Nutrient and heavy metal concentrations in sunflower seedlings and sorghum regrowths from soils affected by the Aznalcollar loxic spill (Sevilla)

Nutrient and heavy metal concentrations in sunflower seedlings and sorghum regrowths from soils affected by the Aznalcollar loxic spill (Sevilla)

Ponencia presentada en e European Society for Soil Conservation International Congress 2000 Valencia).-- Man and soil at the thrird millennium : Proceedings of the International Congress, Valencia (España),28 March-1 April, (2000)

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Main Authors: Murillo Carpio, José Manuel, Marañón, Teodoro, Cabrera, Francisco, López Núñez, Rafael, Madejón, Engracia
Format: comunicación de congreso biblioteca
Language:English
Published: European Society for Soil Conservation 2000
Online Access:http://hdl.handle.net/10261/154021
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spelling dig-irnas-es-10261-1540212018-09-13T07:21:39Z Nutrient and heavy metal concentrations in sunflower seedlings and sorghum regrowths from soils affected by the Aznalcollar loxic spill (Sevilla) Murillo Carpio, José Manuel Marañón, Teodoro Cabrera, Francisco López Núñez, Rafael Madejón, Engracia Ponencia presentada en e European Society for Soil Conservation International Congress 2000 Valencia).-- Man and soil at the thrird millennium : Proceedings of the International Congress, Valencia (España),28 March-1 April, (2000) The breaching of the pyrite-mining, tailing dam of Aznalcollar mine (25 April 1998) caused a spill of water and sludge (ca. 5 million m3)¡ which affected a total of 4286 ha (2557 ha. of Croplands). A remediation procedure of the affected soils, consisting in the removal of the superficial ltop layer of deposited sludge, started immediately. Despite these cleaning works, soil (plough layer) in many points remained contaminated, with a heavy metal concentration even greater than that before the cleaning works. We have analyzed the nutritional status and heavy metal concentrations of sunflower seedlings ('Mastin, HS') and sorghum (bicolor, 'Grazer' X sudanese) regrowths collected after the cleaning works al the 'Soberbina' farm (37º 27' N, 6º 12' O, left bank of the Guadiamar river, ca. 4,5 km from the mine). Although both crops fields (as all crops other affected area) were abandoned, sunflower seeds attained to germinate, and sorghum resprouted, after the cleaning works. Concentration of heavy metals were greater in sunflower seedlings (3/4 pairs of leaves) collected in the affected, 'cleaned' soil than those collected in an adjacent, non-affected soil. However, plant growth (9/10 pairs of leaves) can seed a 'dilution' of the heavy metal concentrations, especially noticeable for Cd. For the 2-months old sorghum regrowths a significant increase was detected only in Pb concentration. None of the heavy metals studied in both crops reached either phytoloxic or toxic levels for human and livestock (eg. A maximum of 10 mg Pb kg" in sunflower seedlings, below the toxic level of 30 mg kg"). This circumstance contrasts with the levels reached by some wild plant species in the affected zone (eg., 46 and 74 mg Pb kg" in mandrake leaves and bermuda grass shools, respectively). Peer reviewed 2017-08-10T07:46:48Z 2017-08-10T07:46:48Z 2000 comunicación de congreso http://purl.org/coar/resource_type/c_5794 Man and soil at the thrird millennium : Book of abstracts (2000) http://hdl.handle.net/10261/154021 en Sí none European Society for Soil Conservation
institution IRNAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-irnas-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IRNAS España
language English
description Ponencia presentada en e European Society for Soil Conservation International Congress 2000 Valencia).-- Man and soil at the thrird millennium : Proceedings of the International Congress, Valencia (España),28 March-1 April, (2000)
format comunicación de congreso
author Murillo Carpio, José Manuel
Marañón, Teodoro
Cabrera, Francisco
López Núñez, Rafael
Madejón, Engracia
spellingShingle Murillo Carpio, José Manuel
Marañón, Teodoro
Cabrera, Francisco
López Núñez, Rafael
Madejón, Engracia
Nutrient and heavy metal concentrations in sunflower seedlings and sorghum regrowths from soils affected by the Aznalcollar loxic spill (Sevilla)
author_facet Murillo Carpio, José Manuel
Marañón, Teodoro
Cabrera, Francisco
López Núñez, Rafael
Madejón, Engracia
author_sort Murillo Carpio, José Manuel
title Nutrient and heavy metal concentrations in sunflower seedlings and sorghum regrowths from soils affected by the Aznalcollar loxic spill (Sevilla)
title_short Nutrient and heavy metal concentrations in sunflower seedlings and sorghum regrowths from soils affected by the Aznalcollar loxic spill (Sevilla)
title_full Nutrient and heavy metal concentrations in sunflower seedlings and sorghum regrowths from soils affected by the Aznalcollar loxic spill (Sevilla)
title_fullStr Nutrient and heavy metal concentrations in sunflower seedlings and sorghum regrowths from soils affected by the Aznalcollar loxic spill (Sevilla)
title_full_unstemmed Nutrient and heavy metal concentrations in sunflower seedlings and sorghum regrowths from soils affected by the Aznalcollar loxic spill (Sevilla)
title_sort nutrient and heavy metal concentrations in sunflower seedlings and sorghum regrowths from soils affected by the aznalcollar loxic spill (sevilla)
publisher European Society for Soil Conservation
publishDate 2000
url http://hdl.handle.net/10261/154021
work_keys_str_mv AT murillocarpiojosemanuel nutrientandheavymetalconcentrationsinsunflowerseedlingsandsorghumregrowthsfromsoilsaffectedbytheaznalcollarloxicspillsevilla
AT maranonteodoro nutrientandheavymetalconcentrationsinsunflowerseedlingsandsorghumregrowthsfromsoilsaffectedbytheaznalcollarloxicspillsevilla
AT cabrerafrancisco nutrientandheavymetalconcentrationsinsunflowerseedlingsandsorghumregrowthsfromsoilsaffectedbytheaznalcollarloxicspillsevilla
AT lopeznunezrafael nutrientandheavymetalconcentrationsinsunflowerseedlingsandsorghumregrowthsfromsoilsaffectedbytheaznalcollarloxicspillsevilla
AT madejonengracia nutrientandheavymetalconcentrationsinsunflowerseedlingsandsorghumregrowthsfromsoilsaffectedbytheaznalcollarloxicspillsevilla
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