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Auswahl der wissenschaftlichen Literatur zum Thema „Nationella planen“
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Zeitschriftenartikel zum Thema "Nationella planen"
Lundgren, Mats, Eva-Lena Embretsen, Ulf Nytell und Stefan Weinholz. „Transformering av en masterplan till åtgärdsplaner i svenska skolor“. Pedagogisk forskning i Sverige 26, Nr. 1 (04.05.2021): 94–117. http://dx.doi.org/10.15626/pfs26.01.05.
Der volle Inhalt der QuelleSopanen, Pauliina. „Språkmedvetenhet i småbarnspedagogiskt arbete – Finländska daghemspedagogers reflektioner“. Tidsskrift for Nordisk barnehageforskning 18, Nr. 1 (27.06.2019). http://dx.doi.org/10.7577/nbf.2868.
Der volle Inhalt der QuelleDissertationen zum Thema "Nationella planen"
Wallin, Tony. „Metoder för identifiering och kvalitetsbestämning av lax- och öringhabitat“. Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298186.
Der volle Inhalt der QuelleHydropower is vital for Sweden. Not only does it provide Sweden with around 40% of the annual electricity production and supply the electric grid with system services, but the energy is also to be concerned as renewable with no greenhouse gas emissions. However, the hydropower plants and its dams create environmental problems for the aquatic life in the lake and streams. Moreover, little to no measures have been implemented as most powerplants come from a time where the concern and requirements for environmental mitigation measures were considered. Sweden’s hydropower is therefore to apply for new water permits in line with the Swedish environmental code, likely to result in many powerplants having to implement mitigation measures to lower their impact on the aquatic life. In this work, data on river habitats must compiled, however, the extent to which this data exists varies between different river basins. In river basins where the level of this kind of knowledge is low there is a need for cost-effective ways to investigate this matter. The aim of the thesis was to test and evaluate methods that can be used to identify in stream habitats for trout and salmon parr and assess the quality of these habitats using data which is highly available for many river basins. First a slope analysis was conducted in GIS, to identify rapids in the study area. The method is based on calculating the average slope along the river using the national terrain model. Once rapids were identified, aerial footage was studied to determine the rate of shadow cast on the watercourse and a free to use hydraulic model was used to calculate water velocity, depth, and top width at the rapid locations. Later, the above-mentioned parameters were combined using two methods, trout habitat score and salmon habitat class, to rate the rapids’ functionality as habitat for salmon and trout parr. Finally, the habitat location and quality of the identified rapids were validated against already known habitats, mapped with conventional habitat mapping methods. Using the slope analysis, all known habitats were identified. However, there were a few uncertainties as several river stretches, not mapped as habitat, also were identified. These wrongly identified rapids were for the most part to be regarded as moderately flat and could be excluded using aerial photographs. When it comes to the predicted habitat quality, it can be concluded that it generally was underestimated when compared to the habitat quality from the habitat mapping. The reasons for this were not fully investigated in this thesis, however much points towards weaknesses related to the hydraulic model as it primarily was hydraulic parameters such as depth and top width that was underestimated. The thesis conclude that the slope analysis is a strong tool when it comes to locating in stream habitats using sparse data and has good potential as a screening tool, but one must be aware of the method’s short comings. The hydraulic model on the other hand, shouldn’t be used in its original form to investigate habitat quality.
Kuoljok, Simon Pirak. „Konnektivitetsåtgärder i Emån : En fallstudie vid Högsby vattenkraftverk“. Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298253.
Der volle Inhalt der QuelleIn 2020 the national plan for hydropower plants was implemented in Sweden. The national plan aims to increase the environmental standards for hydropower plants for the benefit of the water body and still maintain an efficient access to electricity originated from hydropower. Emån is the largest river in the south-eastern part of Sweden. The river a Natura 2000 area and it is classified as moderate based on connectivity according to environmental norm for rivers and water bodies. Högsby hydropower plant located along Emån is owned by Uniper and are included within the national plan, which indicate that it needs to meet the environmental standard. Högsby hydropower plant currently has no established minimum discharge. The aim of the study is to investigate a minimum discharge for the natural dry stream located in Högsby to enable higher connectivity for the fish species that have historically been able to migrate through Högsby. The natural stream is downstream the spillway dam in Högsby. Within the stream a weir is considered to be the most difficult passage for fish migration, with the exception of the spillway dam. The method used in the report is a one-dimensional steady flow model in HEC-RAS for the natural stream to investigate the possibility for fish migration past the hydropower plant. Two scenarios have been considered – with and without the crest dam present. Based on the result from the model, the highest mean water velocity is the section below the weir for both scenarios and same applies to the mean water depth. Implementation of a minimum discharge and various fish ways in the natural stream is measures for increasing connectivity that are being discussed which would also maintain the rapids that has existed in the stream. The fish ways that have been discussed is based on the scenarios if the weir is present or not. The fish species that with great certainty have been able to migrate through Högsby historically is sea trout and salmon. Högsby hydropower plant have the highest classified regulation of the hydropower plants in Emån which need to be considered when determining minimum discharge. There are a few uncertainties with the hydraulic model such as bathymetry and the boundary conditions. The model is not validated which means that the water depth and the velocity might not reflect the true values. It is not certain which fish species that have migrated through Högsby historically, nor can an established minimum discharge be said to enable fish migration. However, an implementation of a minimum discharge and the fish ways that have been discussed will increase the connectivity in Högsby.
Ahlgren, Victoria, und Erica Andersson. „Råd och planer för likabehandling : En studie av två nationella rådgivande dokument och sex gymnasieskolors likabehandlingsplaner“. Thesis, Linköpings universitet, Institutionen för beteendevetenskap och lärande, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-78788.
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