Relating extent of colluvial soils to topographic derivatives and soil variables in a Luvisol sub-catchment, Central Bohemia, Czech Republic
Colluvial soils, resulting from accelerated soil erosion, represent a significant part of the soil cover pattern in agricultural landscapes. Their specific terrain position makes it possible to map them using geostatistics and digital terrain modelling. A study of the relationship between colluvial...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2014-06-01
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| Series: | Soil and Water Research |
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| Online Access: | https://swr.agriculturejournals.cz/artkey/swr-201402-0001_relating-extent-of-colluvial-soils-to-topographic-derivatives-and-soil-variables-in-a-luvisol-sub-catchment-ce.php |
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| author | Tereza Zádorová Daniel Žížala Vít Penížek Šárka Čejková |
| author_facet | Tereza Zádorová Daniel Žížala Vít Penížek Šárka Čejková |
| author_sort | Tereza Zádorová |
| collection | DOAJ |
| description | Colluvial soils, resulting from accelerated soil erosion, represent a significant part of the soil cover pattern in agricultural landscapes. Their specific terrain position makes it possible to map them using geostatistics and digital terrain modelling. A study of the relationship between colluvial soil extent and terrain and soil variables was performed at a morphologically diverse study site in a Luvisol soil region in Central Bohemia. Assessment of the specificity of the colluviation process with regard to profile characteristics of Luvisols was another goal of the study. A detailed field survey, statistical analyses, and detailed digital elevation model processing were the main methods utilized in the study. Statistical analysis showed a strong relationship between the occurrence of colluvial soil, various topographic derivatives, and soil organic carbon content. A multiple range test proved that four topographic derivatives significantly distinguish colluvial soil from other soil units and can be then used for colluvial soil delineation. Topographic wetness index was evaluated as the most appropriate terrain predictor. Soil organic carbon content was significantly correlated with five topographic derivatives, most strongly with topographic wetness index (TWI) and plan curvature. Redistribution of the soil material at the study site is intensive but not as significant as in loess regions covered by Chernozem. Soil mass transport is limited mainly to the A horizon; an argic horizon is truncated only at the steepest parts of the slope. |
| first_indexed | 2024-04-10T08:04:30Z |
| format | Article |
| id | doaj.art-d02b2913f73348268dffcebe809eea1e |
| institution | Directory Open Access Journal |
| issn | 1801-5395 1805-9384 |
| language | English |
| last_indexed | 2024-04-10T08:04:30Z |
| publishDate | 2014-06-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Soil and Water Research |
| spelling | doaj.art-d02b2913f73348268dffcebe809eea1e2023-02-23T03:48:25ZengCzech Academy of Agricultural SciencesSoil and Water Research1801-53951805-93842014-06-0192475710.17221/57/2013-SWRswr-201402-0001Relating extent of colluvial soils to topographic derivatives and soil variables in a Luvisol sub-catchment, Central Bohemia, Czech RepublicTereza Zádorová0Daniel Žížala1Vít Penížek2Šárka Čejková3Department of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicColluvial soils, resulting from accelerated soil erosion, represent a significant part of the soil cover pattern in agricultural landscapes. Their specific terrain position makes it possible to map them using geostatistics and digital terrain modelling. A study of the relationship between colluvial soil extent and terrain and soil variables was performed at a morphologically diverse study site in a Luvisol soil region in Central Bohemia. Assessment of the specificity of the colluviation process with regard to profile characteristics of Luvisols was another goal of the study. A detailed field survey, statistical analyses, and detailed digital elevation model processing were the main methods utilized in the study. Statistical analysis showed a strong relationship between the occurrence of colluvial soil, various topographic derivatives, and soil organic carbon content. A multiple range test proved that four topographic derivatives significantly distinguish colluvial soil from other soil units and can be then used for colluvial soil delineation. Topographic wetness index was evaluated as the most appropriate terrain predictor. Soil organic carbon content was significantly correlated with five topographic derivatives, most strongly with topographic wetness index (TWI) and plan curvature. Redistribution of the soil material at the study site is intensive but not as significant as in loess regions covered by Chernozem. Soil mass transport is limited mainly to the A horizon; an argic horizon is truncated only at the steepest parts of the slope.https://swr.agriculturejournals.cz/artkey/swr-201402-0001_relating-extent-of-colluvial-soils-to-topographic-derivatives-and-soil-variables-in-a-luvisol-sub-catchment-ce.phpdigital elevation modeldigital soil mapping loesssoil erosionsoil organic carbon |
| spellingShingle | Tereza Zádorová Daniel Žížala Vít Penížek Šárka Čejková Relating extent of colluvial soils to topographic derivatives and soil variables in a Luvisol sub-catchment, Central Bohemia, Czech Republic Soil and Water Research digital elevation model digital soil mapping loess soil erosion soil organic carbon |
| title | Relating extent of colluvial soils to topographic derivatives and soil variables in a Luvisol sub-catchment, Central Bohemia, Czech Republic |
| title_full | Relating extent of colluvial soils to topographic derivatives and soil variables in a Luvisol sub-catchment, Central Bohemia, Czech Republic |
| title_fullStr | Relating extent of colluvial soils to topographic derivatives and soil variables in a Luvisol sub-catchment, Central Bohemia, Czech Republic |
| title_full_unstemmed | Relating extent of colluvial soils to topographic derivatives and soil variables in a Luvisol sub-catchment, Central Bohemia, Czech Republic |
| title_short | Relating extent of colluvial soils to topographic derivatives and soil variables in a Luvisol sub-catchment, Central Bohemia, Czech Republic |
| title_sort | relating extent of colluvial soils to topographic derivatives and soil variables in a luvisol sub catchment central bohemia czech republic |
| topic | digital elevation model digital soil mapping loess soil erosion soil organic carbon |
| url | https://swr.agriculturejournals.cz/artkey/swr-201402-0001_relating-extent-of-colluvial-soils-to-topographic-derivatives-and-soil-variables-in-a-luvisol-sub-catchment-ce.php |
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