Effect of sawdust amendment on mineralization of organic nitrogen in a 2,4,5-trichlorophenol contaminated soil

Previous studies have demonstrated that the toxic effects of 2,4,5- trichlorophenol (2,4,5-TCP) are greater in agricultural soils than in forest soils; therefore these effects appear to be influenced by the total C content and soil pH. Agricultural soils (usually low in organic C) contaminated with...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Bello,D, Trasar-Cepeda,C, Leirós,M.C, Gil-Sotres,F
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2013
Materias:	2,4,5-trichlorophenol nitrogen mineralization sawdust soil contamination soil remediation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000100019
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-95162013000100019
record_format	dspace
spelling	oai:scielo:S0718-951620130001000192014-09-16Effect of sawdust amendment on mineralization of organic nitrogen in a 2,4,5-trichlorophenol contaminated soilBello,DTrasar-Cepeda,CLeirós,M.CGil-Sotres,F 2,4,5-trichlorophenol nitrogen mineralization sawdust soil contamination soil remediation Previous studies have demonstrated that the toxic effects of 2,4,5- trichlorophenol (2,4,5-TCP) are greater in agricultural soils than in forest soils; therefore these effects appear to be influenced by the total C content and soil pH. Agricultural soils (usually low in organic C) contaminated with 2,4,5-TCP may be able to be remediated by the addition of organic waste products. To test this hypothesis, an agricultural soil was artificially contaminated with 5000 mg kg-1, 500 times the Generic Reference Level (GRL) of 2,4,5-TCP, then pine sawdust was added to the contaminated soil at doses equivalent to 5% and 10% of the soil weight. The effect of the sawdust on the toxicity of the contaminant was studied by measuring the degree of mineralization of the organic nitrogen in the soil. The addition of 2,4,5-TCP produced a large increase in the amount of inorganic N present (basically ammoniacal forms), which suggests that the 2,4,5-trichlorophenol caused the death of a large part of the edaphic microbiota. The addition of sawdust buffered this effect, particularly at the highest dose (10%) as the degree of mineralization was similar to that observed in the control sample treated with the same amount of sawdust, this indicating that 10% dose of sawdust is capable of mitigating the toxic effects of 2,4,5-TCP.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.13 n.1 20132013-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000100019en10.4067/S0718-95162013005000019
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	2,4,5-trichlorophenol nitrogen mineralization sawdust soil contamination soil remediation
spellingShingle	2,4,5-trichlorophenol nitrogen mineralization sawdust soil contamination soil remediation Bello,D Trasar-Cepeda,C Leirós,M.C Gil-Sotres,F Effect of sawdust amendment on mineralization of organic nitrogen in a 2,4,5-trichlorophenol contaminated soil
description	Previous studies have demonstrated that the toxic effects of 2,4,5- trichlorophenol (2,4,5-TCP) are greater in agricultural soils than in forest soils; therefore these effects appear to be influenced by the total C content and soil pH. Agricultural soils (usually low in organic C) contaminated with 2,4,5-TCP may be able to be remediated by the addition of organic waste products. To test this hypothesis, an agricultural soil was artificially contaminated with 5000 mg kg-1, 500 times the Generic Reference Level (GRL) of 2,4,5-TCP, then pine sawdust was added to the contaminated soil at doses equivalent to 5% and 10% of the soil weight. The effect of the sawdust on the toxicity of the contaminant was studied by measuring the degree of mineralization of the organic nitrogen in the soil. The addition of 2,4,5-TCP produced a large increase in the amount of inorganic N present (basically ammoniacal forms), which suggests that the 2,4,5-trichlorophenol caused the death of a large part of the edaphic microbiota. The addition of sawdust buffered this effect, particularly at the highest dose (10%) as the degree of mineralization was similar to that observed in the control sample treated with the same amount of sawdust, this indicating that 10% dose of sawdust is capable of mitigating the toxic effects of 2,4,5-TCP.
author	Bello,D Trasar-Cepeda,C Leirós,M.C Gil-Sotres,F
author_facet	Bello,D Trasar-Cepeda,C Leirós,M.C Gil-Sotres,F
author_sort	Bello,D
title	Effect of sawdust amendment on mineralization of organic nitrogen in a 2,4,5-trichlorophenol contaminated soil
title_short	Effect of sawdust amendment on mineralization of organic nitrogen in a 2,4,5-trichlorophenol contaminated soil
title_full	Effect of sawdust amendment on mineralization of organic nitrogen in a 2,4,5-trichlorophenol contaminated soil
title_fullStr	Effect of sawdust amendment on mineralization of organic nitrogen in a 2,4,5-trichlorophenol contaminated soil
title_full_unstemmed	Effect of sawdust amendment on mineralization of organic nitrogen in a 2,4,5-trichlorophenol contaminated soil
title_sort	effect of sawdust amendment on mineralization of organic nitrogen in a 2,4,5-trichlorophenol contaminated soil
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000100019
work_keys_str_mv	AT bellod effectofsawdustamendmentonmineralizationoforganicnitrogenina245trichlorophenolcontaminatedsoil AT trasarcepedac effectofsawdustamendmentonmineralizationoforganicnitrogenina245trichlorophenolcontaminatedsoil AT leirosmc effectofsawdustamendmentonmineralizationoforganicnitrogenina245trichlorophenolcontaminatedsoil AT gilsotresf effectofsawdustamendmentonmineralizationoforganicnitrogenina245trichlorophenolcontaminatedsoil
_version_	1714206452267089920

Effect of sawdust amendment on mineralization of organic nitrogen in a 2,4,5-trichlorophenol contaminated soil

Ejemplares similares