Carbon and nitrogen cycling in a lead polluted grassland evaluated using stable isotopes (δ13C and δ15N) and microbial, plant and soil parameters

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Fältnamn	Indikatorer	Metadata
000		03515naa a2200541 4500
001		oai:DiVA.org:oru-81647
003		SwePub
008		200508s2020 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-816472 URI
024	7	a https://doi.org/10.1007/s11104-020-04467-72 DOI
040		a (SwePub)oru
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Rijk, Ingrid. J. C.,d 1985-u Örebro universitet,Institutionen för naturvetenskap och teknik4 aut0 (Swepub:oru)irk
245	1 0	a Carbon and nitrogen cycling in a lead polluted grassland evaluated using stable isotopes (δ13C and δ15N) and microbial, plant and soil parameters
264		c 2020-03-14
264	1	b Kluwer Academic Publishers,c 2020
338		a print2 rdacarrier
520		a Aims: Carbon (C) and nitrogen (N) cycling are key ecosystem functions potentially altered by heavy metal pollution. We used an ecosystem approach to study the long-term effect of lead (Pb) on C and N cycles in a natural grassland in a former shooting range.Methods: Microbial activity was evaluated by substrate-induced respiration (SIR) in situ, adding isotopically labelled C4-sugar to the soil. C and N contents and natural abundance of isotopes were measured in grass leaves, soil and microbial biomass together with root biomass.Results: A reduced microbial activity and microbial biomass per area, together with a higher soil C stock and C:N ratio suggested a lower microbial decomposition in high Pb compared to low Pb areas. A more closed N cycle in the high Pb area was indicated by 2–3‰ lower δ15N in leaves and soil compared to low Pb areas. Higher δ13C in leaves and higher root biomass but similar leaf nutrient contents indicated plant responses and adaptions to the high Pb. Conclusions: The applied ecosystem approach revealed that Pb slowed down the C and N cycles, possibly by indirect effects rather than by direct toxicity. The ecosystem seems to have adapted to altered conditions.
650	7	a LANTBRUKSVETENSKAPERx Lantbruksvetenskap, skogsbruk och fiskex Markvetenskap0 (SwePub)401062 hsv//swe
650	7	a AGRICULTURAL SCIENCESx Agriculture, Forestry and Fisheriesx Soil Science0 (SwePub)401062 hsv//eng
653		a Ecological risk assessment
653		a Field studies
653		a Heavy metal contamination
653		a Soil microbial respiration
653		a Soil nutrient cycling
653		a Stable isotopes
653		a carbon cycle
653		a carbon isotope
653		a decomposition
653		a ecosystem approach
653		a ecosystem function
653		a grassland
653		a lead
653		a microbial activity
653		a nitrogen cycle
653		a nitrogen isotope
653		a soil pollution
653		a stable isotope
700	1	a Ekblad, Alf,d 1957-u Örebro universitet,Institutionen för naturvetenskap och teknik4 aut0 (Swepub:oru)afed
710	2	a Örebro universitetb Institutionen för naturvetenskap och teknik4 org
773	0	t Plant and Soild : Kluwer Academic Publishersg 449:1-2, s. 249-266q 449:1-2<249-266x 0032-079Xx 1573-5036
856	4	u https://doi.org/10.1007/s11104-020-04467-7y Fulltext
856	4	u https://link.springer.com/content/pdf/10.1007/s11104-020-04467-7.pdf
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-81647
856	4 8	u https://doi.org/10.1007/s11104-020-04467-7

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