Long-term phosphorus trends in Swedish rivers and streams
Phosphorus (P) is often considered the limiting nutrient for freshwater productivity because of its relevant role in regulating algal production and determining community composition. The concern for increasing anthropogenic P inputs registered since the last century has shaped environmental policie...
Main Author: | |
---|---|
Format: | Text |
Language: | Swedish English |
Published: |
2022
|
Subjects: | |
Online Access: | https://stud.epsilon.slu.se/17573/3/camiolo_s_220301.pdf |
id |
ftsluppsalast:oai:stud.epsilon.slu.se:17573 |
---|---|
record_format |
openpolar |
spelling |
ftsluppsalast:oai:stud.epsilon.slu.se:17573 2023-05-15T17:40:19+02:00 Long-term phosphorus trends in Swedish rivers and streams Camiolo, Sara 2022-02-23 application/pdf https://stud.epsilon.slu.se/17573/3/camiolo_s_220301.pdf sv eng swe eng https://stud.epsilon.slu.se/17573/ urn:nbn:se:slu:epsilon-s-17573 https://stud.epsilon.slu.se/17573/3/camiolo_s_220301.pdf Camiolo, Sara, 2021. Long-term phosphorus trends in Swedish rivers and streams : widespread and persistent nutrient decline. Second cycle, A2E. Uppsala: (NL, NJ) > Dept. of Aquatic Sciences and Assessment <https://stud.epsilon.slu.se/view/divisions/OID-280.html> Water resources and management Second cycle, A2E NonPeerReviewed 2022 ftsluppsalast 2022-09-10T18:13:11Z Phosphorus (P) is often considered the limiting nutrient for freshwater productivity because of its relevant role in regulating algal production and determining community composition. The concern for increasing anthropogenic P inputs registered since the last century has shaped environmental policies around the world to limit the effects of algal bloom (also known as eutrophication) in freshwater ecosystems through the establishment of maximum threshold nutrient concentrations. In addition to water quality impairments due to eutrophication, a recent number of studies have detected critical P declines occurring in various countries of the northern hemisphere. In Sweden, the few research works within the topic have focused on lakes minimally affected by anthropogenic disturbance, showing persistent P declines across the country. The overall aim of the present study was to determine whether analogous nutrient depletion (also known as oligotrophication) could be found in Swedish streams and rivers (n=34) with comparable conditions. Time trends analyses showed that the majority of the statistically significant (Mann-Kendall test, p value <0.05) watercourses had relevant total phosphorus (Tot-P) and phosphate (PO₄P) declining concentrations between 1980 – 2020, and the most important losses were registered for river stations situated in north Sweden. Despite the failure in identifying any correlational relationship between P trends and land use and land cover variables in the present study, further research work is needed to assess the validity of the hypothesised explanatory factors (vegetation, climate change and soil) for the ongoing oligotrophication. In conclusion, the study confirmed that a significant nutrient depletion is occurring in minimally anthropogenic disturbed catchments across Sweden accordingly to previous research works on the subject matter. In view of the obtained results and the significant evidence that oligotrophication is occurring in freshwater ecosystems of the northern hemisphere, water ... Text North Sweden Swedish University of Agricultural Sciences: Epsilon Archive for Student Projects Kendall ENVELOPE(-59.828,-59.828,-63.497,-63.497) |
institution |
Open Polar |
collection |
Swedish University of Agricultural Sciences: Epsilon Archive for Student Projects |
op_collection_id |
ftsluppsalast |
language |
Swedish English |
topic |
Water resources and management |
spellingShingle |
Water resources and management Camiolo, Sara Long-term phosphorus trends in Swedish rivers and streams |
topic_facet |
Water resources and management |
description |
Phosphorus (P) is often considered the limiting nutrient for freshwater productivity because of its relevant role in regulating algal production and determining community composition. The concern for increasing anthropogenic P inputs registered since the last century has shaped environmental policies around the world to limit the effects of algal bloom (also known as eutrophication) in freshwater ecosystems through the establishment of maximum threshold nutrient concentrations. In addition to water quality impairments due to eutrophication, a recent number of studies have detected critical P declines occurring in various countries of the northern hemisphere. In Sweden, the few research works within the topic have focused on lakes minimally affected by anthropogenic disturbance, showing persistent P declines across the country. The overall aim of the present study was to determine whether analogous nutrient depletion (also known as oligotrophication) could be found in Swedish streams and rivers (n=34) with comparable conditions. Time trends analyses showed that the majority of the statistically significant (Mann-Kendall test, p value <0.05) watercourses had relevant total phosphorus (Tot-P) and phosphate (PO₄P) declining concentrations between 1980 – 2020, and the most important losses were registered for river stations situated in north Sweden. Despite the failure in identifying any correlational relationship between P trends and land use and land cover variables in the present study, further research work is needed to assess the validity of the hypothesised explanatory factors (vegetation, climate change and soil) for the ongoing oligotrophication. In conclusion, the study confirmed that a significant nutrient depletion is occurring in minimally anthropogenic disturbed catchments across Sweden accordingly to previous research works on the subject matter. In view of the obtained results and the significant evidence that oligotrophication is occurring in freshwater ecosystems of the northern hemisphere, water ... |
format |
Text |
author |
Camiolo, Sara |
author_facet |
Camiolo, Sara |
author_sort |
Camiolo, Sara |
title |
Long-term phosphorus trends in Swedish rivers and streams |
title_short |
Long-term phosphorus trends in Swedish rivers and streams |
title_full |
Long-term phosphorus trends in Swedish rivers and streams |
title_fullStr |
Long-term phosphorus trends in Swedish rivers and streams |
title_full_unstemmed |
Long-term phosphorus trends in Swedish rivers and streams |
title_sort |
long-term phosphorus trends in swedish rivers and streams |
publishDate |
2022 |
url |
https://stud.epsilon.slu.se/17573/3/camiolo_s_220301.pdf |
long_lat |
ENVELOPE(-59.828,-59.828,-63.497,-63.497) |
geographic |
Kendall |
geographic_facet |
Kendall |
genre |
North Sweden |
genre_facet |
North Sweden |
op_relation |
https://stud.epsilon.slu.se/17573/ urn:nbn:se:slu:epsilon-s-17573 https://stud.epsilon.slu.se/17573/3/camiolo_s_220301.pdf Camiolo, Sara, 2021. Long-term phosphorus trends in Swedish rivers and streams : widespread and persistent nutrient decline. Second cycle, A2E. Uppsala: (NL, NJ) > Dept. of Aquatic Sciences and Assessment <https://stud.epsilon.slu.se/view/divisions/OID-280.html> |
_version_ |
1766141199858532352 |