Dynamics of soil organic carbon and dissolved organic carbon in Robina pseudoacacia forests

We investigated the variation patterns of organic carbon in soil and soil solution of four selected Robiniapseudoacacia forests aged 10a, 25a, 31a, and 35a, as well as a contrastive tillage site in a similar topography condition in Loess Plateau, China. The purpose was to explore the dynamics of soi...

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Autores principales:	Lv,H, Liang,Z
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2012
Materias:	depth distribution soil organic carbon dynamics active organic carbon (AOC) UV absorption at 280 nm
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000400010
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spelling	oai:scielo:S0718-951620120004000102013-04-02Dynamics of soil organic carbon and dissolved organic carbon in Robina pseudoacacia forestsLv,HLiang,Z depth distribution soil organic carbon dynamics active organic carbon (AOC) UV absorption at 280 nm We investigated the variation patterns of organic carbon in soil and soil solution of four selected Robiniapseudoacacia forests aged 10a, 25a, 31a, and 35a, as well as a contrastive tillage site in a similar topography condition in Loess Plateau, China. The purpose was to explore the dynamics of soil organic carbon (SOC) and dissolved organic carbon (DOC) in R. pseudoacacia forests. On average depths of 20, 40, and 60 cm, SOC, active organic carbon (AOC), and DOC gradually increase with increased forest age. After forest restoration, the AOC/SOC ratio and resistant organic carbon/SOC ratio increase, whereas the slow organic carbon/SOC ratio decreases. The soil solutions in the subsoil layer have low DOC:DON ratio and high UV absorption at 280 nm. At 40 and 60 cm, the depth distribution is indicated as special low values for DOC concentration in the C99 site (10a site), as well as for soil water content, SOC, and AOC in the 25a forest site. Our results provide evidence that during forest restoration, SOC does not consistently increase linearly. The change points of different SOC proportions and DOC concentrations at various depths are not same, i.e., asynchronous changes exist.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.12 n.4 20122012-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000400010en10.4067/S0718-95162012005000030
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	depth distribution soil organic carbon dynamics active organic carbon (AOC) UV absorption at 280 nm
spellingShingle	depth distribution soil organic carbon dynamics active organic carbon (AOC) UV absorption at 280 nm Lv,H Liang,Z Dynamics of soil organic carbon and dissolved organic carbon in Robina pseudoacacia forests
description	We investigated the variation patterns of organic carbon in soil and soil solution of four selected Robiniapseudoacacia forests aged 10a, 25a, 31a, and 35a, as well as a contrastive tillage site in a similar topography condition in Loess Plateau, China. The purpose was to explore the dynamics of soil organic carbon (SOC) and dissolved organic carbon (DOC) in R. pseudoacacia forests. On average depths of 20, 40, and 60 cm, SOC, active organic carbon (AOC), and DOC gradually increase with increased forest age. After forest restoration, the AOC/SOC ratio and resistant organic carbon/SOC ratio increase, whereas the slow organic carbon/SOC ratio decreases. The soil solutions in the subsoil layer have low DOC:DON ratio and high UV absorption at 280 nm. At 40 and 60 cm, the depth distribution is indicated as special low values for DOC concentration in the C99 site (10a site), as well as for soil water content, SOC, and AOC in the 25a forest site. Our results provide evidence that during forest restoration, SOC does not consistently increase linearly. The change points of different SOC proportions and DOC concentrations at various depths are not same, i.e., asynchronous changes exist.
author	Lv,H Liang,Z
author_facet	Lv,H Liang,Z
author_sort	Lv,H
title	Dynamics of soil organic carbon and dissolved organic carbon in Robina pseudoacacia forests
title_short	Dynamics of soil organic carbon and dissolved organic carbon in Robina pseudoacacia forests
title_full	Dynamics of soil organic carbon and dissolved organic carbon in Robina pseudoacacia forests
title_fullStr	Dynamics of soil organic carbon and dissolved organic carbon in Robina pseudoacacia forests
title_full_unstemmed	Dynamics of soil organic carbon and dissolved organic carbon in Robina pseudoacacia forests
title_sort	dynamics of soil organic carbon and dissolved organic carbon in robina pseudoacacia forests
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000400010
work_keys_str_mv	AT lvh dynamicsofsoilorganiccarbonanddissolvedorganiccarboninrobinapseudoacaciaforests AT liangz dynamicsofsoilorganiccarbonanddissolvedorganiccarboninrobinapseudoacaciaforests
_version_	1714206437376262144

Dynamics of soil organic carbon and dissolved organic carbon in Robina pseudoacacia forests

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