Differentiation of the soil cover of the floodplain of the Middle-Amur Lowland in connection with the evolution of the relief forms
The article is based on a long-term study of floodplain soils of the Amur River valley within the north-eastern part of the Middle-Amur Lowland. The results of field work on the soil-geomorphological profile across the Slavyansky Island, located 200 km from Khabarovsk down the Amur River, are discus...
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| Format: | Article |
| Language: | Russian |
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V.V. Dokuchaev Soil Science Institute
2021-03-01
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| Series: | Бюллетень Почвенного института им. В.В. Докучаева |
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| Online Access: | https://bulletin.esoil.ru/jour/article/view/637 |
| _version_ | 1826570201072664576 |
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| author | V. I. Roslikova L. A. Matyushkina |
| author_facet | V. I. Roslikova L. A. Matyushkina |
| author_sort | V. I. Roslikova |
| collection | DOAJ |
| description | The article is based on a long-term study of floodplain soils of the Amur River valley within the north-eastern part of the Middle-Amur Lowland. The results of field work on the soil-geomorphological profile across the Slavyansky Island, located 200 km from Khabarovsk down the Amur River, are discussed. The study analyzes the occurrence of the island's floodplain soils on riolkas[1] and their properties, with an emphasis on morphology and lithological and particle-size composition. The features of soil formation on riolkas of different genesis – alluvial and aeolian – are shown. On sandy and sandy-loam deposits of alluvial riolkas (“meadow-forest” ridges) poorly developed sod gley soils are formed. On heavy loam and clay alluvium of the “meadow“ ridges, annually flooded by river waters, sod-meadow gley soils develop under the woodreed grass stand. Sand deposits of high aeolian riolkas are characterized by a homogeneous fine-grained structure without interlayers, signs of organic matter and with a significant amount of mica. They describe poorly developed sod-forest soils under high-trunk oak forests. The formation of texture-differentiated soils on all types of riolkas was not revealed. When the floodplain reaches the position of the first terrace above the floodplain, the differences in the lithological composition and particle-size distribution, soil texture, height above the water edge and the nature of vegetation on the inherited riolkas provide a multidirectional evolution of soil formation. At the same time, the development is taking place in accordance with the zonal types of soils (sod-forest, brown-earth, texture-differentiated – soil with a bleached horizon (podbel)). The last are mainly formed on clay-loam alluvium, which can overlay not only alluvial, but also some aeolian riolkas. [1]Riolkas are ancient, relatively high sand ridges (extended dunes) with plant cover found in Amur region (Russian Far East). |
| first_indexed | 2024-03-08T19:14:57Z |
| format | Article |
| id | doaj.art-d4a13894704d4b6c9d3ff5f812bb6f2e |
| institution | Directory Open Access Journal |
| issn | 0136-1694 2312-4202 |
| language | Russian |
| last_indexed | 2025-03-14T11:51:27Z |
| publishDate | 2021-03-01 |
| publisher | V.V. Dokuchaev Soil Science Institute |
| record_format | Article |
| series | Бюллетень Почвенного института им. В.В. Докучаева |
| spelling | doaj.art-d4a13894704d4b6c9d3ff5f812bb6f2e2025-03-02T09:48:25ZrusV.V. Dokuchaev Soil Science InstituteБюллетень Почвенного института им. В.В. Докучаева0136-16942312-42022021-03-01010610512910.19047/0136-1694-2021-106-105-129534Differentiation of the soil cover of the floodplain of the Middle-Amur Lowland in connection with the evolution of the relief formsV. I. Roslikova0L. A. Matyushkina1Institute of Water and Ecology Problems, Far Eastern Branch of the Russian Academy of SciencesInstitute of Water and Ecology Problems, Far Eastern Branch of the Russian Academy of SciencesThe article is based on a long-term study of floodplain soils of the Amur River valley within the north-eastern part of the Middle-Amur Lowland. The results of field work on the soil-geomorphological profile across the Slavyansky Island, located 200 km from Khabarovsk down the Amur River, are discussed. The study analyzes the occurrence of the island's floodplain soils on riolkas[1] and their properties, with an emphasis on morphology and lithological and particle-size composition. The features of soil formation on riolkas of different genesis – alluvial and aeolian – are shown. On sandy and sandy-loam deposits of alluvial riolkas (“meadow-forest” ridges) poorly developed sod gley soils are formed. On heavy loam and clay alluvium of the “meadow“ ridges, annually flooded by river waters, sod-meadow gley soils develop under the woodreed grass stand. Sand deposits of high aeolian riolkas are characterized by a homogeneous fine-grained structure without interlayers, signs of organic matter and with a significant amount of mica. They describe poorly developed sod-forest soils under high-trunk oak forests. The formation of texture-differentiated soils on all types of riolkas was not revealed. When the floodplain reaches the position of the first terrace above the floodplain, the differences in the lithological composition and particle-size distribution, soil texture, height above the water edge and the nature of vegetation on the inherited riolkas provide a multidirectional evolution of soil formation. At the same time, the development is taking place in accordance with the zonal types of soils (sod-forest, brown-earth, texture-differentiated – soil with a bleached horizon (podbel)). The last are mainly formed on clay-loam alluvium, which can overlay not only alluvial, but also some aeolian riolkas. [1]Riolkas are ancient, relatively high sand ridges (extended dunes) with plant cover found in Amur region (Russian Far East).https://bulletin.esoil.ru/jour/article/view/637the amur riverfloodplainalluviumsand ridgesriolkasaeolian processespreferred formationsmeadow-sod soilsbrown soilstexture-differentiated (podbels) |
| spellingShingle | V. I. Roslikova L. A. Matyushkina Differentiation of the soil cover of the floodplain of the Middle-Amur Lowland in connection with the evolution of the relief forms Бюллетень Почвенного института им. В.В. Докучаева the amur river floodplain alluvium sand ridges riolkas aeolian processes preferred formations meadow-sod soils brown soils texture-differentiated (podbels) |
| title | Differentiation of the soil cover of the floodplain of the Middle-Amur Lowland in connection with the evolution of the relief forms |
| title_full | Differentiation of the soil cover of the floodplain of the Middle-Amur Lowland in connection with the evolution of the relief forms |
| title_fullStr | Differentiation of the soil cover of the floodplain of the Middle-Amur Lowland in connection with the evolution of the relief forms |
| title_full_unstemmed | Differentiation of the soil cover of the floodplain of the Middle-Amur Lowland in connection with the evolution of the relief forms |
| title_short | Differentiation of the soil cover of the floodplain of the Middle-Amur Lowland in connection with the evolution of the relief forms |
| title_sort | differentiation of the soil cover of the floodplain of the middle amur lowland in connection with the evolution of the relief forms |
| topic | the amur river floodplain alluvium sand ridges riolkas aeolian processes preferred formations meadow-sod soils brown soils texture-differentiated (podbels) |
| url | https://bulletin.esoil.ru/jour/article/view/637 |
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