Effects of heavy metal concentrations on biological activity of soil micro-organisms

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F03%3A00005659" target="_blank" >RIV/60460709:41210/03:00005659 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of heavy metal concentrations on biological activity of soil micro-organisms

Popis výsledku v původním jazyce

The distribution of cadmium, lead and zinc in exchangeable, organic, and 2M HNO3-extractable fractions as well as the effect of heavy metal concentration on soil microflora was investigated. Six sampling transects were chosen in the Litavka River alluvium in the years 1999-2001. Concentration of all metals increased with decreasing distance from the source of contamination. The concentrations of Cd and Zn in exchangeable fraction were higher in organically bound fraction, reverse trend was found in Pb speciation. All measured parameters of soil microbial activity were affected by heavy metals concentration. The decrease of CFU was most significant in case of oligotrophic bacteria and spore-forming bacteria. Significant inhibition of C-biomass occurredin soils highly contaminated by heavy metals. Cbiomass:Cox ratio decreased with increasing soil pollution. Generally, the values of enzymatic activities were highest in soil above the source of contamination and they were decreasing appro

Název v anglickém jazyce

Effects of heavy metal concentrations on biological activity of soil micro-organisms

Popis výsledku anglicky

The distribution of cadmium, lead and zinc in exchangeable, organic, and 2M HNO3-extractable fractions as well as the effect of heavy metal concentration on soil microflora was investigated. Six sampling transects were chosen in the Litavka River alluvium in the years 1999-2001. Concentration of all metals increased with decreasing distance from the source of contamination. The concentrations of Cd and Zn in exchangeable fraction were higher in organically bound fraction, reverse trend was found in Pb speciation. All measured parameters of soil microbial activity were affected by heavy metals concentration. The decrease of CFU was most significant in case of oligotrophic bacteria and spore-forming bacteria. Significant inhibition of C-biomass occurredin soils highly contaminated by heavy metals. Cbiomass:Cox ratio decreased with increasing soil pollution. Generally, the values of enzymatic activities were highest in soil above the source of contamination and they were decreasing appro

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DF - Pedologie

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Plant, Soil and Environment

ISSN

1214-1178

e-ISSN

—

Svazek periodika

49

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

321-326

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—