skip to primary navigation skip to content
 

 

You are not currently logged in

SPRI library catalogue

View a record

Please note: You are viewing the legacy database of the Scott Polar Research Institute Library catalogue. It is no longer being updated, so does not reliably reflect our current library holdings.

Please search for material in iDiscover for up-to-date information about the library collection.


Record #191060:

Fine scale variability in soil frost dynamics surrounding cushions of the dominant vascular plant species (Azorella selago) on sub-Antarctic Marion Island / Natalie S. Haussmann, Jan C. Boelhouwers, Melodie A. McGeoch.

Title: Fine scale variability in soil frost dynamics surrounding cushions of the dominant vascular plant species (Azorella selago) on sub-Antarctic Marion Island / Natalie S. Haussmann, Jan C. Boelhouwers, Melodie A. McGeoch.
Author(s): Haussmann, Natalie S.
Boelhouwers, Jan C.
McGeoch, Melodie A.
Date: 2009.
In: Geografiska Annaler. Series A. Physical Geography. (2009.), Vol. 91A(4) (2009)
Abstract: Examines fine-scale variability in soil temperature and moisture parameters, specifically focusing on frost cycle characteristics around cushions of Azorella selago. Frost season was characterised by numerous low intensity and very shallow frost cycles. Soils on eastern cushion sides had lower mean and maximum temperatures in winter than those on western cushion sides, and also lower variability in winter temperature, probably as result of higher wind speeds on western cushion sides and/or eastern, lee-side snow accumulation. Despite mild frost climate there was extensive frost heave in study area, indicating formation of needle ice above -2°C. Results demonstrate effectiveness of frost pull as heave mechanism under shallow frost conditions, and highlight important role of Azorella cushions in modifying site microclimates and potentially providing microhabitats. The latter are particularly important in light of current climate change trends on island, as continued warming and drying will increase need for thermal and moisture refugia.
Notes:

Geografiska Annaler. Series A. Physical Geography. Vol. 91A(4) :257-268 (2009).

Keywords: 551.58 -- Climatology.
551.584.3 -- Microclimates, terrain and soil.
631.4 -- Soil science.
631.43 -- Soils, physical and mechanical properties.
551.524.37 -- Frosts.
551.343.7 -- Frost, soil moisture and surface water, effect on movement of.
58 -- Botany.
582.893 -- Umbelliferae: Azorella selago.
581.5 -- Plant behaviour.
551.345 -- Permafrost. Cryopedology.
91(08) -- Expeditions: 1959- South African National Antarctic Expeditions.
91(08) -- Expeditions: 2007-08 SANAE.
B -- Geology and soil sciences.
(*7) -- Antarctic regions.
(*78) -- Sub-Antarctic islands.
(*783) -- Prince Edward Islands.
SPRI record no.: 191060

MARCXML

LDR 02739naa#a2200000#a#4500
001 SPRI-191060
005 20220925201148.0
007 ta
008 220925s2009####xx#a##|##|###|0||#0|eng#d
035 ## ‡aSPRI-191060
040 ## ‡aUkCU-P‡beng‡eaacr
100 1# ‡aHaussmann, Natalie S.
245 10 ‡aFine scale variability in soil frost dynamics surrounding cushions of the dominant vascular plant species (Azorella selago) on sub-Antarctic Marion Island /‡cNatalie S. Haussmann, Jan C. Boelhouwers, Melodie A. McGeoch.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2009.
300 ## ‡ap. 257-268 :‡bill., diags., table.
500 ## ‡aGeografiska Annaler. Series A. Physical Geography. Vol. 91A(4) :257-268 (2009).
520 3# ‡aExamines fine-scale variability in soil temperature and moisture parameters, specifically focusing on frost cycle characteristics around cushions of Azorella selago. Frost season was characterised by numerous low intensity and very shallow frost cycles. Soils on eastern cushion sides had lower mean and maximum temperatures in winter than those on western cushion sides, and also lower variability in winter temperature, probably as result of higher wind speeds on western cushion sides and/or eastern, lee-side snow accumulation. Despite mild frost climate there was extensive frost heave in study area, indicating formation of needle ice above -2°C. Results demonstrate effectiveness of frost pull as heave mechanism under shallow frost conditions, and highlight important role of Azorella cushions in modifying site microclimates and potentially providing microhabitats. The latter are particularly important in light of current climate change trends on island, as continued warming and drying will increase need for thermal and moisture refugia.
650 07 ‡a551.58 -- Climatology.‡2udc
650 07 ‡a551.584.3 -- Microclimates, terrain and soil.‡2udc
650 07 ‡a631.4 -- Soil science.‡2udc
650 07 ‡a631.43 -- Soils, physical and mechanical properties.‡2udc
650 07 ‡a551.524.37 -- Frosts.‡2udc
650 07 ‡a551.343.7 -- Frost, soil moisture and surface water, effect on movement of.‡2udc
650 07 ‡a58 -- Botany.‡2udc
650 07 ‡a582.893 -- Umbelliferae: Azorella selago.‡2udc
650 07 ‡a581.5 -- Plant behaviour.‡2udc
650 07 ‡a551.345 -- Permafrost. Cryopedology.‡2udc
650 07 ‡a91(08) -- Expeditions: 1959- South African National Antarctic Expeditions.‡2udc
650 07 ‡a91(08) -- Expeditions: 2007-08 SANAE.‡2udc
650 07 ‡aB -- Geology and soil sciences.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*78) -- Sub-Antarctic islands.‡2udc
651 #7 ‡a(*783) -- Prince Edward Islands.‡2udc
700 1# ‡aBoelhouwers, Jan C.
700 1# ‡aMcGeoch, Melodie A.
773 0# ‡7nnas ‡tGeografiska Annaler. Series A. Physical Geography. ‡gVol. 91A(4) (2009) ‡wSPRI-40621
916 ## ‡a2010/06/22 -- HS
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20220925 ‡bHS