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Long-term soil orga...
Long-term soil organic carbon changes after cropland conversion to grazed grassland in Southern Sweden
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- Johansson, Anna (författare)
- Stockholms universitet,Institutionen för naturgeografi
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- Livsey, John, 1983- (författare)
- Sveriges lantbruksuniversitet,Stockholms universitet,Institutionen för naturgeografi,Bolincentret för klimatforskning (tills m KTH & SMHI),Swedish University of Agricultural Sciences, Sweden,Institutionen för mark och miljö,Department of Soil and Environment,Stockholm University
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- Guasconi, Daniela, 1992- (författare)
- Stockholms universitet,Institutionen för naturgeografi,Bolincentret för klimatforskning (tills m KTH & SMHI)
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- Hugelius, Gustaf, 1980- (författare)
- Stockholms universitet,Institutionen för naturgeografi,Bolincentret för klimatforskning (tills m KTH & SMHI)
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- Lindborg, Regina, 1966- (författare)
- Stockholms universitet,Institutionen för naturgeografi,Stockholm Resilience Centre,Bolincentret för klimatforskning (tills m KTH & SMHI)
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- Manzoni, Stefano, 1979- (författare)
- Stockholms universitet,Institutionen för naturgeografi,Bolincentret för klimatforskning (tills m KTH & SMHI)
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(creator_code:org_t)
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- 2024
- 2024
- Engelska.
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Ingår i: Soil use and management. - 0266-0032 .- 1475-2743. ; 40:1
- Relaterad länk:
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https://doi.org/10.1...
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https://pub.epsilon.... (primary) (Raw object) (free)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://res.slu.se/i...
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Abstract
Ämnesord
Stäng
- There is growing awareness of the potential value of agricultural land for climate change mitigation. In Sweden, cropland areas have decreased by approximately 30% over recent decades, creating opportunities for these former croplands to be managed for climate change mitigation by increasing soil organic carbon (SOC) stocks. One potential land-use change is conversion of cropland to grazed grasslands, but the long-term effect of such change in management is not well understood and likely varies with soil type and site-specific conditions. Through sampling of mineral and peatland soils within a 75-year chronosequence of land converted from crop production to grazed grassland, we assessed how time since conversion, catenary position, and soil depth affected SOC storage. The SOC stocks calculated at an equivalent soil or ash mass increased through time since conversion in mineral soils at all topographic positions, at a rate of ~0.65% year−1. Soils at low topographic positions gained the most carbon. Peat SOC stock gains after conversion were large, but only marginally significant and only when calculated at an equivalent ash mass. We conclude that the conversion of mineral soil to grazed grassland promotes SOC accumulation at our sites, but climate change mitigation potential would need to be evaluated through a full greenhouse gas balance.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Markvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Soil Science (hsv//eng)
- LANTBRUKSVETENSKAPER -- Annan lantbruksvetenskap -- Miljö- och naturvårdsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Other Agricultural Sciences -- Environmental Sciences related to Agriculture and Land-use (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Nyckelord
- catenary position
- chronosequence
- climate change mitigation
- grazed grassland
- soil organic carbon
- topographic wetness index
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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