Changes in selected physico-chemical properties of floodplain soils in three different land-use types after flooding

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027073%3A_____%2F21%3AN0000026" target="_blank" >RIV/00027073:_____/21:N0000026 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.agriculturejournals.cz/publicFiles/435_2020-PSE.pdf" target="_blank" >https://www.agriculturejournals.cz/publicFiles/435_2020-PSE.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/435/2020-PSE" target="_blank" >10.17221/435/2020-PSE</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Changes in selected physico-chemical properties of floodplain soils in three different land-use types after flooding

Popis výsledku v původním jazyce

This article provides information on selected physico-chemical properties, including soil colour, texture, electrical conductivity, pHH(2)O, pHCaCl(2,) content of total carbon and Q(4/6) quotient, of the topsoil and subsoil of former flood sediments at three diverse vegetation plots in a floodplain and in two reference plots unaffected by floods, and changes of some soil properties caused by a new subsequent flood. Aggradation of flood sediments in the area was controlled both by local terrain morphology and vegetation type cover. Differences in the properties of sediments in the individual plot types were caused by the different production of litter, root biomass and carbon cycling before the new flood. Vertical distributions and inventories of 137Cs in soils revealed the position and proportion of modern sediments in soil profiles, man-made filling of former erosion grooves and ploughing depths. The new flood of a lower hydrological power aggraded a thin layer of organo-clay sediment on the soil surface but showed minor effects on the investigated soil properties. The lowest dry bulk density and highest total porosity values were found in the topsoil of woody and grassy plots after the flood implying no substantial break down of soil aggregates by the flood. The highest dry bulk density values in the subsoil of fields indicated soil compaction from agricultural machinery. No increased soil salinity was found after the flood. The flood did not significantly affect the pHH(2)O of the topsoil and subsoil; however, a significant increase in pHCaCl(2) was found for the topsoil of grassy plots and for all topsoil samples from the park. No significant increases in total carbon (C-tot) contents were found in topsoils of any plot types after the flood in spite of an accumulation of thin organo-clay material on the soil surface after the flood. However, significant increases in C-tot in subsoils of all plot types indicate the vertical migration of colloidal and dissolved organic carbon in soils during the flood. C-tot contents positively correlated with electrical conductivity values and negative correlated with pH values. The relatively minor changes in soil physico-chemical properties found after the flood can be explained by the short duration and small dynamic power of the flood, and the timing of sampling when the flood had receded and soil aeration was already being restored.

Název v anglickém jazyce

Changes in selected physico-chemical properties of floodplain soils in three different land-use types after flooding

Popis výsledku anglicky

This article provides information on selected physico-chemical properties, including soil colour, texture, electrical conductivity, pHH(2)O, pHCaCl(2,) content of total carbon and Q(4/6) quotient, of the topsoil and subsoil of former flood sediments at three diverse vegetation plots in a floodplain and in two reference plots unaffected by floods, and changes of some soil properties caused by a new subsequent flood. Aggradation of flood sediments in the area was controlled both by local terrain morphology and vegetation type cover. Differences in the properties of sediments in the individual plot types were caused by the different production of litter, root biomass and carbon cycling before the new flood. Vertical distributions and inventories of 137Cs in soils revealed the position and proportion of modern sediments in soil profiles, man-made filling of former erosion grooves and ploughing depths. The new flood of a lower hydrological power aggraded a thin layer of organo-clay sediment on the soil surface but showed minor effects on the investigated soil properties. The lowest dry bulk density and highest total porosity values were found in the topsoil of woody and grassy plots after the flood implying no substantial break down of soil aggregates by the flood. The highest dry bulk density values in the subsoil of fields indicated soil compaction from agricultural machinery. No increased soil salinity was found after the flood. The flood did not significantly affect the pHH(2)O of the topsoil and subsoil; however, a significant increase in pHCaCl(2) was found for the topsoil of grassy plots and for all topsoil samples from the park. No significant increases in total carbon (C-tot) contents were found in topsoils of any plot types after the flood in spite of an accumulation of thin organo-clay material on the soil surface after the flood. However, significant increases in C-tot in subsoils of all plot types indicate the vertical migration of colloidal and dissolved organic carbon in soils during the flood. C-tot contents positively correlated with electrical conductivity values and negative correlated with pH values. The relatively minor changes in soil physico-chemical properties found after the flood can be explained by the short duration and small dynamic power of the flood, and the timing of sampling when the flood had receded and soil aeration was already being restored.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40104 - Soil science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

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

1805-9368

Svazek periodika

67

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

99-109

Kód UT WoS článku

000616696400006

EID výsledku v databázi Scopus

2-s2.0-85101195474