Specificity of pedogenesis in shallow soils on massive rocks of East Fennoscandia
The shallow soils of East Fennoscandia on massive rocks under lichen and lichen-moss vegetation were studied. The rocks were represented by (i) nepheline syenites, (ii) amphibolites, (iii) metamorphized gabbro-diabase and (iv) their derivates. Besides “soils” as litters on rocks and Podzols on sandy...
| Main Authors: | , , |
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| Format: | Article in Journal/Newspaper |
| Language: | Lithuanian English |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://lammc.lvb.lt/LAMMC:ELABAPDB5801051&prefLang=en_US |
| Summary: | The shallow soils of East Fennoscandia on massive rocks under lichen and lichen-moss vegetation were studied. The rocks were represented by (i) nepheline syenites, (ii) amphibolites, (iii) metamorphized gabbro-diabase and (iv) their derivates. Besides “soils” as litters on rocks and Podzols on sandy moraines, there was found a unique variant of soil formation as shallow (<5–10 cm) stony soils that were formed on the fine earth derived from hard rocks without any admixture. These soils are classified as Leptosol (WRB, 2006) and as “lepto-podburs” in the Russian classification system (2004). Their recent pedogenic processes are: (i) transformation of soil organic matter in situ, (ii) formation and migration of R2O3-organic complexes, (iii) mineral disintegration. They are combined in one soil horizon as depth and fine earth are not enough to form a proper soil profile. Phyllosilicates are present in the sola due to epigenetic (“prepedogenic”) alteration of rock. |
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