61 uppsatser · sida 1 av 5
biomass production, fallow deer preference and species diversity
… composition in six different crop mixes used for game fields affected the biomass production, biomass consumption and biological diversity at the Koberg estate in southwestern Sweden. Six experimental fields were used and each field contained six plots, approximately 1500 m2 …
forage production, utilization by ungulates and browsing on adjacent forest
… other attractive food resources. However, quantitative estimates of potential biomass production of various gamefield crops and browsing pressure on the surrounding forest have been lacking. Within the thematic research program ”Wildlife and Forestry” a three-year project was …
1. Kvickrotens reaktion på myllningsdjup, kvävemängd och kväveplacering i konkurrens med gröda. 2. Reducerad glyfosatanvändning på trädad åkermark :
… cm under the soil surface. After harvest the plant material was dried, and the biomass measured by weight. Both for couch grass and cereals the biomass produced above ground was measured. For couch grass the biomass of the underground plant parts (horizontal rhizomes and …
a study on production conditions and international competitiveness
… decrease the dependency on fossil fuels. This has led to an increased use of biomass in heat and power production. In some countries, the lack of forest resource has led to large scale power producers importing their biomass needs. Due to high energy content and homogeneity …
Fast pyrolysis is a method for converting biomass into three energy rich products: char, gas and bio-oil, where the latter is most interesting. Pyrolysis is an endothermic process where biomass is heated in an anaerobic environment and, with the right operating conditions, up to …
… species, which game species that utilize the resource and to estimate how much biomass a field of rapeseed can produce. The goal was also to investigate the impact of grazing on broadleaved trees and shrubs which grows in the forest close to the game field in distances from 0 to …
… between different interest groups.This study investigated the potential biomass production and utilisation of marrow-stem kale (Brassica oleracea var. medullosa), at game fields in Misterhult, Sweden, as well as browsing effects on adjacent forests. The study included nine game …
… percentage renewable energy sources to 20 %. To reach this goal an increase of biomass production needs to be made. One way of achieving this is by using nonnative species. Poplar in Sweden produces biomass faster than the domestic trees. In the southern parts of Sweden …
a possibility to reduce nutrient levels and produce commercially interesting metabolites
… This offers the possibility to grow algae for nutrient reduction and use the biomass for energy or animal feed since many alga species has a good nutritional value. Approximately 800-1000 m3 water is applied per 1000 m2 of greenhouse area during one season in a tomato …
… after local circumstances. One way is to construct production wetlands where biomass in form of plants is harvested to remove nutrients. In order to get the best possible decrease of eutrophication, production wetlands should be constructed on a large scale. Often flooded areas …
… herbs), combined from 1-12 species were investigated. The aboveground biomass was harvested in mid-August 2002. In late October the soil was sampled and collected for analyses in the laboratory. Plant diversity and composition play an important role for nitrogen cycling in soil …
… with many benefits, for example its ability to establish a large quantity of biomass in one year. Hemp is easy to grow and out-competes unwanted weeds through its aggressive growth pattern without the need for pesticides. Interest in growing hemp and other energy crops is …
… is, in a scientific point of view, lacking when it comes to harvesting for biomass energy. Within the next decades it is expected that 280 000 hectares of lodgepole pine will have reached thinning age on the domains of Svenska Cellulosa Aktiebolaget (SCA). Due to this the …
en teknisk och ekonomisk utredning
… to find a suitable system for the integration, different methods for drying biomass and existing pellet production plants have been studied. Eight different alternatives (two production capacities, two pressures of drying steam and two drying systems) have been evaluated based …
… hydrolyse. The technology of the process is based of hydrolysation of biomass (hemicelluloses and cellulose) to sugar and extract it to ethanol. These two techniques will compare with each other to determine which of them that it’s more suitable for ethanol production. Also a …
