Analysis of spatio-temporal variability of soil erodibility values by water erosion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F22%3A43921417" target="_blank" >RIV/62156489:43210/22:43921417 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.11118/978-80-7509-831-3-0031" target="_blank" >https://doi.org/10.11118/978-80-7509-831-3-0031</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.11118/978-80-7509-831-3-0031" target="_blank" >10.11118/978-80-7509-831-3-0031</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of spatio-temporal variability of soil erodibility values by water erosion

Popis výsledku v původním jazyce

In current dynamic development of GIS and remote sensing methods, especially the use of accurate LiDAR data, there is a significant disproportion in the accuracy of morphological and soil data in the assessment of erosion. In current practice, the map of main soil units (MSU) is used to determine soil erodibility (expressed by K factor), which in many cases lead to a step change in values within one field or erosion closed unit (ECU). However, the soil properties included in the calculation of the K factor usually change smoothly in the direction of the slope, but also due to other morphometric characteristics. Terrain morphology should therefore be taken into account when determining the K factor values. The K factor values change dynamically both according to the terrain morphology within ECU and depending on climatic conditions that change during the year and within the geographical location in the Czech Republic (CR) and given physio-geographical conditions. In assessing the seasonal dynamics of K factor values, they appear to be key erosion rainfalls. By including this spatio-temporal variability of K factor values, it will be possible to significantly refine soil loss calculations and proposals for erosion control measures and retention elements and their intangible services for environment and increasing the landscape character and recreational potential of the site.

Název v anglickém jazyce

Analysis of spatio-temporal variability of soil erodibility values by water erosion

Popis výsledku anglicky

In current dynamic development of GIS and remote sensing methods, especially the use of accurate LiDAR data, there is a significant disproportion in the accuracy of morphological and soil data in the assessment of erosion. In current practice, the map of main soil units (MSU) is used to determine soil erodibility (expressed by K factor), which in many cases lead to a step change in values within one field or erosion closed unit (ECU). However, the soil properties included in the calculation of the K factor usually change smoothly in the direction of the slope, but also due to other morphometric characteristics. Terrain morphology should therefore be taken into account when determining the K factor values. The K factor values change dynamically both according to the terrain morphology within ECU and depending on climatic conditions that change during the year and within the geographical location in the Czech Republic (CR) and given physio-geographical conditions. In assessing the seasonal dynamics of K factor values, they appear to be key erosion rainfalls. By including this spatio-temporal variability of K factor values, it will be possible to significantly refine soil loss calculations and proposals for erosion control measures and retention elements and their intangible services for environment and increasing the landscape character and recreational potential of the site.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10508 - Physical geography

Projekt

<a href="/cs/project/QK21020069" target="_blank" >QK21020069: Korekce hodnot erodovatelnosti půdy dle morfologie terénu v rámci erozně uzavřených celků pro potřeby zpřesnění identifikace erozně ohrožených ploch</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

Public recreation and landscape protection – with environment hand in hand…: Conference proceedings

ISBN

978-80-7509-830-6

ISSN

2336-6311

e-ISSN

2336-632X

Počet stran výsledku

5

Strana od-do

31-35

Název nakladatele

Mendelova univerzita v Brně

Místo vydání

Brno

Místo konání akce

Křtiny

Datum konání akce

9. 5. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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