Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central China

Differences in soil CO2 emissions between no-tillage (NT) and conventional intensive tillage have been well assessed in paddy fields, but few studies evaluate the effects of different NT modes on soil CO2 emissions. Therefore, a field experiment was conducted to assess paddy soil CO2 flux as affecte...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Guo,L.J, Zhang,R.D, Zhang,Z.S, Cao,C.G, Li,C.F
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2015
Materias:	Biomass CO2 flux dissolved organic C no-tillage ridge tillage
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000300015
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-95162015000300015
record_format	dspace
spelling	oai:scielo:S0718-951620150003000152015-10-14Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central ChinaGuo,L.JZhang,R.DZhang,Z.SCao,C.GLi,C.F Biomass CO2 flux dissolved organic C no-tillage ridge tillage Differences in soil CO2 emissions between no-tillage (NT) and conventional intensive tillage have been well assessed in paddy fields, but few studies evaluate the effects of different NT modes on soil CO2 emissions. Therefore, a field experiment was conducted to assess paddy soil CO2 flux as affected by different NT modes ENT#091;ridge cultivation with NT (RNT) and conventional flat cultivation with NT (FNT)ENT#093; and its influencing factors during the 2012-2014 rice growing seasons in central China. Soil CO2 fluxes were determined by a LI-8100A soil CO2 flux system. The mean soil CO2 fluxes on the ridges in the RNT treatment increased by 49%, 52% and 35% compared with those on the flat land in the FNT treatment in 2012, 2013 and 2014, respectively. Cumulative CO2 its emissions ranged from 1042 g m-2 to 1489 g m-2 from the RNT treatment, and from 724 g m-2 to 1016 g m-2 for the FNT treatment. Moreover, soil CO2 emissions were significantly correlated with dissolved organic C, aboveground biomass and root biomass. Therefore, our results suggesting that annual rice-fallow-oilseed rape rotation should be considered to assess the effects of tillage systems on soil CO2 emission.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.15 n.3 20152015-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000300015en10.4067/S0718-95162015005000050
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Biomass CO2 flux dissolved organic C no-tillage ridge tillage
spellingShingle	Biomass CO2 flux dissolved organic C no-tillage ridge tillage Guo,L.J Zhang,R.D Zhang,Z.S Cao,C.G Li,C.F Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central China
description	Differences in soil CO2 emissions between no-tillage (NT) and conventional intensive tillage have been well assessed in paddy fields, but few studies evaluate the effects of different NT modes on soil CO2 emissions. Therefore, a field experiment was conducted to assess paddy soil CO2 flux as affected by different NT modes ENT#091;ridge cultivation with NT (RNT) and conventional flat cultivation with NT (FNT)ENT#093; and its influencing factors during the 2012-2014 rice growing seasons in central China. Soil CO2 fluxes were determined by a LI-8100A soil CO2 flux system. The mean soil CO2 fluxes on the ridges in the RNT treatment increased by 49%, 52% and 35% compared with those on the flat land in the FNT treatment in 2012, 2013 and 2014, respectively. Cumulative CO2 its emissions ranged from 1042 g m-2 to 1489 g m-2 from the RNT treatment, and from 724 g m-2 to 1016 g m-2 for the FNT treatment. Moreover, soil CO2 emissions were significantly correlated with dissolved organic C, aboveground biomass and root biomass. Therefore, our results suggesting that annual rice-fallow-oilseed rape rotation should be considered to assess the effects of tillage systems on soil CO2 emission.
author	Guo,L.J Zhang,R.D Zhang,Z.S Cao,C.G Li,C.F
author_facet	Guo,L.J Zhang,R.D Zhang,Z.S Cao,C.G Li,C.F
author_sort	Guo,L.J
title	Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central China
title_short	Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central China
title_full	Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central China
title_fullStr	Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central China
title_full_unstemmed	Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central China
title_sort	effects of different no-tillage modes on soil co2 fluxes from paddy fields in central china
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000300015
work_keys_str_mv	AT guolj effectsofdifferentnotillagemodesonsoilco2fluxesfrompaddyfieldsincentralchina AT zhangrd effectsofdifferentnotillagemodesonsoilco2fluxesfrompaddyfieldsincentralchina AT zhangzs effectsofdifferentnotillagemodesonsoilco2fluxesfrompaddyfieldsincentralchina AT caocg effectsofdifferentnotillagemodesonsoilco2fluxesfrompaddyfieldsincentralchina AT licf effectsofdifferentnotillagemodesonsoilco2fluxesfrompaddyfieldsincentralchina
_version_	1714206512712253440

Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central China

Ejemplares similares