| 1. |
- Olausson, Inger, 1969-
(författare)
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Market gardens in Sweden 1900-1950 with four case studies from Stockholm County
- 2015
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Ingår i: ISHS Acta Horticulturae 1108XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): V International Conference on Landscape and Urban Horticulture and International Symposium on Sustainable Management in the Urban Forest. - : International Society for Horticultural Science. - 9789462611023 ; 1108, s. 123-129
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- The links between market gardens and cities were symbiotic until the mid-1900s. In my thesis about market gardens in Sweden 1900-1950, four market gardens in Stockholm County are investigated, trying to find out how different resources and strategies contributed to the businesses competitiveness. Two of the market gardens belonged to mansions with all the staff employed. The other two were established as family businesses by entrepreneurs without employees. Garden products are sensitive to bumps, heat, low temperatures, etc. Due to this, the access to a nearby market was necessary at that time. The development of the trade with garden products was linked to a fast-growing population in the cities, the growing demand for garden products, and the development of the transport sector. From the growing city, gardeners bought horse manure, garbage, or anything that produced heat to the hotbeds when it decomposed. Most of the market gardens were small family businesses situated on small plots. In the 1930s and 1940s in 75% of the businesses a maximum of three people were engaged. The production was both resource-demanding and labour-intensive. The use of hotbeds and greenhouses extended the growing season and made it possible to grow all year around. The gardenerRSQUOs dependence on merchandises increased like an avalanche to beat the growing competition on the market. The import, often of high quality products, was growing very fast and affected the interest for garden products. It forced the domestic horticulture industry to increase the quality and effectiveness of the production.
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| 2. |
- Alsanius, Beatrix, et al.
(författare)
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Concept based mapping as a tool to disentangle biological properties and interactivities in research on growing media and hydroponics
- 2024
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Ingår i: Acta Horticulturae. - 0567-7572 .- 2406-6168. ; , s. 163-174
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Konferensbidrag (refereegranskat)abstract
- The cascading use of valorized constituents from societal side-streams in growing media (GM), but also the reuse of growing media, has brought increased attention to their biological properties and processes. These processes are complex, dynamic and interconnected. They are a result of the origin and treatment in previous steps of the cascading use as well as in the re-use. Furthermore, they are affected by physical and chemical characteristics in the GM and in the environment that they are exposed to. Thus, the complexity of factors and events shapes the outcome of research studies as well as product development and the manner how such outcome may be interpreted and how manufacturing processes and product quality can be standardized. In addition, the recent development of high-throughput methods for culture independent description of microbial community composition, gathering a copious volume of data, increases the level of complexity even more. To draw clear-cut conclusions on biological characteristics, processes and dynamics in GM, this complex picture needs to be disentangled, a process that already has to be in place at the early step of the study, process or product design. Based on three examples, we describe the power of conceptbased mapping to disentangle biological properties and interactivities in research and product development of GM and hydroponics and show its potential for big data analysis and modeling.
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| 3. |
- Nkurunziza, Libére, et al.
(författare)
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Socio-ecological factors determine crop performance in agricultural systems
- 2020
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Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 10
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Tidskriftsartikel (refereegranskat)abstract
- Agricultural production systems are affected by complex interactions between social and ecological factors, which are often hard to integrate in a common analytical framework. We evaluated differences in crop production among farms by integrating components of several related research disciplines in a single socio-ecological analysis. Specifically, we evaluated spring barley (Hordeum vulgare, L.) performance on 34 farms (organic and conventional) in two agro-ecological zones to unravel the importance of ecological, crop and management factors in the performance of a standard crop. We used Projections to Latent Structures (PLS), a simple but robust analytical tool widely utilized in research disciplines dealing with complex systems (e.g. social sciences and chemometrics), but infrequently in agricultural sciences. We show that barley performance on organic farms was affected by previous management, landscape structure, and soil quality, in contrast to conventional farms where external inputs were the main factors affecting biomass and grain yield. This indicates that more complex management strategies are required in organic than in conventional farming systems. We conclude that the PLS method combining socio-ecological and biophysical factors provides improved understanding of the various interacting factors determining crop performance and can help identify where improvements in the agricultural system are most likely to be effective.
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| 4. |
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| 5. |
- Bligård, Lars-Ola, 1976, et al.
(författare)
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CCPE – the use of an analytical method to evaluate safety and ergonomics in maintenance of forest machinery
- 2019
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Ingår i: Australian Forestry. - : Informa UK Limited. - 0004-9158 .- 2325-6087. ; 82:1, s. 29-34
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Tidskriftsartikel (refereegranskat)abstract
- Many of the hazards in forestry are due to the handling of large trees and large machinery in rough terrain and remote areas. Activities such as maintenance and repair work have been identified as especially hazardous in the highly mechanised cut-to-length method. Accidents are underreported, which emphasises the need for a systematic approach for accident prevention. A possible procedure is the use of an analytical evaluation method to identify presumptive hazardous situations and ergonomic issues before accidents can occur. Safety-critical sectors such as nuclear power and health care have invested many resources in these types of methods. The aim of this paper is to put one of those methods to test in a forestry context in a study evaluating maintenance of forest machinery. A framework for evaluation, Combined Cognitive and Physical Evaluation, known as CCPE, was selected and adapted for the study. The evaluation was successful in systematically predicting what could happen in hazardous situations with regard to use error and ergonomic issues.
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| 6. |
- Björklund, Anna, et al.
(författare)
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Planning Biodegradable Waste Management in Stockholm
- 1999
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Ingår i: Journal of Industrial Ecology. - 1088-1980 .- 1530-9290. ; 3:4, s. 43-58
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Tidskriftsartikel (refereegranskat)abstract
- The environmental impact of the management of biodegradable waste in Stockholm, based mainly on incineration and landfilling, was compared to systems with significant nutrient recycling; large-scale composting, anaerobic digestion, and separate collection and utilization of urine. The systems' emissions, residual products, energy turnover, and resource consumption were evaluated from a life-cycle perspective, using a computerized model, ORWARE (ORganic WAste REsearch model). Transportation was of relatively low importance to overall environmental impact, even at high rates of nutrient recycling. This is remarkable considering the geographical setting of Stockholm, with high population density and little nearby farmland. Ancillary systems, such as generation of electricity and district heating, were crucial for the overall outcome. Increased recycling of nutrients in solid biodegradable waste in Stockholm can reduce net environmental impact, whereas separation of human urine to be spread as fertilizer cannot yet be introduced without increased acidification. Increased nutrient recycling from solid biodegradable waste inevitably increases spreading of metals on arable land. Urine is by far the least contaminated residual product. Spreading of all other residuals would be limited by their metal content.
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| 7. |
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| 8. |
- Malmborg, Katja, 1988-, et al.
(författare)
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Knowledge co-production in the Helge å catchment : a comparative analysis
- 2022
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Ingår i: Ecosystems and People. - : Informa UK Limited. - 2639-5908 .- 2639-5916. ; 18:1, s. 565-582
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Tidskriftsartikel (refereegranskat)abstract
- Addressing sustainability challenges in landscape management requires processes for co-producing usable knowledge together with those who will use that knowledge. Participatory futures methods are powerful tools for attaining such knowledge. The applications of such methods are diverse and understanding the intricacies of the knowledge co-production process is important to further develop these research practices. To improve participatory futures methods and contribute to systematic and critical reflections on methodology, we present a comparative analysis of four research projects that applied participatory futures methods in the same study area. Conducted between 2011 and 2020, these projects aimed to co-produce knowledge about the future provision of ecosystem services in the Helge a catchment area in southern Sweden. For structuring the post-hoc, self-reflexive analysis, we developed a framework dividing the knowledge co-production process into three dimensions: settings, synthesis and diffusion. We based the analysis on documentation from the projects, a two-step questionnaire to each research team, a workshop with co-authors and interviews with key participants. The comparison highlights steps in project decision-making, explicit and implicit assumptions in our respective approaches and how these assumptions informed process design in the projects. Our detailed description of the four knowledge co-production processes points to the importance of flexibility in research design, but also the necessity for researchers and other participants to adapt as the process unfolds.
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| 9. |
- Andersson, Erik, et al.
(författare)
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Ambio fit for the 2020s
- 2022
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Ingår i: Ambio. - : Springer Nature. - 0044-7447 .- 1654-7209. ; 51:5, s. 1091-1093
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Tidskriftsartikel (refereegranskat)
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| 10. |
- Bengtsson, Peter, 1974-, et al.
(författare)
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Evaluation of hydrocarbon emissions from heart- and sapwood of Scots pine using a laboratory-scale wood drier
- 2004
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Ingår i: Holzforschung. - : Walter de Gruyter. - 1437-434X .- 0018-3830. ; 58:6, s. 660-665
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Tidskriftsartikel (refereegranskat)abstract
- The subject of study is the emission of Volatile Organic Compounds (VOC) during the drying of wood. Heartwood and sapwood from Scots pine were dried at different temperatures (50, 70 and 90°C) in a laboratory kiln. The sampling method, Solid Phase Microextraction was used to collect the different volatile organic compounds during the drying. The gas chromatograph and mass spectrometer was used to identify and quantify the organic matter. The total hydrocarbons were measured with a flame ionization detector. Primarily, different monoterpenes were released during the drying process. 3-carene and α-pinene were most common and were also analytically quantified. The diterpene, pimaral, was found in an estimated large amount in the later stage of the drying process but was not exactly quantified. Large differences in both release behaviour and total amount of released hydrocarbon between heart- and sapwood were obtained. Emissions of VOC from heartwood were of a magnitude approximately three times higher than that from sapwood.
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