| 1. |
- Broberg, Malin, 1989, et al.
(författare)
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Ozone induced loss of seed protein accumulation is larger in soybean than in wheat and rice
- 2020
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Ingår i: Agronomy. - : MDPI AG. - 2073-4395. ; 10:3
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Tidskriftsartikel (refereegranskat)abstract
- We investigated the effects of ozone (O3) on seed protein accumulation in soybean, rice, and wheat based on existing literature. We identified 30, 10, and 32 datasets meeting the requirements for soybean, rice, and wheat, respectively. Data for each crop were combined in response regressions for seed protein concentration, seed protein yield, and seed yield. Although seed yield in rice was less sensitive to O3 than in wheat, there was a significant positive effect of O3 on the seed protein concentration of the same magnitude in both crops. Soybean, an N-fixing high-protein crop, responded differently. Even though the effect on seed yield was similar to wheat, there was no indication of any effect of O3 on seed protein concentration in soybean. The negative influence of O3 on seed protein yield was statistically significant for soybean and wheat. The effect was larger for soybean (slope of response function: −0.58% per ppb O3) than for wheat (slope: −0.44% per ppb) and especially compared to rice (slope: −0.08% per ppb). The different response of protein concentration in soybean, likely to be associated with adverse O3 effects on N fixation, has large implications for global protein production because of the much higher absolute protein concentration in soybean.
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| 2. |
- Ekman, A, et al.
(författare)
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Swedish Clean Air and Climate Research Programme – SCAC Final report second phase
- 2020
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The SCAC-2 program was initiated to provide an extended scientific knowledge base in national and international discussions and negotiations on the development of new air pollution policies and measures. Specifically, the program was focused on four main areas where additional knowledge was needed to support further actions: air pollution and climate interactions and hemispheric transport; air pollution and human health with focus on particles from transport and domestic wood burning; ecosystem effects (and air pollution – climate interactions) of ozone and nitrogen, the latter with emphasis on national nitrogen budgets and biodiversity. Finally, integrated assessment modelling and identification of the most efficient abatement strategies was included.
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| 3. |
- Johansson, Julia M., et al.
(författare)
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The European heat wave of 2018 and its promotion of the ozone climate penalty in southwest Sweden
- 2020
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Ingår i: Boreal Environment Research. - 1239-6095 .- 1797-2469. ; 25, s. 39-50
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Tidskriftsartikel (refereegranskat)abstract
- The ozone concentration ([O-3]), temperature (T) and vapour pressure deficit (VPD) during the 2018 heat wave (HW) was compared with conditions from 2013-2017. The study included one coastal and two inland sites in southwest Sweden. The positive relationship between [O-3] and T was stronger in 2018. The average daytime T from April-September was higher by 2.0-2.4 degrees C in 2018. The VPD was strongly and positively affected by the 2018 HW. The daytime mean [O-3] was enhanced by 7-12% in 2018. The relationship between hourly daytime [O-3] and T, as well as that between the daily maximum [O-3] and daily maximum T, was steeper in 2018. The stronger promotion of [O-3] by T in 2018 was possibly partly a result of dry conditions causing stomatal closure of vegetation and thus a weaker O-3 sink. If HWs like that in 2018 become more common, they can be expected to promote higher [O-3] and risk larger health and ecosystem effects.
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| 4. |
- Persson, Kill, 1958, et al.
(författare)
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Från dynsvacka till fjällhed - fjällmurklingen greppar brett
- 2020
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Ingår i: Svensk Mykologisk Tidskrift. ; 41:2, s. 30-36
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Sarcoleotia globosa in Halland (S. Sweden) The small ascomycete Sarcoleotia globosa (Geoglossaceae) is presented and its distribution and habitat preferences are discussed. It was described from northern Norway in 1866 and was long known only from boreal and arctic-alpine regions. Subsequent records from Germany, Belgium, the Netherlands and Denmark have indicated its presence also in lowland areas. The authors here report it from dune slacks in the coastal area of Halland (southern Sweden), where it occurs on sandy soil with a sparse vegetation of Calluna, Empetrum, low mosses and lichens. This habitat is dependent on erosion and a moderate and continuous soil disturbance (eg trampling).
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| 5. |
- Pihl-Karlsson, Gunilla, et al.
(författare)
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Marknära ozon i bakgrundsmiljö i södra Sverige Ozonmätnätet i södra Sverige 2019
- 2020
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Denna rapport presenterar resultaten från 2019 års mätningar inom ”Ozonmätnätet i södra Sverige”. ”Ozonmätnätet i södra Sverige” startades 2009 av IVL Svenska Miljöinstitutet i samarbete med Göteborgs universitet, på uppdrag av ett antal länsstyrelser och luftvårdsförbund i södra Sverige. Huvudsyftet med mätningarna inom ”Ozonmätnätet i södra Sverige” är att ge en förbättrad regional uppskattning av eventuella överskridanden av de ozonindex som beskriver inverkan av marknära ozon på växtligheten (AOT40).”Ozonmätnätet i södra Sverige” bidrar även till den nationella övervakningen av ozonhalterna, då programmet ger mer detaljerad information av ozonvariationen i södra Sverige.
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| 6. |
- Pleijel, Håkan, 1958, et al.
(författare)
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Grenig gräslilja - ytterligare en sällsynt adventivväxt på Kvibergsfältet i nordöstra Göteborg
- 2020
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Ingår i: Svensk Botanisk Tidskrift. - 0039-646X. ; 114:1, s. 12-15
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The first spontaneous occurrence of Sisyrinchium angustifolium in the Nordic countries was found at Utby, northeast of Gothenburg, in 2019. The find was made on a gravelly roadside in the same area where Hypericum cerastoides and Veronica orchidea were found in 2018.
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| 7. |
- Toreti, A, et al.
(författare)
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Narrowing uncertainties in the effects of elevated CO2 on crops
- 2020
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Ingår i: Nature Food. - : Springer Science and Business Media LLC. - 2662-1355. ; 1, s. 775-782
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Tidskriftsartikel (refereegranskat)abstract
- Plant responses to rising atmospheric carbon dioxide (CO2) concentrations, together with projected variations in temperature and precipitation will determine future agricultural production. Estimates of the impacts of climate change on agriculture provide essential information to design effective adaptation strategies, and develop sustainable food systems. Here, we review the current experimental evidence and crop models on the effects of elevated CO2 concentrations. Recent concerted efforts have narrowed the uncertainties in CO2-induced crop responses so that climate change impact simulations omitting CO2 can now be eliminated. To address remaining knowledge gaps and uncertainties in estimating the effects of elevated CO2 and climate change on crops, future research should expand experiments on more crop species under a wider range of growing conditions, improve the representation of responses to climate extremes in crop models, and simulate additional crop physiological processes related to nutritional quality.
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