Changes of Soil Aggregate Stability as a Result of the Effect of Freeze-thaw Cycles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F15%3APU117349" target="_blank" >RIV/00216305:26110/15:PU117349 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.11118/actaun201563041211" target="_blank" >http://dx.doi.org/10.11118/actaun201563041211</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.11118/actaun201563041211" target="_blank" >10.11118/actaun201563041211</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Changes of Soil Aggregate Stability as a Result of the Effect of Freeze-thaw Cycles

Popis výsledku v původním jazyce

The objective of the present research was to assess the changes in soil erodibility during the non-vegetation period as one of the factors affecting the snowmelt erosion. The temperature fluctuation was simulated with the use of a climatic chamber ex situ. The soil surface was for simplicity reasons considered without any plant or snow cover. The paper deals with the rate of soil erodibility determination – the soil erodibility should increase due to the decrease of soil aggregate stability depending on the number of freeze-thaw cycles and initial soil moisture. Soil samples (taken from three sites) were subjected to freeze-thaw cycles under laboratory conditions. Changes in soil agreggate stability were monitored as one of the main soil characteristics which determine the soil erodibility. Two methods were used to determine the soil macroaggregate stability (soil aggregate fraction 1-2 mm): standard single-sieve method of wet sieving (Kemper et Rosenau, 1986), and dry aggregate analysis using a set of flat sieves with a diameter of 1 mm and 0.5 mm. The results of each method are controversial. Intended hypothesis has not been clearly confirmed.

Název v anglickém jazyce

Changes of Soil Aggregate Stability as a Result of the Effect of Freeze-thaw Cycles

Popis výsledku anglicky

The objective of the present research was to assess the changes in soil erodibility during the non-vegetation period as one of the factors affecting the snowmelt erosion. The temperature fluctuation was simulated with the use of a climatic chamber ex situ. The soil surface was for simplicity reasons considered without any plant or snow cover. The paper deals with the rate of soil erodibility determination – the soil erodibility should increase due to the decrease of soil aggregate stability depending on the number of freeze-thaw cycles and initial soil moisture. Soil samples (taken from three sites) were subjected to freeze-thaw cycles under laboratory conditions. Changes in soil agreggate stability were monitored as one of the main soil characteristics which determine the soil erodibility. Two methods were used to determine the soil macroaggregate stability (soil aggregate fraction 1-2 mm): standard single-sieve method of wet sieving (Kemper et Rosenau, 1986), and dry aggregate analysis using a set of flat sieves with a diameter of 1 mm and 0.5 mm. The results of each method are controversial. Intended hypothesis has not been clearly confirmed.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

<a href="/cs/project/QJ1320157" target="_blank" >QJ1320157: Erozní procesy a jejich vliv na produkční schopnost půd a navrhování protierozních opatření v procesu pozemkových úprav</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis

ISSN

1211-8516

e-ISSN

2464-8310

Svazek periodika

63

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

1211-1218

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-84943253290