Dead wood is important for many species. The amount of coarse dead wood (diameter >10 cm) is much lower in managed forest than in unmanaged forests. Stumps constitute the largest proportion of the volume of coarse dead wood in managed forests. Since stump harvest for biofuel may increase, the amount of dead wood will decrease even more, which may threaten biodiversity. The first aim of this study was to compare the amounts of fine woody debris (FWD, .

The objective of this work was to compare the environmentally gentle soil scarification technique Huminmix (with possibilities to do track-grinding/HMMspår, long-scraping/HMMlångfläck and mounding/HMMhög) with conventional disc trencher, concerning seedling establishment and growth of direct seeded and planted Scots pine seedlings. Inventories were made during June and July 2005, in 34 seeded and 6 planted stands from 2000 ? 2004 (1- 5 years old) of lichen- and myrtillus/vaccinum-type in Holmen Skog AB´s district Norsjö in Västerbotten. The Huminmix-technique had been used for HMMspår in the seeded stands and for HMMhög in the planted stands (HMMlångfläck has been used from the year 2006 for direct seeding). The studied stands had been seeded with the same amount of seeds according to stand data.

The Swedish boreal forests are limited by nitrogen (N) availability. While biological N2 fixation by cyanobacteria hosted by pleurocarpous feather mosses are important sources of N input to natural boreal forest ecosystems, little is known about the patterns of N2 fixation in silvicultural systems. This study investigates the biological N2 fixation rates of two boreal feather moss species (Pleurozium schreberi and Hylocomium splendens) along a chronosequence from clear-cut to mature forest, as well as the vegetation characteristics along the chronosequence. Measurements and samples were collected from 32 forest sites that were classified into four age classes (clear-cut, pre-commercially thinned, thinned and mature forest). The sites were located near the city of Arvidsjaur in northern Sweden.

Restrictions in nature conservations are increasing the influence of forest management. Nobel broadleaved forests are more influenced than other forests, because they are considered to be more valuable than other forest types in Skåne. There has been a lack of knowledge about the amount that is set-aside for nature conservation and what types of forest that is concerned. These are the main questions to be answered in this thesis. Moreover has the timber quality been compared between set-aside and non-set-aside areas since it affect the financial conditions for the forestry in nobel broadleved forests. The last asked question deals with the financial consequences of set-aside.

An excessive input of nutrients to lakes and other water bodies has created a problem with eutrophication in Sweden. Untreated, or partially treated, domestic sewage is a major source for discharge of phosphorus (P), which is the nutrient most frequently responsible for eutrophication of most fresh waters and the Baltic Sea. The waste water can be cleaned by filter materials, which have a high P-retention ability and which after saturation may be used as fertilizers. Four potentially suitable filter materials were tested in batch- and column experiments in this study. In the batch experiments, the following materials were shaken with waste water in time series ranging from 5 seconds to 60 minutes: coarse (1-4 mm) and fine (0-2 mm) Polonite® (heated bedrock from Poland); Filtralite® (light expanded clay aggregates with limestone added before burning); water cooled blast furnace slag (BF-slag) and BF-slag mixed with 10% burned limestone.

In today´s forestry, assessments of needs for thinning are based on basal area measurements. This is an indirect measurement. The approach and the developed assessment tables are based on an assumed production forest, which implies that management proposals in stands that deviate from the basic model may be misleading. Since Walter Bitterlich in 1948 launched the idea of the relascope, several modifications have been developed for different purposes. In common is that all are based on a certain angle measurement principle.

Det här examensarbetet på D-nivå har utförts i samarbete men företaget XM reality i Linköping. Företaget jobbar med att ta fram olika system inom området mixed reality, som på svenska översätts till förhöjd verklighet. Syftet med projektet var att utforma två olika handhållna projektorsystem. Produkterna skulle utformas för att passa in i sjukhusmiljö. Båda enheterna har samma funktion men innehåller olika komponenter. Produkterna är anpassade till en ny teknik som företaget har utvecklat.

Dead wood is important for many species. The amount of coarse dead wood (diameter >10 cm) is much lower in managed forest than in unmanaged forests. Stumps constitute the largest proportion of the volume of coarse dead wood in managed forests. Since stump harvest for biofuel may increase, the amount of dead wood will decrease even more, which may threaten biodiversity. The first aim of this study was to compare the amounts of fine woody debris (FWD, .

Since 1993 the Swedish Forestry Administration conducts a nation-wide inventory of wood-land key habitats covering all forest land in Sweden. The inventory aims at mapping and describing habitats where redlisted species occur or can be expected to occur. According to the inventory stand history is crucial to the presence of red-listed species. However, the current knowledge of stand history in woodland key habitats is very limited. The purpose of this work is to describe stand history in woodland key habitats, i.e. fire history, human activities - mainly cuttings - and structural changes.

Kan man få fram blandrabatter (mixed borders) som i sin växtkomposition fyller en kunds önskemål trots att man ståndortsanpassar växtvalet hårt?  Kundens önskemål kan vara: lättskött, friskt och härdigt växtmaterial, och vilken stil de har tänkt sig att rabatten ska ha..

Dead wood is important for many species. The amount of coarse dead wood (diameter >10 cm) is much lower in managed forest than in unmanaged forests. Stumps constitute the largest proportion of the volume of coarse dead wood in managed forests. Since stump harvest for biofuel may increase, the amount of dead wood will decrease even more, which may threaten biodiversity. The first aim of this study was to compare the amounts of fine woody debris (FWD, .

7 % of children in preschool have some sort of language disorder. How should preschool teachers best help these children? In a small special group where they can focus on the child´s individual linguistic development or in an ordinary group were the other children can be linguistic models for the child and help his or hers development?The purpose of this paper is to see what preschool teachers, who work with children who has language impairment, says about working with these children in a special group as compared with working with them in an ordinary group together with children without language impairment. What are the advantages and the disadvantages related to the different ways of working? Another focus point is how the children collaborate with each other.

Future climate changes may lead to an interest of alternative and foreign forest tree species in order to spread the risks in forestry. Douglas fir, Sitka spruce, Freemont cottonwood and hybrid aspen are examples of popular foreign tree species that along with western red cedar could have a future in the Swedish forests.Södra Skogsägarna and SLU have collaboration in establishment of foreign species in Swedish forests.The purpose of this study was to analyze and present the establishment of western red cedar, and to survey and illustrate injuries of freeze drying and other damages like deer browsing, vegetation and insect attacks. The study included four different provenances, and spruce as a reference, planted in two locations ? Asa and Släne.Western red cedar is despite its name a conifer of the cupressaceae family with defined secondary characteristic and gets along well with an overstory. Western red cedar grows often in Mixed stands with similar conifers and its natural habitat is within and in the area near to British Columbia.The study included two series of field inventories, one made in the summer and one in the autumn 2013, three growing seasons after plantation.

In 1970 professional boxing became illegal in Sweden and in 2009 the prohibition was removed.Just before both of these changes in the law there were debates in media where people argued forand against ilegalization. In the later debate the focus has shifted from professional boxing toinclude Mixed Martial Arts(MMA) as well. MMA was governed and bound by the same law asprofessional boxing.This purpose of this paper is to compare the debate in 1968-1969 with the debate in 2006. The twodebates resulted in two different outcomes, ilegalization of professional boxing in 1970 and thenlegalization of it 2009. Are there any reason for these differences? What is the reasoning behindthis? By using hegemonic masculinity as a guidance when examining the debates this paper istrying to understand how the discourse have changed over time.

Everyday life mobility of elderly people ? opportunities, restrictions and sustainable urban visions aim to examine and describe elderly people?s movement patterns, their opportunities and restrictions of reaching high mobility and accessibility, and their attitude towards various sustainable urban visions. This paper is based on an approach of time-space geography as it covers the topic of movements in time-space, explained and developed using the concepts of mobility and accessibility. To examine elderly people?s attitude towards sustainable urban visions, this paper also takes approach on theories such as New Urbanism, mixed-use and the compact city.The method used in the study is an interweaving of a time geographic diary and qualitative interviews, where the respondents are six retired people between 68 and 77 years old living in Gothenburg city.