pH-sensitivity in boreal streams – the influence of landscape characteristics
The goal of the society to increase the proportion of renewable energy has led to an increased demand of bioenergy e.g. forest biomass. However, there are concerns that removal of biomass will lead to decreased base cation concentrations in the soils and acidification of streams. In order to find in...
| Main Author: | |
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| Format: | H2 |
| Language: | Inglés Swedish |
| Published: |
SLU/Dept. of Aquatic Sciences and Assessment
2013
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| Subjects: |
| _version_ | 1855570903133323264 |
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| author | Isaksson, Linda |
| author_browse | Isaksson, Linda |
| author_facet | Isaksson, Linda |
| author_sort | Isaksson, Linda |
| collection | Epsilon Archive for Student Projects |
| description | The goal of the society to increase the proportion of renewable energy has led to an increased demand of bioenergy e.g. forest biomass. However, there are concerns that removal of biomass will lead to decreased base cation concentrations in the soils and acidification of streams. In order to find in which types of landscape removal of branches and tops could have such negative effects, this study aims to analyse the relations between pH-sensitivity and landscape variables in the Bothnia Bay water district. GIS and digital geographical data were used to analyse the landscape in subcatchments. This data were analysed together with stream water chemistry data by using principal component analysis. The results indicate differences between the north and south parts of the district. In the northern subcatchments, pH-sensitivity was positively correlated to water surfaces and coarse quaternary deposits with Scots pine forests. In the south, pH-sensitive streams were positively correlated to till soils and the concentrations of total organic matter (TOC). In both areas, alkalinity and ANC were the most important factors indicating that the buffering capacity primarily was due to weathering. |
| format | H2 |
| id | RepoSLU5792 |
| institution | Swedish University of Agricultural Sciences |
| language | Inglés swe |
| publishDate | 2013 |
| publishDateSort | 2013 |
| publisher | SLU/Dept. of Aquatic Sciences and Assessment |
| publisherStr | SLU/Dept. of Aquatic Sciences and Assessment |
| record_format | eprints |
| spelling | RepoSLU57922013-07-01T11:48:31Z pH-sensitivity in boreal streams – the influence of landscape characteristics Isaksson, Linda pH-sensitivity catchment Base cations Bothnia Bay water district boreal streams The goal of the society to increase the proportion of renewable energy has led to an increased demand of bioenergy e.g. forest biomass. However, there are concerns that removal of biomass will lead to decreased base cation concentrations in the soils and acidification of streams. In order to find in which types of landscape removal of branches and tops could have such negative effects, this study aims to analyse the relations between pH-sensitivity and landscape variables in the Bothnia Bay water district. GIS and digital geographical data were used to analyse the landscape in subcatchments. This data were analysed together with stream water chemistry data by using principal component analysis. The results indicate differences between the north and south parts of the district. In the northern subcatchments, pH-sensitivity was positively correlated to water surfaces and coarse quaternary deposits with Scots pine forests. In the south, pH-sensitive streams were positively correlated to till soils and the concentrations of total organic matter (TOC). In both areas, alkalinity and ANC were the most important factors indicating that the buffering capacity primarily was due to weathering. SLU/Dept. of Aquatic Sciences and Assessment 2013 H2 eng swe https://stud.epsilon.slu.se/5792/ |
| spellingShingle | pH-sensitivity catchment Base cations Bothnia Bay water district boreal streams Isaksson, Linda pH-sensitivity in boreal streams – the influence of landscape characteristics |
| title | pH-sensitivity in boreal streams – the influence
of landscape characteristics |
| title_full | pH-sensitivity in boreal streams – the influence
of landscape characteristics |
| title_fullStr | pH-sensitivity in boreal streams – the influence
of landscape characteristics |
| title_full_unstemmed | pH-sensitivity in boreal streams – the influence
of landscape characteristics |
| title_short | pH-sensitivity in boreal streams – the influence
of landscape characteristics |
| title_sort | ph-sensitivity in boreal streams – the influence
of landscape characteristics |
| topic | pH-sensitivity catchment Base cations Bothnia Bay water district boreal streams |