Soil Carbon Modelling in Salix Biomass Plantations: Variety Determines Carbon Sequestration and Climate Impacts

Short-rotation coppice (SRC) Salix plantations have the potential to provide fast-growing biomass feedstock with significant soil and climate mitigation benefits. Salix varieties exhibit significant variation in their physiological traits, growth patterns and so...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Saurav Kalita, Hanna Karlsson Potter, Martin Weih, Christel Baum, Åke Nordberg, Per-Anders Hansson
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	biomass production life cycle assessment climate impact soil organic carbon <i>Salix</i> willow Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/373c82023ba84d6d8dc725065a103097
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:373c82023ba84d6d8dc725065a103097
record_format	dspace
spelling	oai:doaj.org-article:373c82023ba84d6d8dc725065a1030972021-11-25T17:38:18ZSoil Carbon Modelling in <i>Salix</i> Biomass Plantations: Variety Determines Carbon Sequestration and Climate Impacts10.3390/f121115291999-4907https://doaj.org/article/373c82023ba84d6d8dc725065a1030972021-11-01T00:00:00Zhttps://www.mdpi.com/1999-4907/12/11/1529https://doaj.org/toc/1999-4907Short-rotation coppice (SRC) <i>Salix</i> plantations have the potential to provide fast-growing biomass feedstock with significant soil and climate mitigation benefits. <i>Salix</i> varieties exhibit significant variation in their physiological traits, growth patterns and soil ecology—but the effects of these variations have rarely been studied from a systems perspective. This study analyses the influence of variety on soil organic carbon (SOC) dynamics and climate impacts from <i>Salix</i> cultivation for heat production for a Swedish site with specific conditions. Soil carbon modelling was combined with a life cycle assessment (LCA) approach to quantify SOC sequestration and climate impacts over a 50-year period. The analysis used data from a Swedish field trial of six <i>Salix</i> varieties grown under fertilized and unfertilized treatments on Vertic Cambisols during 2001–2018. The <i>Salix</i> systems were compared with a reference case where heat is produced from natural gas and green fallow was the land use alternative. Climate impacts were determined using time-dependent LCA methodology—on a land-use (per hectare) and delivered energy unit (per MJ<sub>heat</sub>) basis. All <i>Salix</i> varieties and treatments increased SOC, but the magnitude depended on the variety. Fertilization led to lower carbon sequestration than the equivalent unfertilized case. There was no clear relationship between biomass yield and SOC increase. In comparison with reference cases, all <i>Salix</i> varieties had significant potential for climate change mitigation. From a land-use perspective, high yield was the most important determining factor, followed by SOC sequestration, therefore high-yielding fertilized varieties such as ‘Tordis’, ‘Tora’ and ‘Björn’ performed best. On an energy-delivered basis, SOC sequestration potential was the determining factor for the climate change mitigation effect, with unfertilized ‘Jorr’ and ‘Loden’ outperforming the other varieties. These results show that <i>Salix</i> variety has a strong influence on SOC sequestration potential, biomass yield, growth pattern, response to fertilization and, ultimately, climate impact.Saurav KalitaHanna Karlsson PotterMartin WeihChristel BaumÅke NordbergPer-Anders HanssonMDPI AGarticlebiomass productionlife cycle assessmentclimate impactsoil organic carbon<i>Salix</i>willowPlant ecologyQK900-989ENForests, Vol 12, Iss 1529, p 1529 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	biomass production life cycle assessment climate impact soil organic carbon <i>Salix</i> willow Plant ecology QK900-989
spellingShingle	biomass production life cycle assessment climate impact soil organic carbon <i>Salix</i> willow Plant ecology QK900-989 Saurav Kalita Hanna Karlsson Potter Martin Weih Christel Baum Åke Nordberg Per-Anders Hansson Soil Carbon Modelling in <i>Salix</i> Biomass Plantations: Variety Determines Carbon Sequestration and Climate Impacts
description	Short-rotation coppice (SRC) <i>Salix</i> plantations have the potential to provide fast-growing biomass feedstock with significant soil and climate mitigation benefits. <i>Salix</i> varieties exhibit significant variation in their physiological traits, growth patterns and soil ecology—but the effects of these variations have rarely been studied from a systems perspective. This study analyses the influence of variety on soil organic carbon (SOC) dynamics and climate impacts from <i>Salix</i> cultivation for heat production for a Swedish site with specific conditions. Soil carbon modelling was combined with a life cycle assessment (LCA) approach to quantify SOC sequestration and climate impacts over a 50-year period. The analysis used data from a Swedish field trial of six <i>Salix</i> varieties grown under fertilized and unfertilized treatments on Vertic Cambisols during 2001–2018. The <i>Salix</i> systems were compared with a reference case where heat is produced from natural gas and green fallow was the land use alternative. Climate impacts were determined using time-dependent LCA methodology—on a land-use (per hectare) and delivered energy unit (per MJ<sub>heat</sub>) basis. All <i>Salix</i> varieties and treatments increased SOC, but the magnitude depended on the variety. Fertilization led to lower carbon sequestration than the equivalent unfertilized case. There was no clear relationship between biomass yield and SOC increase. In comparison with reference cases, all <i>Salix</i> varieties had significant potential for climate change mitigation. From a land-use perspective, high yield was the most important determining factor, followed by SOC sequestration, therefore high-yielding fertilized varieties such as ‘Tordis’, ‘Tora’ and ‘Björn’ performed best. On an energy-delivered basis, SOC sequestration potential was the determining factor for the climate change mitigation effect, with unfertilized ‘Jorr’ and ‘Loden’ outperforming the other varieties. These results show that <i>Salix</i> variety has a strong influence on SOC sequestration potential, biomass yield, growth pattern, response to fertilization and, ultimately, climate impact.
format	article
author	Saurav Kalita Hanna Karlsson Potter Martin Weih Christel Baum Åke Nordberg Per-Anders Hansson
author_facet	Saurav Kalita Hanna Karlsson Potter Martin Weih Christel Baum Åke Nordberg Per-Anders Hansson
author_sort	Saurav Kalita
title	Soil Carbon Modelling in <i>Salix</i> Biomass Plantations: Variety Determines Carbon Sequestration and Climate Impacts
title_short	Soil Carbon Modelling in <i>Salix</i> Biomass Plantations: Variety Determines Carbon Sequestration and Climate Impacts
title_full	Soil Carbon Modelling in <i>Salix</i> Biomass Plantations: Variety Determines Carbon Sequestration and Climate Impacts
title_fullStr	Soil Carbon Modelling in <i>Salix</i> Biomass Plantations: Variety Determines Carbon Sequestration and Climate Impacts
title_full_unstemmed	Soil Carbon Modelling in <i>Salix</i> Biomass Plantations: Variety Determines Carbon Sequestration and Climate Impacts
title_sort	soil carbon modelling in <i>salix</i> biomass plantations: variety determines carbon sequestration and climate impacts
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/373c82023ba84d6d8dc725065a103097
work_keys_str_mv	AT sauravkalita soilcarbonmodellinginisalixibiomassplantationsvarietydeterminescarbonsequestrationandclimateimpacts AT hannakarlssonpotter soilcarbonmodellinginisalixibiomassplantationsvarietydeterminescarbonsequestrationandclimateimpacts AT martinweih soilcarbonmodellinginisalixibiomassplantationsvarietydeterminescarbonsequestrationandclimateimpacts AT christelbaum soilcarbonmodellinginisalixibiomassplantationsvarietydeterminescarbonsequestrationandclimateimpacts AT akenordberg soilcarbonmodellinginisalixibiomassplantationsvarietydeterminescarbonsequestrationandclimateimpacts AT perandershansson soilcarbonmodellinginisalixibiomassplantationsvarietydeterminescarbonsequestrationandclimateimpacts
_version_	1718412158562205696

Soil Carbon Modelling in <i>Salix</i> Biomass Plantations: Variety Determines Carbon Sequestration and Climate Impacts

Ejemplares similares