Landform transformation and long-term sediment budget for a Chernozem- dominated lowland agricultural catchment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73584065" target="_blank" >RIV/61989592:15310/17:73584065 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0341816217301637" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0341816217301637</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.catena.2017.05.007" target="_blank" >10.1016/j.catena.2017.05.007</a>

Result language

angličtina

Original language name

Landform transformation and long-term sediment budget for a Chernozem- dominated lowland agricultural catchment

Original language description

The loess hilly lands of the South-West Foreland of the West Carpathians are characterized by favorable climatic conditions, smooth topography, fertile soils and a long settlement history. For the first time, we document changes to human-induced landforms in a small zero-order dry valley (0.28 km 2) with Calcic Chernozem soils and develop a long-term sediment budget. The original surface was reconstructed based on interpreting records of erosion and deposition from 185 soil cores and six valley cross-sections. The topography inherited from the Pleistocene was transformed through lowering of hillslope ridges and convexities, along with in filling of shallow depressions within the original valley bottom. On convex-convex landforms had an average net erosion of −0.32 ± 0.01 m, while average net accumulation in the valley bottom was estimated at 0.20 ± 0.01 m. The correlation between change in soil pro file depth with profile curvature (−0.51, p &lt; 0.01)was stronger than with slope (−0.42, p &lt; 0.01). The sediment budget was calculated using the Average Per Unit (APU) approach. When slope classes were used in calculating net soil loss from catchments was 143·103Mg·km−2, whereas 154·103Mg·km−2was estimated when morphometric forms of hillslopes were used instead. Both values are &lt; 60% of estimates for similar loess catchments in Central and Western Europe. Prior to 1949, the landscape structure was characterized by small and narrow fields and vegetative field barriers that limited water and aeolian sediment fluxes in the direction of the thalweg and main wind directions. The landscape structure favoured the low-intensity tillage, erosion and accumulation within fields, and short-distance sheet and rill erosion on hillslopes. The land-use changes in the 1950′s caused removal of barriers for water and aeolian sediment transport, and changed the direction of sediment fluxes of tillage erosion.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10508 - Physical geography

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Catena

ISSN

0341-8162

e-ISSN

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Volume of the periodical

157

Issue of the periodical within the volume

13.5.2017

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

11

Pages from-to

24-34

UT code for WoS article

000406732200003

EID of the result in the Scopus database

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