Field-scale assessment of direct and indirect effects of soil texture on organic matter mineralization during a dry summer

↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Sökning: WFRF:(Li Xiaolin) > Field-scale assessm...

Field-scale assessment of direct and indirect effects of soil texture on organic matter mineralization during a dry summer

Li, H. (författare): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment,Ghent University,Research Group of Soil Fertility and Nutrient Management, Department of Environment, Ghent University, Coupure Links 653, Ghent, 9000, Belgium

Françoys, A. (författare): Isotope Bioscience Laboratory, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, Ghent, 9000, Belgium

Wang, Xiaolin (författare): Mälardalens universitet,Framtidens energi

visa fler...

Zhang, S. (författare): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,SLU Artdatabanken,Swedish Species Information Centre,SLU Swedish Species Information Center, Swedish University of Agricultural Sciences, Uppsala, 75007, Sweden

Mendoza, O. (författare): School of Architecture, Civil and Environmental Engineering EPFL, Lausanne, 1015, Switzerland

De Neve, S. (författare): Research Group of Soil Fertility and Nutrient Management, Department of Environment, Ghent University, Coupure Links 653, Ghent, 9000, Belgium

Dewitte, K. (författare): Department of Plants and Crops, Ghent University, Coupure Links 653, Ghent, 9000, Belgium

Sleutel, S. (författare): Research Group of Soil Fertility and Nutrient Management, Department of Environment, Ghent University, Coupure Links 653, Ghent, 9000, Belgium

visa färre...

(creator_code:org_t)

Elsevier B.V. 2023
2023
Engelska.
Ingår i: Science of the Total Environment. - : Elsevier B.V.. - 0048-9697 .- 1879-1026. ; 899

Relaterad länk:: https://urn.kb.se/re...; visa fler...; https://doi.org/10.1...; https://res.slu.se/i...; visa färre...

Tidskriftsartikel (refereegranskat)

Abstract Ämnesord

Stäng

Soil texture plays a crucial role in organic matter (OM) mineralization through both direct interactions with minerals and indirect effects on soil moisture. Separating these effects could enhance the modelling of soil organic carbon (SOC) dynamics under climate change scenarios. However, the attempts have been limited small-scale experiments. Here, we studied the effects of soil texture on added OM mineralization in loamy sand, loam and silt loam soils in nine agricultural fields in Flanders, Belgium. Soil moisture, temperature, groundwater table depth and the mineralization of 13C-labeled ryegrass were monitored in buried mesocosms for approximately three months during a dry summer. Ryegrass-C mineralization was lowest in the loamy sand (39 ± 7 %) followed by silt loam (48 ± 7 %) and loam (63 ± 5 %) soils, challenging the current clay%-based moderation of C-mineralization rates in soil models. Soil temperature was not influenced by soil texture, whereas soil moisture was indeed dependent on soil texture. It appears that capillarity sustained upward water supply from groundwater to the topsoil in loam and silt loam soils but not in loamy sand soil, although this difference in capillary rise could not fully explain the higher moisture content in loam than that in silt loam soils. Additionally, soil texture only impacted remnant added ryegrass pieces (>500 μm) but not the finer ryegrass-derived SOC (<500 μm), which might point at the important indirect control of texture on OM mineralization during prolonged summer drought. However, these effects are only manifested during drought when no other factors (e.g., groundwater depth or subsurface water flows) exert an overriding impact on the soil water balance. Overall, our findings highlight the need to properly incorporate the indirect effects of soil texture on OM mineralization into soil carbon models to accurately predict soil C stocks under future climate change scenarios.

Ämnesord

LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Markvetenskap (hsv//swe)
AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Soil Science (hsv//eng)

Nyckelord

Capillary rise
Groundwater
Soil moisture
Soil organic carbon
Stable carbon isotope
Biogeochemistry
Climate change
Climate models
Drought
Mineralogy
Organic carbon
Silt
Textures
Water supply
'Dry' [
Climate change scenarios
Indirect effects
Loamy sand
Organic matter mineralization
Silt loam soils
Soil textures
Stable carbon isotopes
agricultural soil
experimental study
mineralization
organic matter
silty loam
soil carbon
soil organic matter
soil texture
stable isotope
summer

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

Hitta via bibliotek

Science of the Total Environment (Sök värdpublikationen i LIBRIS)

Till lärosätets databas

Hitta mer i SwePub

Av författaren/redakt...: Li, H.; Françoys, A.; Wang, Xiaolin; Zhang, S.; Mendoza, O.; De Neve, S.; visa fler...; Dewitte, K.; Sleutel, S.; visa färre...

Om ämnet

LANTBRUKSVETENSKAPER: LANTBRUKSVETENSK ...; och Lantbruksvetensk ...; och Markvetenskap

Artiklar i publikationen: Science of the T ...

Av lärosätet: Mälardalens universitet; Sveriges Lantbruksuniversitet

Sök utanför SwePub

Sök vidare i:: Google; Google Book Search; Google Scholar

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

LIBRIS.kb.se