hans-Juergen .
GEOCHIMICA ET COSMOCHIMICA ACTA, 2008, 72 (12) :2822-2840
[2]   Spatial and seasonal variations of sulphate, dissolved organic carbon, and nutrients in deep pore waters of intertidal flat sediments [J].
Beck, Melanie ;
Dellwig, Olaf ;
Liebezeit, Gerd ;
Schnetger, Bernhard ;
Brumsack, Hans-Juergen .
ESTUARINE COASTAL AND SHELF SCIENCE, 2008, 79 (02) :307-316
[3]   Sulphate, dissolved organic carbon, nutrients and terminal metabolic products in deep pore waters of an intertidal flat [J].
Beck, Melanie ;
Dellwig, Olaf ;
Holstein, Jan M. ;
Grunwald, Maik ;
Liebezeit, Gerd ;
Schnetger, Bernhard ;
Brumsack, Hans-Juergen .
BIOGEOCHEMISTRY, 2008, 89 (02) :221-238
[4]   In situ pore water sampling in deep intertidal flat sediments [J].
Beck, Melanie ;
Dellwig, Olaf ;
Kolditz, Kerstin ;
Freund, Holger ;
Liebezeit, Gerd ;
Schnetger, Bernhard ;
Brumsack, Hans-Juergen .
LIMNOLOGY AND OCEANOGRAPHY-METHODS, 2007, 5 :136-144
[5]  
Beyer W., 1964, Wassertech. WWT, P165
[6]   Surficial and deep pore water circulation governs spatial and temporal scales of nutrient recycling in intertidal sand flat sediment [J].
Billerbeck, Markus ;
Werner, Ursula ;
Polerecky, Lubos ;
Walpersdorf, Eva ;
deBeer, Dirk ;
Huettel, Markus .
MARINE ECOLOGY PROGRESS SERIES, 2006, 326 :61-76
[7]   Nutrient release from an exposed intertidal sand flat [J].
Billerbeck, Markus ;
Werner, Ursula ;
Bosselmann, Katja ;
Walpersdorf, Eva ;
Huettel, Markus .
MARINE ECOLOGY PROGRESS SERIES, 2006, 316 :35-51
[8]  
BOSSELMANN K, 2007, THESIS U OLDENBURG G
[9]  
Bottcher M.E., 1997, ISOT ENVIRON HEALT S, V33, P109
[10]   Sulfate reduction related to the early diagenetic degradation of organic matter and "black spot" formation in tidal sandflats of the German Wadden Sea (southern North Sea):: stable isotope (13C, 34S,18O) and other geochemical results [J].
Böttcher, ME ;
Oelschläger, B ;
Höpner, T ;
Brumsack, HJ ;
Rullkötter, J .
ORGANIC GEOCHEMISTRY, 1998, 29 (5-7) :1517-1530
12345