Effect of Acid Deposition on Quantity and Quality of Dissolved Organic Matter in Soil-Water.
(2011) In Environmental Science & Technology 45(11). p.4733-4739- Abstract
- The aim of this study was to explore how acid deposition may affect the concentration and quality of dissolved organic matter (DOM) in soil-water. This was done by a small-scale acidification experiment during two years where 0.5 × 0.5 m(2) plots were artificially irrigated with water with different sulfuric acid content, and soil-water was sampled using zero-tension lysimeters under the O-horizon. The DOM was characterized using absorbance, fluorescence, and size exclusion chromatography analyses. Our results showed lower mobility of DOM in the high acid treatment. At the same time, there was a significant change in the DOM quality. Soil-water in the high acid treatment exhibited DOM that was less colored, less hydrophobic, less aromatic,... (More)
- The aim of this study was to explore how acid deposition may affect the concentration and quality of dissolved organic matter (DOM) in soil-water. This was done by a small-scale acidification experiment during two years where 0.5 × 0.5 m(2) plots were artificially irrigated with water with different sulfuric acid content, and soil-water was sampled using zero-tension lysimeters under the O-horizon. The DOM was characterized using absorbance, fluorescence, and size exclusion chromatography analyses. Our results showed lower mobility of DOM in the high acid treatment. At the same time, there was a significant change in the DOM quality. Soil-water in the high acid treatment exhibited DOM that was less colored, less hydrophobic, less aromatic, and of lower molecular weight, compared to the low acid treatment. This supports the hypothesis that reduction in sulfur deposition is an important driver behind the ongoing brownification of surface waters in many regions. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1973365
- author
- Ekström, Sara LU ; Kritzberg, Emma LU ; Kleja, Dan B ; Larsson, Niklas LU ; Nilsson, Anders LU ; Granéli, Wilhelm LU and Bergkvist, Bo LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Environmental Science & Technology
- volume
- 45
- issue
- 11
- pages
- 4733 - 4739
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000291128700013
- pmid:21528901
- scopus:79957792923
- pmid:21528901
- ISSN
- 1520-5851
- DOI
- 10.1021/es104126f
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Plant Ecology and Systematics (Closed 2011) (011004000), Analytical Chemistry (S/LTH) (011001004), Aquatic Ecology (432112234)
- id
- 387affbf-183b-4dc0-a159-bbfa22993360 (old id 1973365)
- date added to LUP
- 2016-04-01 13:02:05
- date last changed
- 2024-05-09 01:18:13
@article{387affbf-183b-4dc0-a159-bbfa22993360, abstract = {{The aim of this study was to explore how acid deposition may affect the concentration and quality of dissolved organic matter (DOM) in soil-water. This was done by a small-scale acidification experiment during two years where 0.5 × 0.5 m(2) plots were artificially irrigated with water with different sulfuric acid content, and soil-water was sampled using zero-tension lysimeters under the O-horizon. The DOM was characterized using absorbance, fluorescence, and size exclusion chromatography analyses. Our results showed lower mobility of DOM in the high acid treatment. At the same time, there was a significant change in the DOM quality. Soil-water in the high acid treatment exhibited DOM that was less colored, less hydrophobic, less aromatic, and of lower molecular weight, compared to the low acid treatment. This supports the hypothesis that reduction in sulfur deposition is an important driver behind the ongoing brownification of surface waters in many regions.}}, author = {{Ekström, Sara and Kritzberg, Emma and Kleja, Dan B and Larsson, Niklas and Nilsson, Anders and Granéli, Wilhelm and Bergkvist, Bo}}, issn = {{1520-5851}}, language = {{eng}}, number = {{11}}, pages = {{4733--4739}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Environmental Science & Technology}}, title = {{Effect of Acid Deposition on Quantity and Quality of Dissolved Organic Matter in Soil-Water.}}, url = {{http://dx.doi.org/10.1021/es104126f}}, doi = {{10.1021/es104126f}}, volume = {{45}}, year = {{2011}}, }