Effect of in-situ aged and fresh biochar on soil hydraulic conditions and microbial C use under drought conditions

Abstract Biochar (BC) amendments may be suitable to increase the ecosystems resistance to drought due to their positive effects on soil water retention and availability. We investigated the effect of BC in situ ageing on water availability and microbial parameters of a grassland soil. We used soil c...

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Autores principales:	Lydia Paetsch, Carsten W. Mueller, Ingrid Kögel-Knabner, Margit von Lützow, Cyril Girardin, Cornelia Rumpel
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1563a62f2b99480ea452ccfb3c80c37a
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spelling	oai:doaj.org-article:1563a62f2b99480ea452ccfb3c80c37a2021-12-02T15:08:36ZEffect of in-situ aged and fresh biochar on soil hydraulic conditions and microbial C use under drought conditions10.1038/s41598-018-25039-x2045-2322https://doaj.org/article/1563a62f2b99480ea452ccfb3c80c37a2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25039-xhttps://doaj.org/toc/2045-2322Abstract Biochar (BC) amendments may be suitable to increase the ecosystems resistance to drought due to their positive effects on soil water retention and availability. We investigated the effect of BC in situ ageing on water availability and microbial parameters of a grassland soil. We used soil containing 13C labeled BC and determined its water holding capacity, microbial biomass and activity during a 3 months incubation under optimum and drought conditions. Our incubation experiment comprised three treatments: soil without BC (Control), soil containing aged BC (BCaged) and soil containing fresh BC (BCfresh), under optimum soil water (pF 1.8) and drought conditions (pF 3.5). Under optimum water as well as drought conditions, soils containing BC showed higher soil organic carbon (SOC) mineralization as compared to control soil. Moreover, BC effects on the soil water regime increase upon in situ aging. Native SOC mineralization increased most for soils containing BCaged. The BCaged led to improved C use under drought as compared to the other treatments. We conclude that BC addition to soils can ameliorate their water regime, especially under drought conditions. This beneficial effect of BC increases upon its aging, which also improved native substrate availability.Lydia PaetschCarsten W. MuellerIngrid Kögel-KnabnerMargit von LützowCyril GirardinCornelia RumpelNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lydia Paetsch Carsten W. Mueller Ingrid Kögel-Knabner Margit von Lützow Cyril Girardin Cornelia Rumpel Effect of in-situ aged and fresh biochar on soil hydraulic conditions and microbial C use under drought conditions
description	Abstract Biochar (BC) amendments may be suitable to increase the ecosystems resistance to drought due to their positive effects on soil water retention and availability. We investigated the effect of BC in situ ageing on water availability and microbial parameters of a grassland soil. We used soil containing 13C labeled BC and determined its water holding capacity, microbial biomass and activity during a 3 months incubation under optimum and drought conditions. Our incubation experiment comprised three treatments: soil without BC (Control), soil containing aged BC (BCaged) and soil containing fresh BC (BCfresh), under optimum soil water (pF 1.8) and drought conditions (pF 3.5). Under optimum water as well as drought conditions, soils containing BC showed higher soil organic carbon (SOC) mineralization as compared to control soil. Moreover, BC effects on the soil water regime increase upon in situ aging. Native SOC mineralization increased most for soils containing BCaged. The BCaged led to improved C use under drought as compared to the other treatments. We conclude that BC addition to soils can ameliorate their water regime, especially under drought conditions. This beneficial effect of BC increases upon its aging, which also improved native substrate availability.
format	article
author	Lydia Paetsch Carsten W. Mueller Ingrid Kögel-Knabner Margit von Lützow Cyril Girardin Cornelia Rumpel
author_facet	Lydia Paetsch Carsten W. Mueller Ingrid Kögel-Knabner Margit von Lützow Cyril Girardin Cornelia Rumpel
author_sort	Lydia Paetsch
title	Effect of in-situ aged and fresh biochar on soil hydraulic conditions and microbial C use under drought conditions
title_short	Effect of in-situ aged and fresh biochar on soil hydraulic conditions and microbial C use under drought conditions
title_full	Effect of in-situ aged and fresh biochar on soil hydraulic conditions and microbial C use under drought conditions
title_fullStr	Effect of in-situ aged and fresh biochar on soil hydraulic conditions and microbial C use under drought conditions
title_full_unstemmed	Effect of in-situ aged and fresh biochar on soil hydraulic conditions and microbial C use under drought conditions
title_sort	effect of in-situ aged and fresh biochar on soil hydraulic conditions and microbial c use under drought conditions
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/1563a62f2b99480ea452ccfb3c80c37a
work_keys_str_mv	AT lydiapaetsch effectofinsituagedandfreshbiocharonsoilhydraulicconditionsandmicrobialcuseunderdroughtconditions AT carstenwmueller effectofinsituagedandfreshbiocharonsoilhydraulicconditionsandmicrobialcuseunderdroughtconditions AT ingridkogelknabner effectofinsituagedandfreshbiocharonsoilhydraulicconditionsandmicrobialcuseunderdroughtconditions AT margitvonlutzow effectofinsituagedandfreshbiocharonsoilhydraulicconditionsandmicrobialcuseunderdroughtconditions AT cyrilgirardin effectofinsituagedandfreshbiocharonsoilhydraulicconditionsandmicrobialcuseunderdroughtconditions AT corneliarumpel effectofinsituagedandfreshbiocharonsoilhydraulicconditionsandmicrobialcuseunderdroughtconditions
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Effect of in-situ aged and fresh biochar on soil hydraulic conditions and microbial C use under drought conditions

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