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387 Uppsatser om Northern Ireland - Sida 26 av 26
Utvärdering av öppna dikens status och funktion : en förstudie i Västmanlands län
Evaluations of open Ditch status and function, with an assessment of suitability of a conversion to a two stage ditch as a low maintenance alternative.
To illustrate Swedish drainage problems this work focused on two agricultural drainage associations assessed in detail with a new method called MADRAS (Minnesota Agricultural Ditch Reach Assessment for Stability). With the assessment of the MADRAS method estimates were made to conclude the ditches operating
problems.
This was made through measurements of sediment depths, mass bank failures etc. in order to quantify ditch problems and propose practical actions for improved ditch stability and water quality.
The MADRAS surveys were conducted in two main ditches that drains 2900 hectares of land on the northern shores of Mälaren. In the study measurements of the ditch cross-sections were also conducted to compare actual profiles with the original map profiles.
The evaluation showed that parts of the studied ditch sections were operatively poor; main reason was mass bank failure, undercut channel banks, sediment aggregations
and narrowed ditches. The profile survey shows that a majority of the profiles 80 % has sediment accumulations there remains only 64 % of the original profile from the map.
Lappland, "lapparnas" land? : En analys av samernas fastighetsrättsliga och folkrättsliga markanspråk i norra Sverige
Syftet med detta arbete är att, dels ur ett fastighetsrättsligt perspektiv, dels ett folkrättsligt perspektiv, utreda om Sveriges urbefolkning samerna kan sägas ha förvärvat en äganderätt till marken i Lappland enligt svensk rätt, eller om detta enbart handlar om en bruksrätt inkluderande renskötsel, jakt och fiske.Vad gäller det fastighetsrättsliga perspektivet har samerna haft en mycket stark fastighetsrättslig ställning på 1600- och 1700-talet. Då behandlades samernas lappskatteland som sådan skattejord, som skattebönderna sedermera genom lagstiftning automatiskt förvärvade full äganderätt till. Så skedde dock inte för samernas del. I stället trängdes de undan från stora delar av sina ursprungliga marker på grund av bl.a. kolonisation, exploateringsintressen, samt nedvärdering av nomadkulturen.
Om den goda badplatsen : beskrivning och analys över fem skånska badplatsers historia, nyttjande och gestaltning i kontexten av badkulturens allmänna utveckling i Skåne
The European history of bath has its roots in the Greek culture about 2500 years ago. In every Greek town was situated at least one center of culture, a gymnasium, that contained bath establishements, areas for physical training, restaurants, librarys and readingrooms.
Already 400 B.C. Hippokrates, founder of the art of healing, spoke for the waters important qualities in medical treatements.
After the Greeks the Romans overtook and maintained the polished manners of bathing, and thanks to them the culture spread to the north of Europe. During the middleages the art of swimming was well respected among soldiers and knights, and was frequently practised in tournament games and competitions. At the same time the bathhouses were developed in the towns of Europe.
Johannishusparken : historia, nutid, framtid
Summary
The estate of Johannishus is situated in the south of Sweden and in the province of Blekinge, about 8 kilometres from the city of Ronneby. The main building together with the park represents the province´s only example of a well preserved estate environment from the early 1800th Century, and was declared as a historic monument in 1982 because of its unique role in the province. Johannishus Park has during 300 years developed in close relation to the main building, the landscape and the surrounding infrastructure. Each century and owner has had an influence on the park, which has resulted in an interesting visible cross-section of 300 years of Swedish garden history. Most noticeable today are the traces from late 19th Century, but in its oldest parts the park contains structures from the early 18th Century.
Rydboholms engelska park : historik och vårdprogram
The estate of Rydboholm is situated in the municipality of Österåker, north of Stockholm, Sweden, and has a long history dating back to the 14th century. Rydboholm was the home of several families of great national importance, such as the Finsta and Vasa clans. However, since the 1500s, the noble family Brahe was the most influential; leaving its mark on the castle and surroundings. The gardens of Rydboholm consist of two parts; The first is from the baroque era, dating back to the 1660s, and the second is an immense landscape park completed around the year 1800 by Magnus Fredrik Brahe.
During his travels through Europe, Magnus Fredrik Brahe was influenced by the new English-style gardens and he brought a large collection of literature on the subject back to Sweden, still kept in the library of Rydboholm.
"Den kemiska bekämpningen av skadlig lövskog har öppnat helt nya vyer för skogsbruket" : flygbesprutning med herbicider i Arjeplog 1953-1978
Attityden gentemot lövträd och lövskog i norra Sverige började förändras i mitten av 1900-talet. Tidigare var lövträden en resurs inom det agrara samhället, men genom det industriella skogsbrukets utveckling började man alltmer betrakta lövträden som ett problem. Lövträden gav sämre lönsamhet på grund av att de inte efterfrågades inom industrin och lövträden ansågs även hota barrträden och deras föryngring genom sin förmåga att föröka sig vegetativt genom stubbskott och rotskott. Det fick till följd att det inom skogsbruket talades om ett ?lövproblem?.
Undersökning av självspridning av contortatallen i norra Sverige
Over the past 40 years 600 000 ha of lodgepole pine (Pinus contorta ssp. latifolia (Engelm.) Critchf.) has been planted in Sweden (280 000 ha on SCA's forest land alone which represents about 15% of the company's total forest land area). In the early 70's SCA situated a number of experimental stands in order to investigate different aspects of the exotic tree, primarily growth rate. To be able to compare the two species plots with scots pine (Pinus sylvestris L.), this species was also planted at the same time and under the same conditions.
A number of questions should always be raised when exotic species are introduced in an ecosystem. Invasiveness, the pathogen situation and purely ethical issues should be discussed.
Extraterrestrisk och terrestrisk kromrik spinell i fanerozoiska kondenserade sediment
This study aims to assess the normal inflow of extraterrestrial chromite to Earth. The results from the investigationare compared to earlier studies of middle Ordovician Orthoceratite Limestone in which 1 - 3 extraterrestrial chromitegrains ( >63 ?Êm ) per kilogram limestone were found. These values have been interpreted as evidence of a twoorders of magnitude increase in the flux of extraterrestrial matter to Earth during a part of middle Ordovician.From an early Paleocene marine sedimentary sequence with known sedimentation rate in Zumaia, northernSpain, 90,5 kilogram of condensed limestone, dated to about 63 Ma, was sampled. The limestone was dissolved inhydrochloric- and hydrofluoric acid and the residue was sieved and searched for opaque minerals under the binocularmicroscope.
Jordförvärvslagens ändring 2005 och dess påverkan vid skogsfastighetsköp : The amendment of Lad Acquisition Act 2005 and its influence on forest property purchase
Since the beginning of the 1900s Sweden has had laws and rules governing the ownership of agricultural and forest land. The foundations of the current Land Ownership Law, ?Jordförvärvslagen 1979:230(JFL)?, are from 1979. The most recent review and adaptation of the law occurred in 2005. Its main purpose is to prevent a passive ownership of land in Sweden and to ensure that the land is actively worked.
Miljökonsekvenser av dagvattendamm i Skebäck, Örebro : en fallstudie hur miljöpåverkan av en dagvattendamm intill ett Natura 2000-område kan bedömas
Stormwater is surface runoff water that originates from precipitation or snowmelt and that on hardened surfaces prevents to infiltrate the ground. In city areas stormwater can consists of major amounts pollutants and when reaching a lake or watercourse it can cause damages on vegetation and animals. Therefore it is important to treat polluted stormwater before it reaches the recipient.
The municipality of Örebro have since the 90ies an extensive work with treatment of stormwater in sedimentation ponds. A new stormwater treatment project is planned in an industrial estate in Skebäck, Örebro.
Markberedningsresultat och plantbildning med såddaggregaten Humax 2-4 och KSM-såddskopa
Fördelarna med skogssådd är bland annat att de kan ge stamtäta bestånd med potential att producera träd med bra vedegenskaper och bättre utvecklade rotsystem samt att sådder har en högre biomassaproduktion per ytenhet jämfört med planteringar. Nackdelar som kan nämnas är att de ofta täta förbanden ger ökade kostnader vid eventuella röjningar och att föryngringsresultatet är mera osäkert för sådd än för plantering.Mekaniseringen av skogssådden startade under 1970-talet. Humax och KSM är två kranspetsmonterade aggregat för skogssådd. De har utvecklats för att användas på marker med svår ytstruktur där dragna såddaggregat som harv och högläggare har svårigheter att skapa tillräckligt mycket lämplig såddbädd på grund av att aggregatet inte kommer ner mellan hindren eller att basmaskinen inte klarat av att köra över hela arealen. Fördelen med KSM och Humax är att aggregaten är kranspetsmonterade vilket gör att föraren väljer var aggregatet skall markbereda och på det viset kan markberedningen göras mellan hindren samt att kranarmens räckvidd gör att basmaskinen inte behöver köra över hela arealen som skall markberedas.
Att restaurera forna tiders beståndsstruktur : ett exempel från Jämtgaveln
In Sweden today so-called "prescribed nature conservation burning" is performed due to the change in silvicultural law, certification and an increased knowledge regarding the field of fire in the forest landscape. The aim is to re-create structures and qualities made by the fire regimes of the past, though on a much smaller geographical scale. The structures and qualities to be re-created are for example broad leaf stands, trees with large diameter, heterogeneous stands regarding variables such as age and diameter. If we increase our knowledge of the constitution of forests characterized by fire, then we will be able to set goals for what achievements to reach both on landscape scale and stand scale.
The aim of this paper is to try to describe how a stand from the past was composed regarding mainly the spatial arrangement and compare it with the stand of today in the same place. This to be done by using relict material, that is stumps and dead standing trees.