Uncovering biological soil crusts: carbon content and structure of intact Arctic, Antarctic and alpine biological soil crusts
Arctic, Antarctic and alpine biological soil crusts (BSCs) are formed by adhesion of soil particles to exopolysaccharides (EPSs) excreted by cyanobacterial and green algal communities, the pioneers and main primary producers in these habitats. These BSCs provide and influence many ecosystem services...
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Copernicus Publications
2018
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00007243 2023-05-15T13:34:49+02:00 Uncovering biological soil crusts: carbon content and structure of intact Arctic, Antarctic and alpine biological soil crusts Jung, Patrick Briegel-Williams, Laura Simon, Anika Thyssen, Anne Büdel, Burkhard 2018-02 electronic https://doi.org/10.5194/bg-15-1149-2018 https://noa.gwlb.de/receive/cop_mods_00007243 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00007200/bg-15-1149-2018.pdf https://bg.copernicus.org/articles/15/1149/2018/bg-15-1149-2018.pdf eng eng Copernicus Publications Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-15-1149-2018 https://noa.gwlb.de/receive/cop_mods_00007243 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00007200/bg-15-1149-2018.pdf https://bg.copernicus.org/articles/15/1149/2018/bg-15-1149-2018.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2018 ftnonlinearchiv https://doi.org/10.5194/bg-15-1149-2018 2022-02-08T22:58:37Z Arctic, Antarctic and alpine biological soil crusts (BSCs) are formed by adhesion of soil particles to exopolysaccharides (EPSs) excreted by cyanobacterial and green algal communities, the pioneers and main primary producers in these habitats. These BSCs provide and influence many ecosystem services such as soil erodibility, soil formation and nitrogen (N) and carbon (C) cycles. In cold environments degradation rates are low and BSCs continuously increase soil organic C; therefore, these soils are considered to be CO2 sinks. This work provides a novel, non-destructive and highly comparable method to investigate intact BSCs with a focus on cyanobacteria and green algae and their contribution to soil organic C. A new terminology arose, based on confocal laser scanning microscopy (CLSM) 2-D biomaps, dividing BSCs into a photosynthetic active layer (PAL) made of active photoautotrophic organisms and a photosynthetic inactive layer (PIL) harbouring remnants of cyanobacteria and green algae glued together by their remaining EPSs. By the application of CLSM image analysis (CLSM–IA) to 3-D biomaps, C coming from photosynthetic active organisms could be visualized as depth profiles with C peaks at 0.5 to 2 mm depth. Additionally, the CO2 sink character of these cold soil habitats dominated by BSCs could be highlighted, demonstrating that the first cubic centimetre of soil consists of between 7 and 17 % total organic carbon, identified by loss on ignition. Article in Journal/Newspaper Antarc* Antarctic Arctic Niedersächsisches Online-Archiv NOA Antarctic Arctic Biogeosciences 15 4 1149 1160 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Jung, Patrick Briegel-Williams, Laura Simon, Anika Thyssen, Anne Büdel, Burkhard Uncovering biological soil crusts: carbon content and structure of intact Arctic, Antarctic and alpine biological soil crusts |
topic_facet |
article Verlagsveröffentlichung |
description |
Arctic, Antarctic and alpine biological soil crusts (BSCs) are formed by adhesion of soil particles to exopolysaccharides (EPSs) excreted by cyanobacterial and green algal communities, the pioneers and main primary producers in these habitats. These BSCs provide and influence many ecosystem services such as soil erodibility, soil formation and nitrogen (N) and carbon (C) cycles. In cold environments degradation rates are low and BSCs continuously increase soil organic C; therefore, these soils are considered to be CO2 sinks. This work provides a novel, non-destructive and highly comparable method to investigate intact BSCs with a focus on cyanobacteria and green algae and their contribution to soil organic C. A new terminology arose, based on confocal laser scanning microscopy (CLSM) 2-D biomaps, dividing BSCs into a photosynthetic active layer (PAL) made of active photoautotrophic organisms and a photosynthetic inactive layer (PIL) harbouring remnants of cyanobacteria and green algae glued together by their remaining EPSs. By the application of CLSM image analysis (CLSM–IA) to 3-D biomaps, C coming from photosynthetic active organisms could be visualized as depth profiles with C peaks at 0.5 to 2 mm depth. Additionally, the CO2 sink character of these cold soil habitats dominated by BSCs could be highlighted, demonstrating that the first cubic centimetre of soil consists of between 7 and 17 % total organic carbon, identified by loss on ignition. |
format |
Article in Journal/Newspaper |
author |
Jung, Patrick Briegel-Williams, Laura Simon, Anika Thyssen, Anne Büdel, Burkhard |
author_facet |
Jung, Patrick Briegel-Williams, Laura Simon, Anika Thyssen, Anne Büdel, Burkhard |
author_sort |
Jung, Patrick |
title |
Uncovering biological soil crusts: carbon content and structure of intact Arctic, Antarctic and alpine biological soil crusts |
title_short |
Uncovering biological soil crusts: carbon content and structure of intact Arctic, Antarctic and alpine biological soil crusts |
title_full |
Uncovering biological soil crusts: carbon content and structure of intact Arctic, Antarctic and alpine biological soil crusts |
title_fullStr |
Uncovering biological soil crusts: carbon content and structure of intact Arctic, Antarctic and alpine biological soil crusts |
title_full_unstemmed |
Uncovering biological soil crusts: carbon content and structure of intact Arctic, Antarctic and alpine biological soil crusts |
title_sort |
uncovering biological soil crusts: carbon content and structure of intact arctic, antarctic and alpine biological soil crusts |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/bg-15-1149-2018 https://noa.gwlb.de/receive/cop_mods_00007243 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00007200/bg-15-1149-2018.pdf https://bg.copernicus.org/articles/15/1149/2018/bg-15-1149-2018.pdf |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_relation |
Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-15-1149-2018 https://noa.gwlb.de/receive/cop_mods_00007243 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00007200/bg-15-1149-2018.pdf https://bg.copernicus.org/articles/15/1149/2018/bg-15-1149-2018.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/bg-15-1149-2018 |
container_title |
Biogeosciences |
container_volume |
15 |
container_issue |
4 |
container_start_page |
1149 |
op_container_end_page |
1160 |
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1766058119287275520 |