Reindeer alters field layer nutrient stocks : A study in dry, boreal pine forests
Dry, boreal, forest ecosystems have been shown to alternate due to reindeer presence by changing the field layer. This affects the temperature of the soil, changes the microclimate and the nutrients of soil and field layer. By removal of biomass and trampling stress the ground lichen mats reduce in...
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Umeå universitet, Institutionen för ekologi, miljö och geovetenskap
2023
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ftumeauniv:oai:DiVA.org:umu-211342 2023-11-05T03:44:18+01:00 Reindeer alters field layer nutrient stocks : A study in dry, boreal pine forests Alriksson, Agnes 2023 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-211342 eng eng Umeå universitet, Institutionen för ekologi, miljö och geovetenskap http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-211342 info:eu-repo/semantics/openAccess Reindeer grazing lichen carbon storage boreal pine forest renar bete lav kollagring boreal tallskog Natural Sciences Naturvetenskap Student thesis info:eu-repo/semantics/bachelorThesis text 2023 ftumeauniv 2023-10-11T22:36:25Z Dry, boreal, forest ecosystems have been shown to alternate due to reindeer presence by changing the field layer. This affects the temperature of the soil, changes the microclimate and the nutrients of soil and field layer. By removal of biomass and trampling stress the ground lichen mats reduce in cover and thickness. In this thesis two dry, boreal pine forests in Northern Finland were studied, to see how the nutrient stocks in the field layer are impacted by reindeer presence. A comparison of the same site, with >20 years in between was studied to see how year-round grazing affect the carbon storage in the field layer compared to winter grazing. I found that reindeer grazing reduces the vegetation carbon storage, however, the impact on the vegetation nitrogen storage differs with site. Furthermore, the lichens and shrubs had lower C:N ratios because of increased nitrogen content in the plant tissue and unaffected carbon content. These results show that reindeer actively changes the vegetation quantity and quality which will have implications for the soil carbon storage. Bachelor Thesis Northern Finland Umeå University: Publications (DiVA) |
institution |
Open Polar |
collection |
Umeå University: Publications (DiVA) |
op_collection_id |
ftumeauniv |
language |
English |
topic |
Reindeer grazing lichen carbon storage boreal pine forest renar bete lav kollagring boreal tallskog Natural Sciences Naturvetenskap |
spellingShingle |
Reindeer grazing lichen carbon storage boreal pine forest renar bete lav kollagring boreal tallskog Natural Sciences Naturvetenskap Alriksson, Agnes Reindeer alters field layer nutrient stocks : A study in dry, boreal pine forests |
topic_facet |
Reindeer grazing lichen carbon storage boreal pine forest renar bete lav kollagring boreal tallskog Natural Sciences Naturvetenskap |
description |
Dry, boreal, forest ecosystems have been shown to alternate due to reindeer presence by changing the field layer. This affects the temperature of the soil, changes the microclimate and the nutrients of soil and field layer. By removal of biomass and trampling stress the ground lichen mats reduce in cover and thickness. In this thesis two dry, boreal pine forests in Northern Finland were studied, to see how the nutrient stocks in the field layer are impacted by reindeer presence. A comparison of the same site, with >20 years in between was studied to see how year-round grazing affect the carbon storage in the field layer compared to winter grazing. I found that reindeer grazing reduces the vegetation carbon storage, however, the impact on the vegetation nitrogen storage differs with site. Furthermore, the lichens and shrubs had lower C:N ratios because of increased nitrogen content in the plant tissue and unaffected carbon content. These results show that reindeer actively changes the vegetation quantity and quality which will have implications for the soil carbon storage. |
format |
Bachelor Thesis |
author |
Alriksson, Agnes |
author_facet |
Alriksson, Agnes |
author_sort |
Alriksson, Agnes |
title |
Reindeer alters field layer nutrient stocks : A study in dry, boreal pine forests |
title_short |
Reindeer alters field layer nutrient stocks : A study in dry, boreal pine forests |
title_full |
Reindeer alters field layer nutrient stocks : A study in dry, boreal pine forests |
title_fullStr |
Reindeer alters field layer nutrient stocks : A study in dry, boreal pine forests |
title_full_unstemmed |
Reindeer alters field layer nutrient stocks : A study in dry, boreal pine forests |
title_sort |
reindeer alters field layer nutrient stocks : a study in dry, boreal pine forests |
publisher |
Umeå universitet, Institutionen för ekologi, miljö och geovetenskap |
publishDate |
2023 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-211342 |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_relation |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-211342 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1781703843794386944 |