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Lundstrom, Ulla S.
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Publications (10 of 68) Show all publications
Vestin, J. L. K., Söderberg, U., Bylund, D., Nambu, K., van Hees, P. A. W., Haslinger, E., . . . Lundstrom, U. S. (2013). The influence of alkaline and non-alkaline parent material on Norway spruce tree chemical composition and growth rate. Plant and Soil, 370(1-2), 103-113
Open this publication in new window or tab >>The influence of alkaline and non-alkaline parent material on Norway spruce tree chemical composition and growth rate
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2013 (English)In: Plant and Soil, ISSN 0032-079X, E-ISSN 1573-5036, Vol. 370, no 1-2, p. 103-113Article in journal (Refereed) Published
Abstract [en]

This study investigated the influence of contrasting parent materials on tree chemical composition and growth rate under field conditions. On the island of Alno, Sweden, alkaline intrusions are interspersed into non-alkaline gneiss bedrock, which provides a unique opportunity to conduct this study with a minimum of confounding effects. Three plots with alkaline and three plots with non-alkaline parent material were established in a homogenous Norway spruce stand. The chemical composition of soil and soil solution was determined throughout the soil profiles. The chemical composition of bark, wood and needles was determined for each plot, and the latest 5 year basal area growth increment calculated. Concentrations of Ca in needles were correlated with the soil exchangeable Ca levels. Tree growth rate was significantly higher on the alkaline plots and positively correlated with soil concentrations of Ca, Mg, P, and Zn. The tree growth rate also tended to correlate with soil N concentrations, but levelled out for the highest soil N concentrations. Tree growth was enhanced on the alkaline plots and was correlated with several elements. However, none of these elements could be confirmed as the limiting one for tree growth at the current site.

Keywords
Needles; Nutrients; Soil solution; Tree growth
National Category
Chemical Sciences
Identifiers
urn:nbn:se:miun:diva-19937 (URN)10.1007/s11104-013-1615-2 (DOI)000323253500008 ()2-s2.0-84881611861 (Scopus ID)
Available from: 2013-10-04 Created: 2013-09-25 Last updated: 2017-12-06Bibliographically approved
Norström, S. H., Bylund, D., Vestin, J. L. K. & Lundström, U. S. (2012). Initial effects of wood ash application to soil and soil solution chemistry in a small, boreal watershed. Geoderma, 187, 85-93
Open this publication in new window or tab >>Initial effects of wood ash application to soil and soil solution chemistry in a small, boreal watershed
2012 (English)In: Geoderma, ISSN 0016-7061, E-ISSN 1872-6259, Vol. 187, p. 85-93Article in journal (Refereed) Published
Abstract [en]

With the conception that whole tree harvesting leads to an impoverishment of forest soils wood ash application is recommended, with the foremost benefits being increased pH in soil and subsequent surface waters, and recycling of nutrients from the wood ash.

In this investigation a small boreal catchment in central Sweden was studied for two years before and two years after treatment with the maximum recommended dose, 3 tonnes/ha, of crushed, self-hardened wood ash. The sampling area was situated in a slope towards a stream, to include the effect on both recharge- and discharge areas with different soil constitutions. The soil solution chemistry, exchangeable pool of cations and potential heavy metal accumulation in berries were studied. Temporary increases in soil solution concentration were found for K in the recharge area and Ca and SO4 in the discharge area when comparing ashed and control areas. No change in exchangeable cations was observed during the study period, and no increase of heavy metals in bilberries did occur. These small changes in the constitution of the soil solution do not suggest wood ash application as a method to improve soil quality in an initial phase.

Place, publisher, year, edition, pages
Elsevier, 2012
Keywords
Base cations, catchment, dissolved organic carbon, soil solution, wood ash
National Category
Chemical Sciences
Identifiers
urn:nbn:se:miun:diva-12995 (URN)10.1016/j.geoderma.2012.04.011 (DOI)000306050600011 ()2-s2.0-84861332246 (Scopus ID)
Projects
FORE
Available from: 2011-01-14 Created: 2011-01-14 Last updated: 2017-12-11Bibliographically approved
Norström, S., Bylund, D., Vestin, J. L. & Lundström, U. S. (2011). Initial effects of wood ash application on the stream water chemistry in a boreal catchment in central Sweden. Water, Air and Soil Pollution, 221(1-4), 123-136
Open this publication in new window or tab >>Initial effects of wood ash application on the stream water chemistry in a boreal catchment in central Sweden
2011 (English)In: Water, Air and Soil Pollution, ISSN 0049-6979, E-ISSN 1573-2932, Vol. 221, no 1-4, p. 123-136Article in journal (Refereed) Published
Abstract [en]

Due to increased whole-tree harvesting in Swedish forestry, concern has been raised that a depletion of nutrients in forest soil will arise. The Swedish Forest Agency recommends compensation fertilization with wood ash to ensure that unwanted effects are avoided in the nutrient balance of the forest soil and in the quality of surface water. In this investigation, the chemistry of two first-order streams, of which one was subjected to a catchment scale treatment with 3 tonnes of self-hardened wood ash/ha in the fall of 2004, was monitored during 2003-2006. Large seasonal variations in stream water chemistry made changes due to ash application difficult to detect, but evaluating the ash treatment effects through comparison of the stream water of the treated catchment with the reference was possible via statistical tools such as randomized intervention analysis in combination with cumulative sum charts. The wood ash application did not yield any significant effect on the pH in the stream water and hence did not affect the bicarbonate system. However, dissolved organic carbon increased, a previously unreported effect of WAA, bringing about an increase of organic anions in the stream water. The wood ash application also induced significant increases for Ca, Mg, K, Si, Cl and malonate, of which K was most prominent. Although significant, the changes induced by the wood ash application were all small compared to the seasonal variations. As a tool to counteract acidification of surface waters, WAA seems to have limited initial effects

Keywords
Base cations; Catchment; CUSUM; Malonate; Stream water; Wood ash
National Category
Chemical Sciences
Identifiers
urn:nbn:se:miun:diva-12994 (URN)10.1007/s11270-011-0775-z (DOI)000296696000010 ()2-s2.0-80053580896 (Scopus ID)
Available from: 2011-01-14 Created: 2011-01-14 Last updated: 2017-12-11Bibliographically approved
Ali, T., Bylund, D., Essén, S. A. & Lundström, U. (2011). Liquid extraction of low molecular mass organic acids and hydroxamate siderophores from boreal forest soil. Soil Biology and Biochemistry, 43(12), 2417-2422
Open this publication in new window or tab >>Liquid extraction of low molecular mass organic acids and hydroxamate siderophores from boreal forest soil
2011 (English)In: Soil Biology and Biochemistry, ISSN 0038-0717, E-ISSN 1879-3428, Vol. 43, no 12, p. 2417-2422Article in journal (Refereed) Published
Abstract [en]

Low molecular mass organic acids (LMMOAs) and hydroxamate siderophores (HS) are molecules secreted by microbes and have previously been found in soil solution and in cultures. Mycorrhizal fungi are suggested to be involved in the nutrient uptake processes of trees and weathering of minerals. In this study soil samples taken from the O and E horizons of a podzol were extracted with 10 mM potassium phosphate buffer at pH 7.2. Variable parameters included addition of methanol to the extraction buffer and the use of ultrasonication or rotary shaking during extraction. LMMOAs and HS content of the soil extracts were determined. Analysis of soil extracts were carried out by liquid chromatography mass spectrometry (LC-MS) and the extraction results compared to results for soil solution samples obtained by centrifugation of the soils sampled. The extraction yields were significantly increased by addition of methanol to the extraction buffer, especially for the O horizon samples. Rotary shaking of the samples for 90 min gave slightly higher yields than ultrasonication for 15 min but the reduction in extraction time makes ultrasonication an attractive option. Of the HSs determined, ferricrocin was found in all samples. Optimal extraction conditions showed citric acid and isocitric acid to be the most abundant organic acids in the O and E horizons, respectively.

Keywords
Extraction, Low molecular mass organic acids, hydroxamate siderophores, forest soil, mycorrhiza
National Category
Natural Sciences
Identifiers
urn:nbn:se:miun:diva-14544 (URN)10.1016/j.soilbio.2011.08.015 (DOI)000297084700008 ()2-s2.0-80052846419 (Scopus ID)
Available from: 2011-09-28 Created: 2011-09-28 Last updated: 2017-12-08Bibliographically approved
Norström, S. H., Vestin, J. L., Bylund, D. & Lundström, U. S. (2010). Influences of dissolved organic carbon on stream water chemistry in two forested catchments in central Sweden. Paper presented at 6th International Symposium on Ecosystem Behavior, Jun 29-Jul 03, 2009, Helsinki, Finland. Biogeochemistry, 101(1-3), 229-241
Open this publication in new window or tab >>Influences of dissolved organic carbon on stream water chemistry in two forested catchments in central Sweden
2010 (English)In: Biogeochemistry, ISSN 0168-2563, E-ISSN 1573-515X, Vol. 101, no 1-3, p. 229-241Article in journal (Refereed) Published
Abstract [en]

Stream water chemistry in two headwater streams draining two small, adjacent catchments in Bispgården, central Sweden was studied during the 2003 and 2004 growing seasons. The two catchments closely resemble each other in regard to size, shape and drainage density, with the major difference found in the area of wetland lining the streambeds. The emphasis of the study was to investigate the stream water chemistry of these closely resembling catchments, regarding the quality and quantity of dissolved organic carbon (DOC) and its influence on the concentrations of di- and trivalent cations. The streams showed significant differences in the content and size distribution of DOC and in the distribution of cations between the different size fractions. For both streams the high flow events induced by precipitation influenced the chemistry of the streams through increase of organic matter and its associated cations. Fanbergsbäcken, with relatively low pH and high DOC concentration, had a greater amount of high molecular mass (HMM) DOC to which approximately 75% of Al and Fe and about 50% of Ca and Mg were associated. Gråbergsbäcken, with a higher pH and lower DOC level, had approximately 65% of Al, 40% of Fe and 30% of Ca and Mg associated to its HMM DOC fraction. Sixteen different low molecular mass organic acids were found in the stream water, of which oxalic and lactic acid were present in the highest concentrations.

Place, publisher, year, edition, pages
Springer, 2010
Keywords
catchment, dissolved organic carbon, low molecular mass organic acids, metals, size fraction, stream water
National Category
Other Basic Medicine Analytical Chemistry Agricultural and Veterinary sciences Soil Science
Identifiers
urn:nbn:se:miun:diva-12457 (URN)10.1007/s10533-010-9469-7 (DOI)000285096700018 ()2-s2.0-78650004473 (Scopus ID)
Conference
6th International Symposium on Ecosystem Behavior, Jun 29-Jul 03, 2009, Helsinki, Finland
Note
6th International Symposium on Ecosystem Behavior, Jun 29-Jul 03, 2009, Helsinki, FinlandAvailable from: 2010-12-07 Created: 2010-12-07 Last updated: 2018-01-12Bibliographically approved
Holmström, S. J., Rosling, A., Finlay, R. D., van Hees, P. A. & Lundström, U. (2009). Contribution of ectomycorrhizal fungi to biogeochemical processes during iron and calcium limitation: Meeting abstract. In: GEOCHIMICA ET COSMOCHIMICA ACTA. Paper presented at 19th Annual VM Goldschmidt Conference, Jun 21, 2009, Davos, Switzerland (pp. A546-A546). Pergamon Press
Open this publication in new window or tab >>Contribution of ectomycorrhizal fungi to biogeochemical processes during iron and calcium limitation: Meeting abstract
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2009 (English)In: GEOCHIMICA ET COSMOCHIMICA ACTA, Pergamon Press, 2009, p. A546-A546Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Pergamon Press, 2009
Series
GEOCHIMICA ET COSMOCHIMICA ACTA, ISSN 0016-7037 ; 73 Suppl
National Category
Other Basic Medicine
Identifiers
urn:nbn:se:miun:diva-11842 (URN)000267229901327 ()
Conference
19th Annual VM Goldschmidt Conference, Jun 21, 2009, Davos, Switzerland
Available from: 2010-07-14 Created: 2010-07-14 Last updated: 2018-01-12Bibliographically approved
Smits, M. M., Herrmann, A. M., Duane, M., Duckworth, O. W., Bonneville, S., Benning, L. G. & Lundström, U. S. (2009). The fungal-mineral interface: Challanges and considerations of micro-analytical developments. Fungal Biology Reviews, 23(4), 122-131
Open this publication in new window or tab >>The fungal-mineral interface: Challanges and considerations of micro-analytical developments
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2009 (English)In: Fungal Biology Reviews, ISSN 1749-4613, E-ISSN 1878-0253, Vol. 23, no 4, p. 122-131Article in journal (Refereed) Published
Abstract [en]

Over recent years, the role of fungi, especially mycorrhizal fungi, in the weathering of rock-forming minerals has been increasingly recognised. Much of our understanding of the effects of fungi on mineral weathering is based on macroscopic studies. However, the ability of fungi to translocate materials, including organic acids and siderophores, to specific areas of a mineral surface leads to significant spatial heterogeneity in the weathering process. Thus, geomycologists are confronted with unique challenges of how to comprehend and quantify such a high degree of diversity and complicated arrays of interactions. Recent advances in experimental and analytical techniques have increased our ability to probe the fungal-mineral interface at the resolution necessary to decouple significant biogeochemical processes. Modern microscopy, spectroscopy, mass spectrometry, wet chemistry, and scattering techniques allow for the selective extraction of physical, chemical, and structural data at the micro- to nano-scale. These techniques offer exciting possibilities to study fungal-mineral interactions at the scale of individual hyphae. In this review, we give an overview of some of these techniques with their characteristics, advantages and limitations, and how they can be used to further our understanding of biotic mineral weathering.

Keywords
fungi, mineral, analysis
National Category
Analytical Chemistry
Identifiers
urn:nbn:se:miun:diva-10373 (URN)10.1016/j.fbr.2009.11.001 (DOI)2-s2.0-77954861346 (Scopus ID)
Available from: 2009-11-24 Created: 2009-11-23 Last updated: 2017-12-12Bibliographically approved
Nambu, K., van Hees, P. A., Jones, D. L., Vinogradoff, S. & Lundström, U. S. (2008). Composition of organic solutes and respiration in soils derived from alkaline and non-alkaline parent materials. Geoderma, 144(3-4), 468-477
Open this publication in new window or tab >>Composition of organic solutes and respiration in soils derived from alkaline and non-alkaline parent materials
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2008 (English)In: Geoderma, ISSN 0016-7061, E-ISSN 1872-6259, Vol. 144, no 3-4, p. 468-477Article in journal (Refereed) Published
Abstract [en]

Parent material greatly influences pedogenesis and soil nutrient availability and consequently we hypothesized that it would significantly affect the amount of organic solutes in soil, many of which have been implicated in rhizosphere processes linked to plant nutrient uptake. Consequently, we investigated the influence of two contrasting parent materials in which calcite was present or absent (alkaline and non-alkaline soils) on the concentrations of dissolved organic carbon (DOC), low-molecular weight organic acids (LMWOA) and glucose in soil solution. Both soils were under Norway spruce. The dynamics of LMWOAs in soil were also investigated using 14C-labelled citrate and oxalate. Some of the mineral horizons of the alkaline soils showed significantly higher concentrations of DOC, phenolics, and fumarate in soil solution and also a higher basal respiration. No major differences were seen in organic solute status in the organic horizons of the two soil types. LMWOAs were present at low concentrations in soil solution (< 1 to 25 µM). Their mineralization rate significantly decreased with soil depth, however, overall neither their concentration or half-life in soil was markedly affected by parent material. The alkaline soils had significantly higher CO2-to-soil organic C (SOC) ratios, and consequently SOC in the alkaline soils did not seem more chemically stable against mineralization. Considering possible DOC and CO2 efflux rates it was suggested that the equal or larger SOC stocks in alkaline mineral soils were most likely linked to a higher net primary productivity. In conclusion, our study found that parent material exerted only a small effect on the concentration and dynamics of organic solutes in soil solution. This suggests that in comparison to other factors (e.g. vegetation cover, climate etc) parent material may not be a major regulator of the organic solute pool in soil.

National Category
Chemical Sciences
Identifiers
urn:nbn:se:miun:diva-8341 (URN)10.1016/j.geoderma.2007.12.014 (DOI)000255343800008 ()2-s2.0-40849095772 (Scopus ID)
Note
VR-EcologyAvailable from: 2009-01-19 Created: 2009-01-19 Last updated: 2017-12-14Bibliographically approved
Vestin, J. L. K., Norström, S. H., Bylund, D., Mellander, P.-E. & Lundström, U. S. (2008). Soil solution and stream water chemistry in a forested catchment I: Dynamics. Geoderma, 144(1/2), 256-270
Open this publication in new window or tab >>Soil solution and stream water chemistry in a forested catchment I: Dynamics
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2008 (English)In: Geoderma, ISSN 0016-7061, E-ISSN 1872-6259, Vol. 144, no 1/2, p. 256-270Article in journal (Refereed) Published
Abstract [en]

Soil solution and stream water chemistry were studied during two years in a catchment in Bispgården in central Sweden (63°07′N, 16°70′E). Soil samples and soil solution were collected in a slope at two distances (10 and 80 m) from a stream. The aims were to examine interactions between recharge (podzol) and discharge (arenosol) areas and to investigate the relations between soil solution and stream water chemistry. The parent material was similar within the catchment, but the content of C and N were higher in the discharge area most likely due to the difference in hydrological conditions compared to the recharge area. Exchangeable cations and base saturation were higher in the discharge area than in the recharge area, which may be due to the higher content of C. The concentrations in soil solution of H, DOC, NO3, SO4, Al, Si, Ca and K charge area compared to the recharge area which was probably caused by transportation of elements in soil and retention due to the increased content of C. During snow melt, the concentrations in soil solution of DOC, SO4, Al, Si, Ca and K were low due to dilution and low biological activity. The concentrations were then increasing during the seasons as an effect of biological activity and mineral weathering. NO3 concentration in soil solution was found in higher concentrations during snow melting and was then diminishing during summer likely as a result of biological uptake. After a dry period followed by an intensive rain in August 2003, the stream water chemistry was markedly altered for a few days. The concentrations of H, DOC SO4, Al and Ca were increased and the concentration of Si was decreased in the stream water. It therefore appeared that the stream water mirrored the upper soil horizons in the discharge area during high flows, while reflecting the lower soil horizons and ground water during low flows.

Keywords
Catchment, soil solution
National Category
Chemical Sciences
Identifiers
urn:nbn:se:miun:diva-3614 (URN)10.1016/j.geoderma.2007.11.026 (DOI)000254473000024 ()2-s2.0-39549097317 (Scopus ID)5600 (Local ID)5600 (Archive number)5600 (OAI)
Note
VR-EcologyAvailable from: 2008-12-04 Created: 2008-11-19 Last updated: 2017-12-12Bibliographically approved
Vestin, J. L. K., Norström, S. H., Bylund, D. & Lundström, U. S. (2008). Soil solution and stream water chemistry in a forested catchment II: Influence of organic matter. Geoderma, 144(2008), 271-278
Open this publication in new window or tab >>Soil solution and stream water chemistry in a forested catchment II: Influence of organic matter
2008 (English)In: Geoderma, ISSN 0016-7061, E-ISSN 1872-6259, Vol. 144, no 2008, p. 271-278Article in journal (Refereed) Published
Abstract [en]

Differences between recharge and discharge areas in soil forming processes and nutrient conditions were observed in an earlier study of a catchment area in central Sweden (63°07′N, 16°70′E; Vestin, J.L.K., Norström, S.H., Bylund, D., Mellander, P-E., Lundström, U.S., submitted for publication to Geoderma. Soil solution and stream water chemistry in a forested catchment, I Dynamics.). To further examine the factors that determine the soil and stream water properties in the catchment area, the present study focused on the organic dynamics and the association of cations to different size fractions of organic matter. Six sampling plots were established in each of the recharge and discharge areas, respectively, with samples taken in June 2004. Dissolved organic carbon (DOC) and cation concentrations in the soil solution and stream water were determined. In the recharge area, low molecular mass (LMM) organics played an important role in transportation of several cations through the soil profile, inducing the podzolisation process by associating with Al and Fe. In the discharge area close to the stream, high molecular mass (HMM) organics appeared to play a crucial role in transportation of cations. Here the majority of recovered cations were associated with HMM organic matter, inhibiting the podzolisation process. The total concentration of C and DOC was higher than in the recharge area, and the concentration of cations increased with depth in the mineral soil. In the stream water, as in the discharge area soil solution, all carboxylic groups were associated to cations. Both Al and Fe were completely associated with the HMM DOC fraction, which indicated a rapid turnover of LMM DOC in stream water. Thus we conclude that DOC plays an important role in soil forming processes, and that its different size fractions have large effects on the transportation of elements in different soils and in stream water.

Keywords
Stream water, DOC, LMWOA, Ca, Al, Fe
National Category
Chemical Sciences
Identifiers
urn:nbn:se:miun:diva-4531 (URN)10.1016/j.geoderma.2007.11.027 (DOI)000254473000025 ()2-s2.0-39549106689 (Scopus ID)5601 (Local ID)5601 (Archive number)5601 (OAI)
Note
VR-EcologyAvailable from: 2008-12-08 Created: 2008-11-19 Last updated: 2017-12-12Bibliographically approved
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