Pedogenesis and root development in a complex geomorphologic setting of the Faroe Islands

Anita Veihe, Mie Thers

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Studies of pedogenesis in basaltic soils within the cool, temperate zone were fairly limited. This study looked at pedogenesis and root development in Norðradalur of the Faroe Islands. To a large extent, soil physical and chemical characteristics were determined by sedimentological rather than pedological processes. Wind erosion plays an important role, and in spite of the homogeneity of the parent material, soil pedogenesis is highly varied. Soils were high in cation exchange capacity (CEC) and generally have a low base saturation, and the major soil-forming processes were strong weathering, intensive leaching, gleying, and humification. Decomposition of the organic material was good overall. Nitrogen content was low to medium in the mineralogic horizons but high in the peaty horizons. Total phosphorus was within the range typical of soils with a high organic fraction, and previous theories explaining the low carrying capacity regarding grazing as a result of a low nutrient content do not seem to apply. Root densities were as expected for grazing areas, but there was a huge variation in the root diameters as a consequence of microclimatic differences and associated differences in vegetation.
OriginalsprogEngelsk
TidsskriftCommunications in Soil Science and Plant Analysis
Vol/bind38
Udgave nummer3-4
Sider (fra-til)293-314
Antal sider20
ISSN0010-3624
StatusUdgivet - 2007

Citer dette

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title = "Pedogenesis and root development in a complex geomorphologic setting of the Faroe Islands",
abstract = "Studies of pedogenesis in basaltic soils within the cool, temperate zone were fairly limited. This study looked at pedogenesis and root development in Nor{\dh}radalur of the Faroe Islands. To a large extent, soil physical and chemical characteristics were determined by sedimentological rather than pedological processes. Wind erosion plays an important role, and in spite of the homogeneity of the parent material, soil pedogenesis is highly varied. Soils were high in cation exchange capacity (CEC) and generally have a low base saturation, and the major soil-forming processes were strong weathering, intensive leaching, gleying, and humification. Decomposition of the organic material was good overall. Nitrogen content was low to medium in the mineralogic horizons but high in the peaty horizons. Total phosphorus was within the range typical of soils with a high organic fraction, and previous theories explaining the low carrying capacity regarding grazing as a result of a low nutrient content do not seem to apply. Root densities were as expected for grazing areas, but there was a huge variation in the root diameters as a consequence of microclimatic differences and associated differences in vegetation.",
keywords = "Basaltic soils, root development, soil fertility, Faroe Islands, pedogenesis",
author = "Anita Veihe and Mie Thers",
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journal = "Communications in Soil Science and Plant Analysis",
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Pedogenesis and root development in a complex geomorphologic setting of the Faroe Islands. / Veihe, Anita; Thers, Mie.

I: Communications in Soil Science and Plant Analysis, Bind 38, Nr. 3-4, 2007, s. 293-314.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Pedogenesis and root development in a complex geomorphologic setting of the Faroe Islands

AU - Veihe, Anita

AU - Thers, Mie

PY - 2007

Y1 - 2007

N2 - Studies of pedogenesis in basaltic soils within the cool, temperate zone were fairly limited. This study looked at pedogenesis and root development in Norðradalur of the Faroe Islands. To a large extent, soil physical and chemical characteristics were determined by sedimentological rather than pedological processes. Wind erosion plays an important role, and in spite of the homogeneity of the parent material, soil pedogenesis is highly varied. Soils were high in cation exchange capacity (CEC) and generally have a low base saturation, and the major soil-forming processes were strong weathering, intensive leaching, gleying, and humification. Decomposition of the organic material was good overall. Nitrogen content was low to medium in the mineralogic horizons but high in the peaty horizons. Total phosphorus was within the range typical of soils with a high organic fraction, and previous theories explaining the low carrying capacity regarding grazing as a result of a low nutrient content do not seem to apply. Root densities were as expected for grazing areas, but there was a huge variation in the root diameters as a consequence of microclimatic differences and associated differences in vegetation.

AB - Studies of pedogenesis in basaltic soils within the cool, temperate zone were fairly limited. This study looked at pedogenesis and root development in Norðradalur of the Faroe Islands. To a large extent, soil physical and chemical characteristics were determined by sedimentological rather than pedological processes. Wind erosion plays an important role, and in spite of the homogeneity of the parent material, soil pedogenesis is highly varied. Soils were high in cation exchange capacity (CEC) and generally have a low base saturation, and the major soil-forming processes were strong weathering, intensive leaching, gleying, and humification. Decomposition of the organic material was good overall. Nitrogen content was low to medium in the mineralogic horizons but high in the peaty horizons. Total phosphorus was within the range typical of soils with a high organic fraction, and previous theories explaining the low carrying capacity regarding grazing as a result of a low nutrient content do not seem to apply. Root densities were as expected for grazing areas, but there was a huge variation in the root diameters as a consequence of microclimatic differences and associated differences in vegetation.

KW - Basaltic soils

KW - root development

KW - soil fertility

KW - Faroe Islands

KW - pedogenesis

M3 - Journal article

VL - 38

SP - 293

EP - 314

JO - Communications in Soil Science and Plant Analysis

JF - Communications in Soil Science and Plant Analysis

SN - 0010-3624

IS - 3-4

ER -