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… 4 ? 6 years after soil scarification and data on the number of new established plants, their height growth as well as ground-line diameter was collected. Information about site conditions such as altitude, quarter exposure and frost risk was also collected. A review of previous …
… loop increases. It has therefore become even more important to safely reuse plant nutrients from human excreta to agricultural land. Partly because it increases the sustainability of society as the world's supply of many nutrients are finite, partly because it promotes human …
… has been classified using the ECD bioassay. The disease severity of infected plants was scored according to two different scales and the pathotype was determined according to three previously published guidelines. The results were compared to previous published studies …
… that works to reduce the flow of hazardous substances to Swedish treatment plants and to create a sustainable nutrient recycling. According to REVAQ, the yearly accumulating rate of metals should not exceed 0.2% in soil per year. Silver and bismuth are two metals that do not …
Källor till förhöjda halter i slam?
… that works to reduce the flow of hazardous substances to Swedish treatment plants and to create a sustainable nutrient recycling. According to REVAQ, the yearly accumulating rate of metals should not exceed 0.2% in soil per year. Silver and bismuth are two metals that do not …
… sites in the northern part of the River Klarälven by nine hydro-electric power plants. None of the hydro-electric power plants have fishways so that salmon migrating upstream or downstream may pass. In the current situation, the upward migrating salmon are caught in a fish trap …
… and other activities are connected. The wastewater is collected at treatment plants where a nutritious sludge is produced. The sludge does not only contain nutrients, but also hazardous substances originating from different activities in society. To reduce the flow of hazardous …
… vehicle fuels. The cost for upgrading biogas depends on the size of the biogas plant and its gas production. If the gas flow is low the cost will be high. However, further development of existing upgrading technologies or development of new ones, have good potential to decrease …
utvärdering och optimering av anläggningen och uppgradering av biogasen
… of optimizing the process and investigates whether investing in an upgrading plant would be a feasible and more cost-efficient option. The results show that the biogas plant is working well, although the production differs from the original plans. This shows in turn that …
a comparison between agroforestry and non-agroforestry
… to study was farms practicing agroforestry methods or not in intercropped plantain (cooking banana) fields. The hypothesis was that the practice of agroforestry leads to a higher concentration of SOC. Field work was conducted in Kkingo region, Masaka, Uganda. Ten farms, of which …
Arbetet om komplexa artrika planteringar handlar om hur man kan arbeta med en högre komplexitet och en högre artrikedom än vad vi är vana att se i urbana miljöer. Syftet med arbetet är att undersöka hur komplexa artrika planteringar kan användas i urbana miljöer. Benämningen …
gestaltning av en plantering i Gotlandsparken i Uppsala
… i 5 principer och en växtlista som kan vara vägledande vid växtval för planteringar som gynnar pollinerande insekter. Informationen från litteraturstudien tillämpades i ett gestaltningsförslag för en plantering i Gotlandsparken i Uppsala. Gestaltningsförslaget konkretiserar hur …
… in arable soil. The hypothesis tested was that crop had a main impact on plant-feeding nematodes, especially when a non-host crop was grown or a bare fallow was establish. The field trial in Önnestad was established in 1987 and includes 5 cropping systems (2 conventional and 3 …
… även hur tre svenska kommuner konstruerar sina växtbäddar när gatuträd ska planteras i hårdgjord miljö. Dessa kommuner är Stockholm, Göteborg och Malmö. I Sverige har man ännu inte hunnit dra några slutsatser av hur de olika tekniska lösningarna fungerar eftersom de inte har …
… få en helhet i resultatet. Vi har dels räknat på hur hög rotbiomassan är per planta, dels kring rotbiomassan per hektar i de olika leden, kvävehalt per planta samt räknat på kvävemängden per hektar. Den ovanjordiska biomassan har summerats och kvävehalten har bestämts. Dessutom …
