| 1. |
- Lundblad, Mattias, et al.
(författare)
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KP-LULUCF
- 2016
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Ingår i: National inventort report Sweden 2016: greenhouse gas emission inventories 1990-2014: submitted under the United Nations framework convention om climate change and the Kyoto protocol. ; , s. 471-500
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Bokkapitel (refereegranskat)
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| 2. |
- Lundblad, Mattias, et al.
(författare)
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KP-LULUCF
- 2015
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Ingår i: National Inventory Report Sweden 2015: Greenhouse Gas Emission Inventories 1990-2013: Submitted under the United Nations Framework Convention on Climate Change and the Kyoto Protocol. ; , s. 440-465
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 3. |
- Lundblad, Mattias, et al.
(författare)
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KP-LULUCF
- 2019
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Ingår i: National inventory report Sweden 2019 : greenhouse gas emission inventories 1990-2017. ; , s. 457-483
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Bokkapitel (refereegranskat)
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| 4. |
- Lundblad, Mattias, et al.
(författare)
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Land use, land-use change and forestry (CRF sector 4)
- 2015
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Ingår i: National Inventory Report Sweden 2015: Greenhouse Gas Emission Inventories 1990-2013: Submitted under the United Nations Framework Convention on Climate Change and the Kyoto Protocol. ; , s. 326-364
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 5. |
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| 6. |
- Lundblad, Mattias, et al.
(författare)
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Land use, land-use change and forestry (CRF sector 4), KP-LULUCF
- 2016
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Ingår i: National inventory report Sweden 2016: greenhouse gas emission inventories 1990-2014: submitted under the United Nations framework convention on climate change and the Kyoto protocol. ; , s. 353-392
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Bokkapitel (refereegranskat)
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| 7. |
- Azzi, Elias Sebastian, et al.
(författare)
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Prospective Life Cycle Assessment of Large-Scale Biochar Production and Use for Negative Emissions in Stockholm
- 2019
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Ingår i: Environmental Science and Technology. - : American Chemical Society (ACS). - 0013-936X .- 1520-5851. ; 53:14, s. 8466-8476
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Tidskriftsartikel (refereegranskat)abstract
- Several cities in Sweden are aiming for climate neutrality within a few decades and for negative emissions thereafter. Combined biochar, heat, and power production is an option to achieve carbon sequestration for cities relying on biomass-fuelled district heating, while biochar use could mitigate environmental pollution and greenhouse gas emissions from the agricultural sector. By using prospective life cycle assessment, the climate impact of the pyrolysis of woodchips in Stockholm is compared with two reference scenarios based on woodchip combustion. The pyrolysis of woodchips produces heat and power for the city of Stockholm, and biochar whose potential use as a feed and manure additive on Swedish dairy farms is explored. The climate change mitigation trade-off between bioenergy production and biochar carbon sequestration in Stockholm's context is dominated by the fate of marginal power. If decarbonisation of power is achieved, building a new pyrolysis plant becomes a better climate option than conventional combustion. Effects of cascading biochar use in animal husbandry are uncertain but could provide 10-20% more mitigation than direct biochar soil incorporation. These results help design regional biochar systems that combine negative carbon dioxide emissions with increased methane and nitrous oxide mitigation efforts and can also guide the development of minimum performance criteria for biochar products.
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| 8. |
- Berglund, Örjan, et al.
(författare)
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Land use on organic soils in Sweden – a survey on the land use of organic soils within agriculture and forest lands during 1983-2014
- 2016
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Data from the Geological Survey of Sweden (SGU), the Swedish Board of Agriculture and the Swedish National Forest Inventory were used in a GIS analysis to evaluate the distribution of organic soils (OS) used for agriculture and forestry in Sweden. The status of agricultural soils and agricultural land use changes were also studied, based on the most recent data available from the SGU. The total surface area of OS in Sweden was estimated to be 6 207 284 ha (15.2% of the land surface area), which is less than reported in previous assessments (Berglund and Berglund, 2008; Berglund et al., 2009). Of the total OS area 98.2% was peat, of which 4.7% was shallow peat and 2.5% 40K peat (peat determined using gamma radiation data). The remaining 1.8% were gyttja soils. Total agricultural area under EU regulations (i.e. on the EU agriculture block map) in Sweden was 3 232 039 ha (7.9% of the land surface area) and most of this was arable land (82.8%). Pasture occupied approx. 16% of the area, the land use on the remaining 1.2% is unknown. Agricultural area on OS (AOS) based on SGU-data and the EU agriculture block map was estimated to be 225 722 ha which is 7% of the total agricultural area based on EU agriculture block maps and 9.0% based on the national maps over agricultural land areas provided by the Swedish Board of Agriculture. More than 50% of AOS was arable land whereas approx. 40% was divided between pasture and unmanaged arable land. The remaining area was wetland, unknown or other land use type. In comparison to previously studies in 2003 (Berglund and Berglund, 2008) and 2008 (Berglund et al., 2009), both the total agricultural area and AOS area have decreased, probably due to structural changes in agriculture. The decline has been sharper for the surface area of AOS than for the total agricultural area. Among the Swedish National Forest Inventory plots, 12.3% were located on OS. Land use changes recorded on the Forest Inventory plots were mostly from arable land to other land uses rather than from other land uses to arable land both in total area and in OS.
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| 9. |
- Chala, Workneh Bedada, et al.
(författare)
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Soil nutrient build-up, input interaction effects and plot level N and P balances under long-term addition of compost and NP fertilizer
- 2016
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Ingår i: Agriculture, Ecosystems and Environment. - : Elsevier BV. - 0167-8809 .- 1873-2305. ; 218, s. 220-231
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Tidskriftsartikel (refereegranskat)abstract
- Decline in farmland soil fertility due to nutrient depletion is a concern for smallholder farmers in the highlands of Ethiopia. In this study we tested if long-term addition of compost, either alone or in combination with nitrogen (N) and phosphorous (P) fertilizer, affected available soil nutrient status, grain/tuber harvests, agronomic N use efficiency, and plot level N and P nutrient balances. The on-farm experiments were conducted on four farm fields for up to 6 years in Beseku, Ethiopia. A randomized complete block design was used, with four treatments: full dose of compost applied alone at 2.4 t ha(-1) DW organic matter (C); full dose of fertilizer (F); half compost and half fertilizer (CF); and, unfertilized control. In the upper 10 cm of the surface soil, several Mehlich-3 extractable nutrients (B, Ca, K, Mg, P, S, and Zn) had significantly higher concentrations in the C treatment (P < 0.01), and some in the CF treatment (P < 0.05) than in the control. Phosphorus was the only nutrient with a higher concentration in the F treatment than the control. Maize and faba bean showed added benefits (synergy) in terms of yield increase in the CF treatment and a better agronomic efficiency for added N. Plot level N balances were negative for all treatments except C, with strong depletion in the control (-76 kg N ha(-1) yr(-1)) and F (-65 kg N ha(-1) yr(-1)) treatments. When the N balance was compared to measured change in soil N, the F and control treatments were significantly (P < 0.05) lower than zero. N in the CF and C treatments was close to steady-state, i.e., the input of N in organic matter compensated for the loss of N through mineralization. The control treatment had a negative P balance of 11 kg P ha(-1) yr(-1), with moderately negative balance of 4 kg P ha(-1) yr(-1) in the C treatment. The CF and F treatments had positive P balances. Thus, the addition of compost, both alone or in combination with mineral fertilizer, can prevent N and reduce P mining and improve the nutrient status of the soil. When only NP fertilizer was used, the crop utilized all N that was mineralized indicating that the crop was N limited. (C) 2015 Elsevier B.V. All rights reserved.
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| 10. |
- Guedes, Benard, et al.
(författare)
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Effects of 34-year-old Pinus taeda and Eucalyptus grandis plantations on soil carbon and nutrient status in former miombo forest soils
- 2016
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Ingår i: Global Ecology and Conservation. - : Elsevier BV. - 2351-9894. ; 8, s. 190–202-
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Tidskriftsartikel (refereegranskat)abstract
- There is a strong need in Mozambique to counteract decades of deforestation and forest degradation by planting new forests. Plantations of Pinus/Eucalyptus species and maintenance of mature miombo forests are activities supported by the REDD+ mechanism (Reducing Emissions from Deforestation and forest Degradation) in climate negotiations. This study examined the effects of first-rotation Pinus taeda L. (Loblolly pine) and Eucalyptus grandis Hill ex Maiden plantations (ca. 34 years old) on soil carbon status compared with adjacent dry miombo forest. At three study sites located in the Western Highlands of Manica Province, Mozambique, study plots with Pinus taeda, Eucalyptus grandis and mixed-deciduous miombo species were delineated. The selection criteria were (i) forest stand of first-rotation plantation of Pinus/Eucalyptus, located adjacent to miombo forest, (ii) plantations established on soils similar to miombo forest soils, and (iii) former land use similar to that at current miombo sites. Stocks of soil organic carbon (SOC), total nitrogen (N) and extractable phosphorus (P) were quantified. Soil pH (H2O), cation exchange capacity (CEC) and base saturation (BS) were measured in soil extracted with ammonium acetate. Plantations of P. taeda and E. grandis increased total SOC stocks (0-50 cm) and N stocks in the top 10 cm. Assuming steady state in the miombo stands, the estimated net stock change in soil carbon was 1.41 Mg ha-1 yr-1 in P. taeda and 1.53 Mg ha-1 yr-1 in E. grandis stands. Estimated N accumulation rate was 32 kg ha-1 yr-1 in P. taeda and E. grandis stands. Pinus taeda had no significant effect on extractable P, soil pH and BS, but had significantly higher CEC compared with miombo forest soil. Eucalyptus grandis decreased P stocks, but increased soil pH and BS. Overall, P. taeda and E. grandis plantation had a large impact on SOC in dry miombo forest and also affected soil acidity and soil nutrient status, except for total soil N stocks. These effects of tree plantation on soil reflected differences in management practices between miombo forest and plantations, with the latter being subjected to better protection against fires and illegal cutting.
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