| 1. |
- Johnsson, Anna-Ida, et al.
(författare)
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Specific SCAR markers and multiplex real-time PCR for quantification of two Trichoderma biocontrol strains in environmental samples
- 2011
-
Ingår i: BioControl. - : Springer Science and Business Media LLC. - 1386-6141 .- 1573-8248. ; 56, s. 903-913
-
Tidskriftsartikel (refereegranskat)abstract
- Several strains from the genus Trichoderma (Ascomycetes, Hypocreales) are commercially used as biocontrol agents, e.g. in formulations containing the two Trichoderma strains IMI206039 (Hypocrea parapilulifera B.S. Lu, Druzhinina & Samuels) and IMI206040 (T. atroviride P. Karst). To quantify the presence of the two isolates after application, we developed primers for SCAR markers (Sequence-Characterised Amplified Region). In order to quantify both fungal strains simultaneously, we also designed fluorophore-labelled probes distinguishing the two strains, to be used in combination with the SCAR primers. In incubations of two different soils, artificially inoculated and maintained under controlled conditions, the quantification through amplification with the SCAR markers in qPCR and through colony-forming units from plate counting correlated well. Further tests of the markers on samples taken from a golf green treated with a product containing both strains indicated that the two biocontrol strains did not establish, either on the golf green or in the surrounding area.
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| 2. |
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| 3. |
- Von Rosen, Dietrich
(författare)
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Non-negative estimation of variance components in heteroscedastic one-way random-effects ANOVA models
- 2010
-
Ingår i: Statistics. - : Informa UK Limited. - 0233-1888 .- 1029-4910. ; 44, s. 557-569
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Tidskriftsartikel (refereegranskat)abstract
- There is a considerable amount of literature dealing with inference about the parameters in a heteroscedastic one-way random-effects ANOVA model. In this paper, we primarily address the problem of improved quadratic estimation of the random-effect variance component. It turns out that such estimators with a smaller mean squared error compared with some standard unbiased quadratic estimators exist under quite general conditions. Improved estimators of the error variance components are also established.
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| 4. |
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| 5. |
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| 6. |
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| 7. |
- Skovsgaard, Jens Peter
(författare)
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Bog om tarmvridrøn
- 2013
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Ingår i: Skoven. - 0106-8539. ; 45, s. 551-551
-
Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Book review N. Mayer & R.T. Klumpp (ed.) 2013: Elsbeere in Österreich – Monographie. Verein zur Erhaltung, Pflege und Vermarktung der Elsbeere - Genussregion Wiesenwienerwald Elsbeere, Michelbach.
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| 8. |
- Messing, Ingmar
(författare)
-
Land and land use : Natural preconditions
- 2011
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Ingår i: Agriculture and Forestry in Sweden since 1900- a cartographic description. - 9789187760617 ; , s. 14-22
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 9. |
- Messing, Ingmar
(författare)
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Marken i Sverige : Naturliga förutsättningar
- 2011
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Ingår i: Sveriges nationalatlas. Jordbruk och skogsbruk i Sverige sedan år 1900: en kartografisk beskrivning. - 9789187760594 ; , s. 14-22
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 10. |
- Tunon, Håkan, et al.
(författare)
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Kulturarv och hållbar utveckling
- 2010
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Ingår i: Bebyggelsehistorisk tidskrift. - : Föreningen Bebyggelsehistorisk tidskrift. - 0349-2834 .- 2002-3812. ; , s. 99–106-
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 11. |
- Thulin, Carl-Gustaf
(författare)
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Utsättning av arter : möjlighet för bevarandebiologin
- 2010
-
Ingår i: Biodiverse. - 1401-5064. ; 15, s. 8-9
-
Tidskriftsartikel (populärvet., debatt m.m.)abstract
- Ett halvöppet, lövträdsdominerat landskap med betande hjortdjur, visenter, förvildad nötboskap och vildsvin, jagade av livskraftiga populationer av varg, björn och lo. Utopier och vilda fantasier? Kanske i delar, men något håller definitivt på att hända med bevarandet, återskapandet och skötseln av de europeiska vildmarkerna
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| 12. |
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| 13. |
- Norman, Johan
(författare)
-
Skogen – en plats för upplevelser
- 2011
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Ingår i: Grön Entreprenör, Naturupplevelse och hälsa – forskningen visar vägen. - 9789157690364 ; , s. 62-75
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Bokkapitel (populärvet., debatt m.m.)
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| 14. |
- Palsdottir, Anna Maria, et al.
(författare)
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Nature-Based Therapeutic Interventions
- 2011
-
Ingår i: Forests, Trees and Human Health. - Dordrecht : Springer Netherlands. - 9789048198054 ; , s. 309-342
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 15. |
- Salomon, Björn, et al.
(författare)
-
Evolutionary process of Hordeum brachyantherum 6x and related tetraploid species revealed by nuclear DNA sequences
- 2009
-
Ingår i: Breeding Science. - : Japanese Society of Breeding. - 1344-7610 .- 1347-3735. ; 59, s. 611-616
-
Tidskriftsartikel (refereegranskat)abstract
- A hexaploid form of Hordeum brachlyantherum ssp. brachyantherum was discovered in California in 1980, and its origin has since been studied over the past three decades. We applied EF-G, a nuclear DNA sequence, to infer the parents of the hexaploid form. In polyploid taxa, amplified DNAs were cloned into a vector, and EF-G copies were amplified from the colonies by PCR and digested with restriction enzymes to separate different types. Phylogenetic analysis was performed based on the DNA sequences. The result showed that H. brachyantherum ssp. brachyantherum 6x and 4x carried one identical DNA sequence of 910 bp, and had closely related DNA sequences of 931 bp. H. brachyantherum ssp. brachyantherum 6x and H. marinum ssp. gussoneanum 2x shared one identical DNA sequence of 915 bp. From these results we hypothesized that H. brachyantherum ssp. brachyantherum 6x has evolved by an outcrossing between H. marinum ssp. gussoneanum 2x and H. brachyantherum ssp. brachyantherum 4x, followed by a chromosome doubling. Our results also indicate that H. marinum was involved in the polyploidization of H. secalinum, H. capense, and H. marinum. The origins of H. jubatum and H. depressum are discussed.
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| 16. |
- Messing, Ingmar, et al.
(författare)
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Bygg inte på kultur- och åkermark
- 2009
-
Ingår i: Upsala nya tidning. - Uppsala. - 1104-0173. ; :2 maj, s. 4-
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Tidskriftsartikel (populärvet., debatt m.m.)
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| 17. |
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| 18. |
- Messing, Ingmar, et al.
(författare)
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Rovdrift på åkermark i Uppsala
- 2012
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Ingår i: Upsala nya tidning. - 1104-0173. ; , s. 5-
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Annan publikation (populärvet., debatt m.m.)
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| 19. |
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| 20. |
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Degraded and restituted towns in Poland: Origins, development, problems : Miasta zdegradowane i restytuowane w Polsce. Geneza, rozwój, problemy
- 2015
-
Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- One of the less known problems in settlement geography is the issue of so-called degraded and restituted towns. This lack of reconnaissance, however, is perhaps less the result of the towns’ scarcity than their specificity of being ‘awarded’ or ‘deprived of’ an urban label by means of strictly socio-political actions. Degraded and restituted towns, hence, are spatial units made ‘urban’ or ‘rural’ instantaneously, irrespective of their de facto state along what is widely considered a gradual path of (de)urbanization. Instead, they become compartmentalized into two constructed spatial categories that have survived the onslaught of material transformations and philosophical repositioning through different whims of time. While ‘rural’ and ‘urban’ are conceptual binaries that certainly need to be treated with caution, their cultural salience may cause tangible consequences within national administrative systems that abide by a formalized rural-urban distinction. This issue becomes particularly important for settlements that clearly transcend any imagined rural-urban divide, i.e. those, whose material and immaterial characteristics seem counterfactual to their assigned category. It is also crucial in formal practices designed to avert such counterfactualities, but whose ran-domness of approach more creates confusion than helps straighten out a historical concoction. Both processes, nonetheless, lend ‘urbanity’ and ‘rurality’ a resonance of objectivity, justifying their use as guides for a host of developmental endeavors, despite subverting a much more intricate reality. Degraded and restituted towns are direct derivatives of this. Drawing on the above-mentioned irreconcilabilities, the aim of this book is to present and scrutinize degraded and restituted towns through the example of Poland, where these towns occupy a special niche. For one, Poland, due to its chequered and variegated history, is home to a conspicuously large number of degraded (831) and restituted (236) towns; for another, Poland’s relentlessness of formalizing ‘urbanity’ as a category of statistical, political and cultural guidance has a direct bearing on the lives of the towns’ residents. Realizing the intricacy of degraded and restituted towns in the face of commonplace ru-ral-urban ideations, the editors and the 17 contributing Authors of this book have made an effort to capture the towns’ complexity with special foci on their shrouded origins, developmental specificity and incurred problems. Owing to the involvement of researchers from different scientific disciplines and subdisciplines, the undertaken project has helped elucidate the problem from multiple perspectives: spatial, social, demographic, economic, environmental, historical, architectural, cultural, legal and philosophical. Allocated into 17 chapters, not only have the presented interpretations allowed for a first interdisciplinary synthesis on the topic, but they also helped outline some prospective directions for future research. Moreover, collecting materials of such diversity into an amalgamated whole has helped identify specific discourses that enwrap the concept of “urbanity” when seen through its oscillations within formal contexts, and to which degraded and restituted towns serve as expendable game pieces. By combining knowledge arrived at through ontologically and epistemologically different approaches, the incremental contribution of this book as a whole could be summarized in two attainments: a) extending theoretical frameworks used to study degraded and restituted towns in terms of definition, conceptualization and assessing predispositions for future de-velopment on account of their spatial, legal, socio-economic and historical charac-teristics; b) initiating an anticipated discussion on a number of important and current topics re-lated to the practices of degradation and restitution that have not received adequate attention, e.g., the urbanity-vs.-rurality paradox, the changeability of human settlement forms vs. the consequences of rigid spatial categorizations; the role of various actors in shaping the socio-economic reality under the guise of an ossified binary; or identifying spatio-conceptual conflicts as future challenges for local, regional and national policy.
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| 21. |
- Fredman, Peter, et al.
(författare)
-
Economic values in the Swedish nature-based recreation sector : a synthesis
- 2012
-
Ingår i: Tourism Economics. - London : IP Publishing. - 1354-8166 .- 2044-0375. ; 18:4, s. 903-910
-
Forskningsöversikt (refereegranskat)abstract
- This research synthesis reports the main findings from a review of economic values associated with nature-based recreation in Sweden. The purpose of the work was to support policy and to identify areas for future research. Data came from over 150 scientific publications and other public sources. The authors find inter alia a lack of systematic data for several recreation activities (including naturebased tourism), a significant growth in the outdoor equipment industry and a relatively modest economic involvement by the public sector. The information is structured under different categories to illustrate the significance and range of different economic values. The authors conclude that there is a need for more comprehensive and systematically collected data, methodological development and interdisciplinary research.
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| 22. |
- Linner, Harry, et al.
(författare)
-
Agricultural land needs protection
- 2011
-
Ingår i: NJF Report. - 1653-2015. ; 7, s. 29-34
-
Annan publikation (övrigt vetenskapligt/konstnärligt)
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| 23. |
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| 24. |
- Messing, Ingmar, et al.
(författare)
-
Viktig åkermark hotas
- 2010
-
Ingår i: Upsala nya tidning. - 1104-0173.
-
Tidskriftsartikel (populärvet., debatt m.m.)
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| 25. |
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| 26. |
- Boman, Mattias, et al.
(författare)
-
Kitesurfing
- 2011
-
Ingår i: Friluftssport och Äventyrsidrott: Utmaningar för lärare, ledare och miljö i en föränderlig värld. - 9789144069135 ; , s. 194-199
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 27. |
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| 28. |
- Tenngart, Carina, et al.
(författare)
-
Patients' experiences and use of a therapeutic garden: from a designer's perspective
- 2010
-
Ingår i: Schweizerische Zeitschrift Für Forstwesen = Swiss Forestry Journal. - : Swiss Forestry Society. - 0036-7818. ; 161, s. 104-113
-
Tidskriftsartikel (refereegranskat)abstract
- The object of this study is to broaden our knowledge on how a therapeutic landscape is used and experienced by its patients. Data refer to qualitative, semi-structured and hour-long interviews with ten patients in a Swedish healing garden. All patients have stress-related diseases and are participants in a rehabilitation programme with nature-assisted therapy. A thematic analysis resulted in two main themes: “to escape, observe and get sensory stimulation” and “to achieve satisfaction, socialize and re-evaluate”, with two and three sub-themes respectively. To grasp both the experience and the use, the themes are described both as phenomena and in relation to where they occur. The experiences described and how they might be aspects of healing, as well as the need to include a perspective related to this process in the design of therapeutic settings, is elaborated on in the discussion. Aspects of results in the thematic analysis are discussed with relation to design and theories in environmental psychology and can be seen as a kind of evaluation of the design of the garden. Also discussed is how this information can be used to contribute to a more evaluation-based knowledge in the design of therapeutic settings.
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| 29. |
- Gallardo Fernández, Gloria L.
(författare)
-
From Seascapes of Extinction to Seascapes of Confidence : Territorial Use Rights in Fisheries in Chile: El Quisco and Puerto Oscuro
- 2008
-
Bok (övrigt vetenskapligt/konstnärligt)abstract
- In Chile, the indiscriminate harvest for export of the edible shellfish, Concholepas concholepas or false abalone, propelled by a neo-liberal market economy during the 1970s, almost led to the extinction of the species, thereby threatening the dependant small-scale artisan fishers’ survival as well as the ecosystem. To reverse this, fishers’ organizations in Chile have adopted the state created regulatory measure, Management and Exploitation Areas for Benthic Resources (MEABR; locally known as Management Areas -- MAs). Replacing the former unsuccessful fishing regulatory measurements, the MEABR regime empowers the fishers with exclusive territorial use rights (TURF) to manage the species, often under commons institutions, thus creating new seascapes of confidence. However, as is often the case with new solutions, emergent problems are posed that threaten to undermine the reform. With the new regulated extraction measure and geographical expansion of this novel labour and production alternative, fishers experience a transition from ‘nomadic’ to sedentary fishing leading to a transformation of their lifestyle and skills. If MAs become permanent, fishing in rural areas may lead to tensions as the fishers settle on coastal lands without entitlement, or are hindered from developing their own fisheries infrastructure. The legal system does not seem to fully foresee the consequences of the reform, and prevailing power relations and private property rights work to disadvantage the fishers. Using a participatory approach for the first research location of El Quisco (Valparaíso Region), and interviews with key informants for the second research location of Puerto Oscuro (Coquimbo Region), fishers’ views of the Chilean TURF were evaluated. How fishers perceive this experience should be central for the success or failure of the MAs as a viable alternative to the earlier conditions of open access. While the assessment of El Quisco deals more with the performance of the MA, Puerto Oscuro is used to portray the seascapes of conflict that have emerged as ownership of the coastal land is contested. The study shows that while the reform has brought better incomes from the benthic resources, the overall economic importance of the MAs for the fishers is reduced relative to the incomes coming from fishing activities realized outside the MAs. Experiences in both cases have been otherwise positive in terms of the recuperation of the species, ecological concerns and strengthening fishers’ so-called soft assets. Nevertheless, many problems remain, among them the problem of access to the sea border and those related to ambiguous land rights to support coastal settlement and fishing infrastructure development.
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| 30. |
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| 31. |
- Gren, Ing-Marie, et al.
(författare)
-
Policy design for a multifunctional landscape
- 2010
-
Ingår i: Regional Environmental Change. - : Springer Science and Business Media LLC. - 1436-3798 .- 1436-378X. ; 10:4, s. 339-348
-
Tidskriftsartikel (refereegranskat)abstract
- Landscapes consisting of several elements, such as wetlands and forests, are multifunctional in nature and produce both market and non-market goods. The need for policies arises from the existence of non-market ecosystem services that are not traded and thereby generally not subject to economic trade-offs in landowner decision making. An efficient incentive scheme for producing both types of goods would require policy designed for each non-market good. However, this may result in high transaction costs, possibly giving second-best solutions a comparative advantage when only one non-market good is regulated. This paper demonstrates that in the Hovran catchment area in mid Sweden, which produces the non-market goods water quality, biodiversity, and scenic beauty, compensation payments for biodiversity production alone provide almost maximum total net value of all market and non-market goods. On the other hand, payments for providing scenic beauty in the form of open landscape may result in lower total net value than no compensation payment at all, due to a negative impact on water quality.
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| 32. |
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| 33. |
- Jensen, Anna M, et al.
(författare)
-
Shrubs protect oak seedlings against ungulate browsing in temperate broadleaved forests of conservation interest: A field experiment
- 2012
-
Ingår i: Forest Ecology and Management. - : Elsevier BV. - 0378-1127 .- 1872-7042. ; 266, s. 187-193
-
Tidskriftsartikel (refereegranskat)abstract
- In many oak-rich temperate broadleaved forests of conservation value, high ungulate browsing pressure restricts oak regeneration. We examined the protection of oak (Quercus sp.) seedlings from browsing provided by naturally occurring shrubs in 10 forests across southern Sweden over 3 years. We planted oak seedlings in four plots in each forest; two with naturally regenerated shrubs and two with no shrubs. Ungulate browsers were excluded from two plots at each site, one with and one without shrubs. Fencing provided the best protection against ungulate browsers for the seedlings. The probability of a seedling being browsed (browsing frequency) was approximately 20% units lower for individuals growing among shrubs than for individuals growing in the absence of shrubs. When browsing did occur, the intensity (measured as a reduction in height growth) was significantly lower for seedlings in shrubs. Regression analyses showed that browsing frequency increased on seedlings in tall shrubs, and decreased on seedlings that had been browsed previously. Browsing intensity decreased if the seedling grew in tall and dense shrubs. Browsing frequency and intensity increased on oak seedlings that over topped the shrub canopy. Increased abundance of the prickled Rubus idaeus and Rubus fruticosus coll. in plots with shrubs did not affect browsing frequency and intensity. Two and a half years after planting, oak seedling mortality increased by the presence of shrubs. Although shrubs restricted oak seedling growth, we conclude that shrubs initially facilitated oak regeneration by concealment, and subsequently by numeric dilution. Shrubs may be used to reduce browsing damages if long-term evaluation indicates a net positive outcome for oak survival and growth.
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| 34. |
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| 35. |
- Ranius, Thomas, et al.
(författare)
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Development of tree hollows in pedunculate oak (Quercus robur)
- 2009
-
Ingår i: Forest Ecology and Management. - : Elsevier BV. - 0378-1127 .- 1872-7042. ; 257, s. 303-310
-
Tidskriftsartikel (refereegranskat)abstract
- Many invertebrates, birds and mammals are dependent on hollow trees. For landscape planning that aims at persistence of species inhabiting hollow trees it is crucial to understand the development of such trees. In this study we constructed an individual-based simulation model to predict diameter distribution and formation of hollows in oak tree populations. Based on tree ring data from individual trees, we estimated the ages when hollow formation commences for pedunculate oak (Quercus robur) in southeast Sweden. At ages of about 200-300 years, 50% of the trees had hollows. Among trees < 100 years old, less than 1% had hollows, while all > 400-year-old trees had hollows. Hollows formed at earlier ages in fast-growing trees than in slow-growing trees, which may be because hollows are formed when big branches shed, and branches are thicker on fast-growing trees in comparison to slow-growing trees of the same age. The simulation model was evaluated by predicting the frequency of presence of hollows in relation to tree size in seven oak stands in the study area. The evaluation suggested that future studies should focus on tree mortality at different conditions. Tree ring methods on individual trees are useful in studies on development of hollow trees as they allow analysis of the variability in time for hollow formation among trees. (C) 2008 Elsevier B.V. All rights reserved.
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| 36. |
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| 37. |
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| 38. |
- Lode, Elve
(författare)
-
Introduction
- 2011
-
Ingår i: Forest management and the Water Cycle. An Ecosystem-Based Approach. ; :212, s. 333-334
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 39. |
- Lode, Elve
(författare)
-
Typological Up-Scaling of Wooded Peatlands
- 2011
-
Ingår i: Forest Managemnt and the Water Cycle. An Ecosystem-Based Approach. - 9789048198337 ; :212, s. 471-496
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 40. |
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| 41. |
- Andersson-Sköld, Yvonne, et al.
(författare)
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A framework for assessing urban greenery's effects and valuing its ecosystem services
- 2018
-
Ingår i: Journal of Environmental Management. - : Academic Press. - 0301-4797 .- 1095-8630. ; 205, s. 274-285
-
Tidskriftsartikel (refereegranskat)abstract
- Ongoing urban exploitation is increasing pressure to transform urban green spaces, while there is increasing awareness that greenery provides a range of important benefits to city residents. In efforts to help resolve associated problems we have developed a framework for integrated assessments of ecosystem service (ES) benefits and values provided by urban greenery, based on the ecosystem service cascade model. The aim is to provide a method for assessing the contribution to, and valuing, multiple ES provided by urban greenery that can be readily applied in routine planning processes. The framework is unique as it recognizes that an urban greenery comprises several components and functions that can contribute to multiple ecosystem services in one or more ways via different functional traits (e.g. foliage characteristics) for which readily measured indicators have been identified. The framework consists of five steps including compilation of an inventory of indicator; application of effectivity factors to rate indicators' effectiveness; estimation of effects; estimation of benefits for each ES; estimation of the total ES value of the ecosystem. The framework was applied to assess ecosystem services provided by trees, shrubs, herbs, birds, and bees, in green areas spanning an urban gradient in Gothenburg, Sweden. Estimates of perceived values of ecosystem services were obtained from interviews with the public and workshop activities with civil servants. The framework is systematic and transparent at all stages and appears to have potential utility in the existing spatial planning processes.
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| 42. |
- Andersson, Kjell, 1956-2014, et al.
(författare)
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Limited GIS skills hamper spatial planning for green infrastructures in Sweden
- 2022
-
Ingår i: Geografiska Notiser. - : Geografilärarnas Riksförening. - 0016-724X. ; 80:1, s. 16-35
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The term green infrastructure captures the need to conserve biodiversity and to sustain landscapes’ different ecosystem services. Maintaining green infrastructures through protected areas, management and landscape restoration requires knowledge in geography, spatial data about biophysical, anthropogenic and immaterial values, spatial comprehensive planning, and thus geographical information systems (GIS). To understand land use planning practices and planning education regarding GIS in Sweden we interviewed 43 planners and reviewed 20 planning education programmes. All planners used GIS to look at data but did not carry out spatial analyses of land covers. BSc programmes included more GIS than MSc programmes but very few taught analyses for spatial planning. As key spatial planning actors, municipalities’ barriers and bridges for improved GIS use for collaborative learning about green infrastructures are discussed. A concluding section presents examples of how GIS can support spatial planning for green infrastructures.
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| 43. |
- Salomon, Björn
(författare)
-
The origin of the H, St, W, and Y genomes in allotetraploid species of Elymus L. and Stenostachys Turcz. (Poaceae: Triticeae)
- 2011
-
Ingår i: Plant Systematics and Evolution. - : Springer Science and Business Media LLC. - 0378-2697 .- 1615-6110. ; 291, s. 197-210
-
Tidskriftsartikel (refereegranskat)abstract
- Based on sequences from two single-copy nuclear genes (DMC1 and EF-G), four plastid genes (rbcL, rpoA, matK, and ndhF), and one mitochondrial gene (coxII), we investigate the origin of the H, St, W, and Y genomes in four allotetraploid species of Elymus and two allotetraploid species of Stenostachys. Despite significant incongruence between the two nuclear genes and between the nuclear and organelle data partitions, individual and combined analyses of the data partitions unequivocally show that the St and H genomes of the tetraploid American species of Elymus are derived from Pseudoroegneria and Hordeum, respectively, with Pseudoroegneria serving as the female parent, and that the H and W genomes of Stenostachys are derived from Hordeum and Australopyrum, respectively, with Hordeum serving as the female parent. The analyses equally clearly demonstrate that the St genome of the tetraploid Asiatic Elymus species is derived from Pseudoroegneria, with the latter serving as the female parent, but the relationship of the Y genome is less clear. Individual analyses of the nuclear genes provide conflicting results, but combined analysis of all data suggests a sister group relationship to Heteranthelium, albeit without any jackknife support.
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| 44. |
- Klemedtsson, Åsa Kasimir, 1956
(författare)
-
Lustgasavgång från jordbruksmark
- 2009
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Regeringen fattade den 26 juni 2008 beslut om ändring av Jordbruksverkets regleringsbrev rörande uppdraget ”Åtgärdsprogram för minskade växtnäringsförluster” vilket ersätts av uppdraget; ”Jordbruksverket ska efter samråd med berörda myndigheter och organisationer lämna förslag till ett handlingsprogram för minskade växtnärings- och växthusgasförluster från jordbruket för perioden 2011 till och med 2016 med utblick till 2020.” Framtagandet av ett handlingsprogram inom jordbruksverket bedrivs som ett projekt vilket ska utgöra underlag för vidare beslut och genomförande. Föreslagna åtgärder och styrmedel ska vara realistiska, genomförbara och kostnadseffektiva. Förslag till nytt handlingsprogram ska vara färdigt våren 2010. Som ett led i projektet gavs ett uppdrag till Åsa Kasimir Klemedtsson att utreda och ge förslag till möjliga åtgärder i jordbruket som kan minska lustgasavgången från jordbruksmark. Rapporteringen följer de anvisningar som gavs.
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| 45. |
- Langeveld, H., et al.
(författare)
-
Assessing Environmental Impacts of Short Rotation Coppice (SRC) Expansion: Model Definition and Preliminary Results
- 2012
-
Ingår i: Bioenergy Research. - : Springer Science and Business Media LLC. - 1939-1234 .- 1939-1242. ; 5:3, s. 621-635
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Tidskriftsartikel (refereegranskat)abstract
- Short rotation coppice (SRC) systems can play a role as feedstock for bioenergy supply contributing to EU energy and climate policy targets. A scenario depicting intensive arable crop cultivation in a homogeneous landscape (lacking habitat structures) was compared to a scenario including SRC cultivation on 20 % of arable land. A range of indicators was selected to assess the consequences of SRC on soil, water and biodiversity, using data from the Rating-SRC project (Sweden and Germany). The results of the assessment were presented using spider diagrams. Establishment and use of SRC for bioenergy has both positive and negative effects. The former include increased carbon sequestration and reduced GHG emissions as well as reduced soil erosion, groundwater nitrate and surface runoff. SRC can be used in phytoremediation and improves plant and breeding bird biodiversity (exceptions: grassland and arable land species) but should not be applied in dry areas or on soils high in toxic trace elements (exception: cadmium). The scenario-based analysis was found useful for studying the consequences of SRC cultivation at larger scales. Limitations of the approach are related to data requirements and compatibility and its restricted ability to cover spatial diversity and dynamic processes. The findings should not be generalised beyond the representativeness of the data used.
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| 46. |
- Messing, Ingmar
(författare)
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Uppsalaslätten i ett framtidsperspektiv
- 2011
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Ingår i: Att planera för 2000-talet - exemplet Uppsala. - 9789163389863 ; , s. 149-172
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Bokkapitel (populärvet., debatt m.m.)
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| 47. |
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| 48. |
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| 49. |
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| 50. |
- Levinsson, Anna, et al.
(författare)
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Influence of nursery production system on water status in transplanted trees
- 2014
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Ingår i: Scientia Horticulturae. - : Elsevier. - 0304-4238 .- 1879-1018. ; 178, s. 124-131
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Tidskriftsartikel (refereegranskat)abstract
- The objective of this study was to investigate the influence of the nursery production system on post-transplant water uptake and stress in urban trees during the establishment phase. Field-grown trees of sweet cherry (Prunus avium L) and red oak (Quercus rubra L) were either transplanted as bare-rooted or balled & burlapped, or subjected to fine-root-stimulating measures (in so called pre-establishing systems) as root-pruning, air-potting or fabric-container-cultivation in the nurseries one year prior to transplanting. All trees were planted at two sites: one occasionally dry site in the city of Malmö and one with adequate water supply at all times, at an experimental rural site at Alnarp campus, both in Sweden. Shoot water potential was determined every third week at midday and pre-dawn the following morning during the three first years after transplanting. Leaf surface area was measured annually. The red oak trees from the pre-establishing systems showed higher water potentials at every measuring occasion compared to that of bare-rooted red oak trees at the rural site during the first year. The air-potted sweet cherry trees at the rural site had higher midday water potential than the bare-rooted trees at every measuring occasion during the first year. Leaf surface area was larger for air-potted red oaks than bare-rooted red oaks during the first post-transplant year (p < 0.001, both sites). The differences between the production systems did not persist during the following two years. Leaf surface area was restored to pre-transplant size in all trees at the rural site after three years but still reduced at the urban site. These results suggest that the pre-establishing systems do have an impact on water status when soil water availability is sufficient, but less significance in typically urban areas, with limited soil water during the initial post-transplant phase. The results indicate that red oak and sweet cherry trees planted in an urban context, with occasionally low soil water amounts, are not favored by cultivation in pre-establishing systems prior to transplant, and that low water availability cannot be compensated for by high amounts of fine roots. Good establishment management is required also for trees submitted to pre-establishing measures.
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