Search: id:"swepub:oai:DiVA.org:oru-105742" >
Effects of copper c...
Effects of copper contamination on N cycling microbial guilds and plant performance in two contrasting grassland soils
-
- Rijk, Ingrid, 1985- (author)
- Örebro universitet,Institutionen för naturvetenskap och teknik,Structor Miljöteknik AB, Örebro, Sweden
-
- Berkelund, Linn (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology
-
- Ekblad, Alf, 1957- (author)
- Örebro universitet,Institutionen för naturvetenskap och teknik,Örebro University
-
show more...
-
- Hallin, Sara (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology
-
- Berggren Kleja, Dan (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment,Swedish Geotechnical Institute (SGI)
-
- Taylor, Astrid (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology
-
- Viketoft, Maria (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology
-
- Jones, Christopher (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology
-
show less...
-
(creator_code:org_t)
-
- Elsevier, 2023
- 2023
- English.
-
In: Soil Biology and Biochemistry. - : Elsevier. - 0038-0717 .- 1879-3428. ; 180
- Related links:
-
https://doi.org/10.1...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://res.slu.se/i...
-
show less...
Abstract
Subject headings
Close
- Heavy metal pollution has important effects on ecosystem nitrogen (N) cycling, but factors driving differences between the direction, onset and intensity of responses are poorly understood. We used two contrasting grassland soils to examine the effects of copper (Cu) on the abundance and activity of N cycling microbial guilds and plant responses, including plant delta 15N as an integrator of the N cycle. A low pH sandy soil and a high pH sandy loam soil were aged two years in outdoor mesocosms with copper (Cu) treatments of background, 200, 400 or 1000 mg kg-1 Cu. After two years, increased Cu treatments resulted in significantly lower abundances of ammonia oxidizing archaea, Nitrospira nitrite oxidizing bacteria (NOB), potential ammonia oxidation rates and plant biomass in both soils. Plants possessed significantly increased N content and enriched shoot delta 15N in with higher Cu in both soils. While abundances of ammonia oxidizing bacteria were unaffected by Cu, the response among Nitrobacter NOB and denitrifiers and plant delta 13C differed between the two soils. In contrast to plants, differences in the intensity and direction of microbial guild responses were not explained by increasing soluble Cu but rather shaped by soil type. This indicates that the two soils differed in metal bioavailability to plants, as well as harbored microbial communities with inherent differences in metal sensitivity. Furthermore, effects of increasing Cu on microbial N-cycling guilds became more apparent with longer incubation time, emphasizing the importance of long-term studies to assess important ecosystem effects of Cu contamination. Taken together, we conclude that a combination of plant and microbial responses can give better insights on how Cu is affecting the N cycle in polluted soils.
Subject headings
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Markvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Soil Science (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Keyword
- Heavy metals
- Soil contamination
- Functional gene abundance
- Nitrification
- Denitrification
- Stable isotopes
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Rijk, Ingrid, 19 ...
-
Berkelund, Linn
-
Ekblad, Alf, 195 ...
-
Hallin, Sara
-
Berggren Kleja, ...
-
Taylor, Astrid
-
show more...
-
Viketoft, Maria
-
Jones, Christoph ...
-
show less...
- About the subject
-
- AGRICULTURAL SCIENCES
-
AGRICULTURAL SCI ...
-
and Agriculture Fore ...
-
and Soil Science
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Earth and Relate ...
-
and Environmental Sc ...
- Articles in the publication
-
Soil Biology and ...
- By the university
-
Örebro University
-
Swedish University of Agricultural Sciences