Acta Univ. Agric. Silvic. Mendelianae Brun. 2019, 67, 733-747

https://doi.org/10.11118/actaun201967030733
Published online 2019-06-27

Catenas of Grain Size and Chemical Forest Soil Properties in Outer Western Carpathians of the Czech Republic Characterized by Principal Component Analysis

Pavel Samec1,2, Tomáš Mikita3, Aleš Bajer3

1Forest Management Institute Brandýs nad Labem, Nábřežní 1329, CZ‑250 01 Brandýs nad Labem, Czech Republic
2Global Change Research Institute CAS, Bělidla 986/4a, CZ‑603 00 Brno, Czech Republic
3Faculty of Forestry and Wood Technology, Mendel University, Zemědělská 3, CZ‑613 00 Brno, Czech Republic

Received February 11, 2019
Accepted March 22, 2019

More frequent occurence of hillwashes in altitudinal‑differentiated landscapes causes changes of relationships among terrain, bedrock and soils. The aim of the study was to characterize catenas of the terrain‑bedrock‑soil relationships by PCA of forest soil properties generalized into 2 × 2 km grid in Outer Western Carpathians (OWC) of the Czech Republic. The spatial relationships of the soil catenas with terrain and rocks were verified by ANOVA. Typification of the catenas was carried out by frequencies in the presented terrain and bedrock types according to biogeographical division system. Base saturation, CaO and P2O5 divide forest soils in OWC to ten catenas. The catenas characterized by moderate correspondence of soils and bedrock are concentrated in Outer Depressions, while catenas with moderate correspondence of soils and terrain are concentrated in Flysch Range. The Outer Carpathian Depressions are covered predominantly by floodplains, flat waterlogged, loess‑covered and luvic hillycountries (67% of the grid). The Flysch Range is covered predominantly by proluvial slopes, broken hillcountries and submountain to mountain slopes (65% of the grid). The Floodplains, broken nutrient‑medium hillycountries and mountain slopes have medium to marked soil horizon properties heterogeneity. The flat landforms, proluvial and submountain slopes have moderate soil properties heterogeneity. The statistical significant differences between values of properties at A and B horizons suggest rate of an surface matter translocation effect on the soil catena heterogeneity.

Funding

The study was supported by the project 304021D067 of the European Commission.

References

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