Does nitrogen deposition affect soil microfungal diversity and soil N and P dynamics in a high Arctic ecosystem?
In a high Arctic polar semidesert ecosystem (ambient N deposition c. 0.1 g N m(-2) a(-1)), the effects of N enrichment on the diversity of soil microfungi and on N content and availability in organic and mineral soils were determined. Three N (total: 0, 0.5, 5 g N m(-2) a(-1)) and two P (total 0, 1...
Published in: | Global Change Biology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2004
|
Subjects: | |
Online Access: | https://kclpure.kcl.ac.uk/portal/en/publications/does-nitrogen-deposition-affect-soil-microfungal-diversity-and-soil-n-and-p-dynamics-in-a-high-arctic-ecosystem(9ce18a26-7318-4920-8e74-35f5327d0c1a).html https://doi.org/10.1111/j.1529-8817.2003.00793.x http://www.scopus.com/inward/record.url?scp=3242738169&partnerID=8YFLogxK |
id |
ftkingscollondon:oai:pure.atira.dk:publications/9ce18a26-7318-4920-8e74-35f5327d0c1a |
---|---|
record_format |
openpolar |
spelling |
ftkingscollondon:oai:pure.atira.dk:publications/9ce18a26-7318-4920-8e74-35f5327d0c1a 2023-05-15T13:41:41+02:00 Does nitrogen deposition affect soil microfungal diversity and soil N and P dynamics in a high Arctic ecosystem? Robinson, C H Saunders, P W Madan, N J Pryce-Miller, E J Pentecost, A 2004-07 https://kclpure.kcl.ac.uk/portal/en/publications/does-nitrogen-deposition-affect-soil-microfungal-diversity-and-soil-n-and-p-dynamics-in-a-high-arctic-ecosystem(9ce18a26-7318-4920-8e74-35f5327d0c1a).html https://doi.org/10.1111/j.1529-8817.2003.00793.x http://www.scopus.com/inward/record.url?scp=3242738169&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Robinson , C H , Saunders , P W , Madan , N J , Pryce-Miller , E J & Pentecost , A 2004 , ' Does nitrogen deposition affect soil microfungal diversity and soil N and P dynamics in a high Arctic ecosystem? ' , GLOBAL CHANGE BIOLOGY , vol. 10 , no. 7 , pp. 1065 - 1079 . https://doi.org/10.1111/j.1529-8817.2003.00793.x article 2004 ftkingscollondon https://doi.org/10.1111/j.1529-8817.2003.00793.x 2022-10-14T09:53:16Z In a high Arctic polar semidesert ecosystem (ambient N deposition c. 0.1 g N m(-2) a(-1)), the effects of N enrichment on the diversity of soil microfungi and on N content and availability in organic and mineral soils were determined. Three N (total: 0, 0.5, 5 g N m(-2) a(-1)) and two P (total 0, 1 g m(-2) a(-1)) treatments were applied, since P may limit response to N in this ecosystem. Organic and mineral soils were sampled in June and August in the second year of treatment for microfungi, pH, moisture content, and total N and P. In the third year, soils were resampled for extractable and total N and P. The fungi isolated were typical of high pH soils in the High Arctic and Antarctic. The species richness and diversity of soil microfungi were very low, with ranges as follows: Shannon diversity, 0.56-1.5; richness, 2-6; evenness, 0.79-0.9. There was no significant effect of treatment on the frequency of occurrence of different taxa of soil microfungi. Time of sampling also had no significant impact on fungal assemblages, although different, more diverse communities were isolated from organic, rather than mineral, soils. Nitrate-N in organic soil decreased significantly when P was added alone, but not when P and N were added together. Addition of 0.5 g N m(-2) a(-1), a rate deposition already occurring in Greenland and Iceland, appeared to exceed N demand even when P limitation was relieved. There was no apparent soil acidification as a result of the N treatments. Article in Journal/Newspaper Antarc* Antarctic Arctic Arctic Greenland Iceland Shannon King's College, London: Research Portal Antarctic Arctic Greenland Global Change Biology 10 7 1065 1079 |
institution |
Open Polar |
collection |
King's College, London: Research Portal |
op_collection_id |
ftkingscollondon |
language |
English |
description |
In a high Arctic polar semidesert ecosystem (ambient N deposition c. 0.1 g N m(-2) a(-1)), the effects of N enrichment on the diversity of soil microfungi and on N content and availability in organic and mineral soils were determined. Three N (total: 0, 0.5, 5 g N m(-2) a(-1)) and two P (total 0, 1 g m(-2) a(-1)) treatments were applied, since P may limit response to N in this ecosystem. Organic and mineral soils were sampled in June and August in the second year of treatment for microfungi, pH, moisture content, and total N and P. In the third year, soils were resampled for extractable and total N and P. The fungi isolated were typical of high pH soils in the High Arctic and Antarctic. The species richness and diversity of soil microfungi were very low, with ranges as follows: Shannon diversity, 0.56-1.5; richness, 2-6; evenness, 0.79-0.9. There was no significant effect of treatment on the frequency of occurrence of different taxa of soil microfungi. Time of sampling also had no significant impact on fungal assemblages, although different, more diverse communities were isolated from organic, rather than mineral, soils. Nitrate-N in organic soil decreased significantly when P was added alone, but not when P and N were added together. Addition of 0.5 g N m(-2) a(-1), a rate deposition already occurring in Greenland and Iceland, appeared to exceed N demand even when P limitation was relieved. There was no apparent soil acidification as a result of the N treatments. |
format |
Article in Journal/Newspaper |
author |
Robinson, C H Saunders, P W Madan, N J Pryce-Miller, E J Pentecost, A |
spellingShingle |
Robinson, C H Saunders, P W Madan, N J Pryce-Miller, E J Pentecost, A Does nitrogen deposition affect soil microfungal diversity and soil N and P dynamics in a high Arctic ecosystem? |
author_facet |
Robinson, C H Saunders, P W Madan, N J Pryce-Miller, E J Pentecost, A |
author_sort |
Robinson, C H |
title |
Does nitrogen deposition affect soil microfungal diversity and soil N and P dynamics in a high Arctic ecosystem? |
title_short |
Does nitrogen deposition affect soil microfungal diversity and soil N and P dynamics in a high Arctic ecosystem? |
title_full |
Does nitrogen deposition affect soil microfungal diversity and soil N and P dynamics in a high Arctic ecosystem? |
title_fullStr |
Does nitrogen deposition affect soil microfungal diversity and soil N and P dynamics in a high Arctic ecosystem? |
title_full_unstemmed |
Does nitrogen deposition affect soil microfungal diversity and soil N and P dynamics in a high Arctic ecosystem? |
title_sort |
does nitrogen deposition affect soil microfungal diversity and soil n and p dynamics in a high arctic ecosystem? |
publishDate |
2004 |
url |
https://kclpure.kcl.ac.uk/portal/en/publications/does-nitrogen-deposition-affect-soil-microfungal-diversity-and-soil-n-and-p-dynamics-in-a-high-arctic-ecosystem(9ce18a26-7318-4920-8e74-35f5327d0c1a).html https://doi.org/10.1111/j.1529-8817.2003.00793.x http://www.scopus.com/inward/record.url?scp=3242738169&partnerID=8YFLogxK |
geographic |
Antarctic Arctic Greenland |
geographic_facet |
Antarctic Arctic Greenland |
genre |
Antarc* Antarctic Arctic Arctic Greenland Iceland Shannon |
genre_facet |
Antarc* Antarctic Arctic Arctic Greenland Iceland Shannon |
op_source |
Robinson , C H , Saunders , P W , Madan , N J , Pryce-Miller , E J & Pentecost , A 2004 , ' Does nitrogen deposition affect soil microfungal diversity and soil N and P dynamics in a high Arctic ecosystem? ' , GLOBAL CHANGE BIOLOGY , vol. 10 , no. 7 , pp. 1065 - 1079 . https://doi.org/10.1111/j.1529-8817.2003.00793.x |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1529-8817.2003.00793.x |
container_title |
Global Change Biology |
container_volume |
10 |
container_issue |
7 |
container_start_page |
1065 |
op_container_end_page |
1079 |
_version_ |
1766153785072156672 |