The fate of cadmium in field soils of the Danubian Lowland
Result description
The susceptibility of soils to deep penetration of cadmium was assessed by measuring cadmium adsorp-tion on soil particles <0.01 mm, easily mobile in soil macropores, and bypassing ratio. The latter is de-fined as a ratio of the rate of macropore flow tothe rate of total (macropore and matrix) flow. Measure-ments were made on soils from the Danubian lowland. In this study, the susceptibility of soils to deep penetration of cadmium was assessed on light, loamy-sand soil in Kalinkovo, medium heavy, loamysoil in Macov, and heavy, clay soil in Jurova. It was found that when the interaction between soil and cad-mium lasted 1 min, more than 35, 32, and 48% of cadmium was adsorbed on the particles <0.01 mm in soils from Kalinkovo, Macov, and Jurova, respectively. In the case of ponding infiltration, more than 50% of water can flow via topsoil macropores in Kalinkovo, about 70% in Macov, and 96% in Jurova. This value of bypassing ratio can be met during an irrigation/rain with higher intensi
Keywords
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The fate of cadmium in field soils of the Danubian Lowland
Original language description
The susceptibility of soils to deep penetration of cadmium was assessed by measuring cadmium adsorp-tion on soil particles <0.01 mm, easily mobile in soil macropores, and bypassing ratio. The latter is de-fined as a ratio of the rate of macropore flow tothe rate of total (macropore and matrix) flow. Measure-ments were made on soils from the Danubian lowland. In this study, the susceptibility of soils to deep penetration of cadmium was assessed on light, loamy-sand soil in Kalinkovo, medium heavy, loamysoil in Macov, and heavy, clay soil in Jurova. It was found that when the interaction between soil and cad-mium lasted 1 min, more than 35, 32, and 48% of cadmium was adsorbed on the particles <0.01 mm in soils from Kalinkovo, Macov, and Jurova, respectively. In the case of ponding infiltration, more than 50% of water can flow via topsoil macropores in Kalinkovo, about 70% in Macov, and 96% in Jurova. This value of bypassing ratio can be met during an irrigation/rain with higher intensi
Czech name
Osud kadmia v půdách Podunajské nížiny
Czech description
V Podunajské nížině byla hodnocena náchylnost půd k hlubokému průniku kadmia. Byly zkoumány lehké hlinitopísčité půdy (Kalinkovo), středně těžké hlinité půdy (Macov) a těžké jílovité půdy (Jurova). Průnik kadmia do půdy se hodnotil na základě adsorpce radioaktivního izotopu kadmia na jemné půdní částice <0.01 mm a pomocí obtokového koeficientu (podíl vody, která vteče při infiltraci z výtopy do makropórů, vůči objemu veškeré zasáklé vody). Bylo zjištěno, že při minutovém trvání kontaktu kadmia s půdou se na tyto půdní částice váže více než 35 % (Kalinkovo), 32 % (Macov) a 48% (Jurova). Při infiltraci z výtopy vteče do půdních makropórů asi 50 % (Kalinkovo), 70 % (Macovo) a 96 % (Jurova). Protože jemné půdní částice se snadno dostanou při dešti do vodnísuspenze, která zasakuje do půdních makropórů, znamená to, že půdy Podunajské nížiny jsou vysoce náchylné k průniku kadmia z povrchu (obsaženo ve fosfáto-vých hnojivech) do hlubokých horizontů, případě až k hladině podzemní vody. K tomu
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GD - Fertilization, irrigation, soil treatment
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Soil & Tillage Research
ISSN
0167-1987
e-ISSN
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Volume of the periodical
85
Issue of the periodical within the volume
1-2
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
12
Pages from-to
154-165
UT code for WoS article
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EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
GD - Fertilization, irrigation, soil treatment
Year of implementation
2006