140 uppsatser · sida 1 av 10
does the area affect species number and composition?
Sand pits are a valuable habitat which can hold many sand living species including several endangered ones. As many sand habitats with exposed sand are declining, sand pits have a potential as a substitute habitat. This study was conducted to see what effect the area of a sand …
En undersökning av mötet mellan en byggd struktur och ett landskap i förändring
The Sand Catcher The thesis project The Sand Catcher investigates the encounter between permanent structures and an ever-changing landscape. The migrating sand dune Råbjerg Mile in northern Denmark is 40 meters high and moves more than 15 meters every year. By introducing a …
En kvantitativ studie om hur elever ser på sitt engagemang då de musicerar och undervisas på kulturskolan.
The Sand Catcher The thesis project The Sand Catcher investigates the encounter between permanent structures and an ever-changing landscape. The migrating sand dune Råbjerg Mile in northern Denmark is 40 meters high and moves more than 15 meters every year. By introducing a …
Film blir bok
The Sand Catcher The thesis project The Sand Catcher investigates the encounter between permanent structures and an ever-changing landscape. The migrating sand dune Råbjerg Mile in northern Denmark is 40 meters high and moves more than 15 meters every year. By introducing a …
Today 70 percent of the world's sand beaches are under recession due to erosion. The global warming may have the effect upon the sea level increasing and the erosion increasing on the sand beaches. To save these sand beaches, the erosion must be prevented. Coast erosion shelters …
studie av påverkande faktorer
… community of Kramfors has since 2003 had problems of fast clogging of the slow sand filters. As the clogging appears more often, they must be cleaned more frequently which has made the drinking water preparation difficult. Wintertime it has sometimes been impossible to clean the …
en studie kring naturgräsplaner i fotbollsarenor
… Hybridgräs kan användas med effekten av en större tolerans för slitage. Sand används oftast i växtbäddar då lerans aggregat förstörs och dräneringsförmågan är bättre i sand. Dränering är ett viktigt inslag för att få bort överskottsvatten, också luftning som behövs för att öka …
… (L.). Both species are dependent on disturbance requiring bare sand habitats, which vary both in time and space. The dispersal ecology of A. bimaculatusis poorly known. An increased understanding would be very beneficial to help explain the species abundance pattern and the …
… on Colletes cunicularius which are dependent on fine-grained, exposed sand in sunlit areas with Salix nearby. Gravel is a limited resource that today is replaced with crushed rock, this is a big problem for the beetles since the gravel pits are their primary habitat. The sand …
I förskolans utemiljö är det vanligt att det finns en sandlåda på gården. Den är centralt placerad och barnen är där och leker. Enligt den nya Skollagen och förskolans reviderade läroplan ska verksamhetens innehåll vila på vetenskaplig grund och beprövad erfarenhet. Detta gäller …
En studie om hur kaniner påverkar pH, mängden öppen sand och vegetation på en sandstäpp i sydöstra Skåne.
Sandstäpp, eller ”xeric sand calcareous grasslands”, är en starkt hotad naturtyp i Sverige. Sandstäpp hyser många unika och sällsynta växter som kräver bland annat högt pH-värde och uppbrutet vegetationstäcke. De största hoten mot sandstäppen är försurning och igenväxning. I …
Har dynmorfologi bildad under tidigare interstadialer bevarats i landskapet?
The aim of this study was to map the prevalence of aeolian sand dunes in Västerbotten, northern Sweden to find dunes formed during earlier deglaciation phases, which was then preserved in cold-based conditions during the youngest stadial of the Weichselian glaciation. These …
fallstudie i Värmdö kommun
… They include three systems that are being used today in Värmdö community; Sand filter systems, Local waste water treatment plant and Conection to large scale waste water treatment plant. Three other systems considered to have a good purifying potential have also been studied …
En undersökning av reningseffekt med avseende på järn och mangan
… The overall goal was to investigate how the parameters surface load,sandfractions, and burden time affect the purifying effect. The expectation is to optimize thedesign and find a demouldning of the filter that gives sufficient purifying with a highersurface load. As an attempt …
En pilotstudie vid Univates, Lajeado ? RS Brasilien
… the reducing of pollutants in waste water. This study focus on two substrate, sand with grain size of 0 - 3 mm and gravel with the grain size of 10 - 20 mm. To see the grain size reduces BOD, COD and nitrate best, the experiment used eight pilot scales SSF for leachate water …
