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- Giele, Walter, et al.
(författare)
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The QCD / SM working group: Summary report
- 2002
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Ingår i: Physics at TeV colliders. Proceedings, Euro Summer School, Les Houches, France, May 21-June 1, 2001. ; , s. 275-426, s. 275-426
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 4. |
- Jackson, R B, et al.
(författare)
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Belowground consequences of vegetation change and their treatment in models
- 2000
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Ingår i: Ecological Applications. - 1051-0761. ; 10:2, s. 470-483
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Tidskriftsartikel (refereegranskat)abstract
- The extent and consequences of global land-cover and land-use change are increasingly apparent. One consequence not so apparent is the altered structure of plants belowground. This paper examines such belowground changes, emphasizing the interaction of altered root distributions with other factors and their treatment in models. Shifts of woody and herbaceous vegetation with deforestation, afforestation, and woody plant encroachment typically alter the depth and distribution of plant rests, influencing soil nutrients, the water balance, and net primary productivity (NPP). For example, our analysis of global soil data sets shows that the major plant nutrients C, N, P, and K are more shallowly distributed than are Ca, Mg, and Na, but patterns for each element vary with the dominant vegetation type. After controlling for climate, soil C and N are distributed more deeply in arid shrublands than in arid grasslands, and subhumid forests have shallower nutrient distributions than do subhumid grasslands. Consequently, changes in vegetation may influence the distribution of soil carbon and nutrients over time (perhaps decades to centuries). Shifts in the water balance are typically much more rapid. Catchment studies indicate that the water yield decreases 25-40 mm for each 10% increase in tree cover, and increases in transpiration of water taken up by deep roots may account for as much as 50% of observed responses. Because models are increasingly important for predicting the consequences of vegetation change, we discuss the treatment of belowground processes and how different treatments affect model outputs. Whether models are parameterized by biome or plant life form (or neither), use single or multiple soil layers, or include N and water limitation will all affect predicted outcomes. Acknowledging and understanding such differences should help constrain predictions of vegetation change.
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| 6. |
- Christensen, Torben, et al.
(författare)
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Element interactions and trace gas exchange
- 2003
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Ingår i: Interactions of the Major Biogeochemical Cycles: Global Change and Human Impacts. - 1559630663 - 1559630655 ; SCOPE 61, s. 247-258
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 9. |
- Larsson, Tore J., et al.
(författare)
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The distribution of occupational injury risks in the State of Victoria
- 2002
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Ingår i: Safety Science. - 0925-7535 .- 1879-1042. ; 40:5, s. 419-437
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Tidskriftsartikel (refereegranskat)abstract
- Based on a merger of workers' compensation data from the public fund Victorian Work-cover Authority for the period 1992-1998 and denominator data from the Australian Bureau of Statistics 1996 Census, the relative distribution of occupational injury risk in the state of Victoria has been calculated. A reconstituted occupational code, made from combining the present Australian Bureau of Statistics (ABS) occupational and industrial codes, was used to differentiate occupations in relation to hazards. A four-part injury severity index, generated by the claims settling process, has been used to differentiate occupations, tasks and activities in terms of priorities for intervention and prevention. Occupational injury incidence and severity in Victoria between 1992 and 1998 has been analysed. Among large and small occupational groups the combined criteria of high annual injury incidence and extreme injury severity have identified the following occupational groups as the top priorities for prevention counter-measures in Victoria: Glass, clay, stone workers; Miners, drillers; Forestry and logging workers; Roof layers; Car and delivery drivers; Wood industry workers; Other construction workers. Ergonomic interventions, together with the prevention of falls and power tool incidents related to the relevant occupational exposures, were discussed.
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| 10. |
- Larsson, Tore J, et al.
(författare)
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The distribution of occupational injury risks in the Victorian construction industry : Part 2
- 2002
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Ingår i: Safety Science. - 0925-7535 .- 1879-1042. ; 40:5, s. 439-456
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Tidskriftsartikel (refereegranskat)abstract
- Based on a merger of workers' compensation data from the public fund Victorian Workcover Authority for the period 1996–1998 and denominator data from the Australian Bureau of Statistics 1996 Census, the relative distribution of occupational injury risk in the Victorian construction industry has been calculated. A four-part injury severity index, generated by the claims settling process, has been used to differentiate occupations, tasks and activities in terms of priorities for intervention and prevention. Falls from height represents the major severe injury problem in the Victorian construction industry. However, the fall risk problem is associated with different equipment and different tasks among the different occupational groups in the construction process and requires a variety of architectural, engineering and design solutions.
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