Long-term soil temperature dynamics in the Sierra Nevada, Spain

Marc Oliva, Antonio Gómez Ortiz, Ferran Salvador, Montserrat Salvà, Paulo Pereira, Miguel Geraldes

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Soil temperatures play a key role on the dynamics of geomorphological processes in periglacial environments. However, little is known about soil thermal dynamics in periglacial environments of semiarid mid-latitude mountains, where seasonal frost is dominant. From September 2006 to August 2012 we have monitored soil temperatures at different depths (2, 10, 20, 50 and 100. cm) in a solifluction landform located at 3005. m.a.s.l. in the summit area of the Sierra Nevada (South Spain). Mean annual temperatures in the first meter of the soil ranged from 3.6 to 3.9. °C while the mean annual air temperature at the nearby Veleta peak was 0.08. °C. Therefore, these data point out the inexistence of widespread permafrost conditions today in this massif. Seasonal frost controls the geomorphodynamics even in the highest lands. Climate conditions have shown a large interannual variability, as it is characteristic in a high mountainous Mediterranean environment. These variations are reflected in the patterns of soil thermal dynamics. The depth and duration of the frozen layer are strongly conditioned by the thickness of the snow cover. The date of the first significant snowfalls conditioned the beginning and rhythm of freezing of the soil. Wet years resulted in a thick snow cover which insulated the ground from external climate oscillations and favored a shallow frost layer (2008-2009, 2009-2010 and 2010-2011). On the other hand, years with low precipitations promoted deeper freezing of the soil down to 60-70. cm extending until late May or early June (2006-2007, 2007-2008 and 2011-2012). When snow melted a high increase of temperatures of 10-12. °C in few weeks was recorded at all depths. At this time of the year, periglacial activity is enhanced due to higher water availability and the existence of freeze-thaw cycles. These were recorded mostly in spring and autumn in the first 50. cm depth of the soil, ranging from 9.8. days (at 2. cm) to 3.7. days (at 50. cm).However, the inactivity of solifluction landforms suggests that the combination of present-day soil temperatures together with moisture conditions is not favorable to promote solifluction activity in the periglacial belt of the Sierra Nevada.Future climate scenarios point to a temperature increase and precipitation decrease in the area, which would entail deeper but shorter frozen soil layers. These conditions would not be favorable for active periglacial slope processes in the Sierra Nevada.

Original languageEnglish
Pages (from-to)170-181
Number of pages12
JournalGeoderma
Volume235-236
DOIs
Publication statusPublished - 2014

Fingerprint

solifluction
soil temperature
Spain
frost
periglacial environment
landforms
snowpack
soil
climate
snow
freezing
snow cover
landform
heat
frozen soils
temperature
permafrost
freeze-thaw cycles
climate oscillation
Mediterranean environment

Keywords

  • Periglacial environment
  • Seasonal frost
  • Sierra Nevada
  • Snow cover
  • Soil temperatures
  • Solifluction processes

ASJC Scopus subject areas

  • Soil Science

Cite this

Oliva, M., Gómez Ortiz, A., Salvador, F., Salvà, M., Pereira, P., & Geraldes, M. (2014). Long-term soil temperature dynamics in the Sierra Nevada, Spain. Geoderma, 235-236, 170-181. https://doi.org/10.1016/j.geoderma.2014.07.012

Long-term soil temperature dynamics in the Sierra Nevada, Spain. / Oliva, Marc; Gómez Ortiz, Antonio; Salvador, Ferran; Salvà, Montserrat; Pereira, Paulo; Geraldes, Miguel.

In: Geoderma, Vol. 235-236, 2014, p. 170-181.

Research output: Contribution to journalArticle

Oliva, M, Gómez Ortiz, A, Salvador, F, Salvà, M, Pereira, P & Geraldes, M 2014, 'Long-term soil temperature dynamics in the Sierra Nevada, Spain', Geoderma, vol. 235-236, pp. 170-181. https://doi.org/10.1016/j.geoderma.2014.07.012
Oliva, Marc ; Gómez Ortiz, Antonio ; Salvador, Ferran ; Salvà, Montserrat ; Pereira, Paulo ; Geraldes, Miguel. / Long-term soil temperature dynamics in the Sierra Nevada, Spain. In: Geoderma. 2014 ; Vol. 235-236. pp. 170-181.
@article{1ee47850102c4522b4a0eb65004ddc5d,
title = "Long-term soil temperature dynamics in the Sierra Nevada, Spain",
abstract = "Soil temperatures play a key role on the dynamics of geomorphological processes in periglacial environments. However, little is known about soil thermal dynamics in periglacial environments of semiarid mid-latitude mountains, where seasonal frost is dominant. From September 2006 to August 2012 we have monitored soil temperatures at different depths (2, 10, 20, 50 and 100. cm) in a solifluction landform located at 3005. m.a.s.l. in the summit area of the Sierra Nevada (South Spain). Mean annual temperatures in the first meter of the soil ranged from 3.6 to 3.9. °C while the mean annual air temperature at the nearby Veleta peak was 0.08. °C. Therefore, these data point out the inexistence of widespread permafrost conditions today in this massif. Seasonal frost controls the geomorphodynamics even in the highest lands. Climate conditions have shown a large interannual variability, as it is characteristic in a high mountainous Mediterranean environment. These variations are reflected in the patterns of soil thermal dynamics. The depth and duration of the frozen layer are strongly conditioned by the thickness of the snow cover. The date of the first significant snowfalls conditioned the beginning and rhythm of freezing of the soil. Wet years resulted in a thick snow cover which insulated the ground from external climate oscillations and favored a shallow frost layer (2008-2009, 2009-2010 and 2010-2011). On the other hand, years with low precipitations promoted deeper freezing of the soil down to 60-70. cm extending until late May or early June (2006-2007, 2007-2008 and 2011-2012). When snow melted a high increase of temperatures of 10-12. °C in few weeks was recorded at all depths. At this time of the year, periglacial activity is enhanced due to higher water availability and the existence of freeze-thaw cycles. These were recorded mostly in spring and autumn in the first 50. cm depth of the soil, ranging from 9.8. days (at 2. cm) to 3.7. days (at 50. cm).However, the inactivity of solifluction landforms suggests that the combination of present-day soil temperatures together with moisture conditions is not favorable to promote solifluction activity in the periglacial belt of the Sierra Nevada.Future climate scenarios point to a temperature increase and precipitation decrease in the area, which would entail deeper but shorter frozen soil layers. These conditions would not be favorable for active periglacial slope processes in the Sierra Nevada.",
keywords = "Periglacial environment, Seasonal frost, Sierra Nevada, Snow cover, Soil temperatures, Solifluction processes",
author = "Marc Oliva and {G{\'o}mez Ortiz}, Antonio and Ferran Salvador and Montserrat Salv{\`a} and Paulo Pereira and Miguel Geraldes",
year = "2014",
doi = "10.1016/j.geoderma.2014.07.012",
language = "English",
volume = "235-236",
pages = "170--181",
journal = "Geoderma",
issn = "0016-7061",
publisher = "Elsevier",

}

TY - JOUR

T1 - Long-term soil temperature dynamics in the Sierra Nevada, Spain

AU - Oliva, Marc

AU - Gómez Ortiz, Antonio

AU - Salvador, Ferran

AU - Salvà, Montserrat

AU - Pereira, Paulo

AU - Geraldes, Miguel

PY - 2014

Y1 - 2014

N2 - Soil temperatures play a key role on the dynamics of geomorphological processes in periglacial environments. However, little is known about soil thermal dynamics in periglacial environments of semiarid mid-latitude mountains, where seasonal frost is dominant. From September 2006 to August 2012 we have monitored soil temperatures at different depths (2, 10, 20, 50 and 100. cm) in a solifluction landform located at 3005. m.a.s.l. in the summit area of the Sierra Nevada (South Spain). Mean annual temperatures in the first meter of the soil ranged from 3.6 to 3.9. °C while the mean annual air temperature at the nearby Veleta peak was 0.08. °C. Therefore, these data point out the inexistence of widespread permafrost conditions today in this massif. Seasonal frost controls the geomorphodynamics even in the highest lands. Climate conditions have shown a large interannual variability, as it is characteristic in a high mountainous Mediterranean environment. These variations are reflected in the patterns of soil thermal dynamics. The depth and duration of the frozen layer are strongly conditioned by the thickness of the snow cover. The date of the first significant snowfalls conditioned the beginning and rhythm of freezing of the soil. Wet years resulted in a thick snow cover which insulated the ground from external climate oscillations and favored a shallow frost layer (2008-2009, 2009-2010 and 2010-2011). On the other hand, years with low precipitations promoted deeper freezing of the soil down to 60-70. cm extending until late May or early June (2006-2007, 2007-2008 and 2011-2012). When snow melted a high increase of temperatures of 10-12. °C in few weeks was recorded at all depths. At this time of the year, periglacial activity is enhanced due to higher water availability and the existence of freeze-thaw cycles. These were recorded mostly in spring and autumn in the first 50. cm depth of the soil, ranging from 9.8. days (at 2. cm) to 3.7. days (at 50. cm).However, the inactivity of solifluction landforms suggests that the combination of present-day soil temperatures together with moisture conditions is not favorable to promote solifluction activity in the periglacial belt of the Sierra Nevada.Future climate scenarios point to a temperature increase and precipitation decrease in the area, which would entail deeper but shorter frozen soil layers. These conditions would not be favorable for active periglacial slope processes in the Sierra Nevada.

AB - Soil temperatures play a key role on the dynamics of geomorphological processes in periglacial environments. However, little is known about soil thermal dynamics in periglacial environments of semiarid mid-latitude mountains, where seasonal frost is dominant. From September 2006 to August 2012 we have monitored soil temperatures at different depths (2, 10, 20, 50 and 100. cm) in a solifluction landform located at 3005. m.a.s.l. in the summit area of the Sierra Nevada (South Spain). Mean annual temperatures in the first meter of the soil ranged from 3.6 to 3.9. °C while the mean annual air temperature at the nearby Veleta peak was 0.08. °C. Therefore, these data point out the inexistence of widespread permafrost conditions today in this massif. Seasonal frost controls the geomorphodynamics even in the highest lands. Climate conditions have shown a large interannual variability, as it is characteristic in a high mountainous Mediterranean environment. These variations are reflected in the patterns of soil thermal dynamics. The depth and duration of the frozen layer are strongly conditioned by the thickness of the snow cover. The date of the first significant snowfalls conditioned the beginning and rhythm of freezing of the soil. Wet years resulted in a thick snow cover which insulated the ground from external climate oscillations and favored a shallow frost layer (2008-2009, 2009-2010 and 2010-2011). On the other hand, years with low precipitations promoted deeper freezing of the soil down to 60-70. cm extending until late May or early June (2006-2007, 2007-2008 and 2011-2012). When snow melted a high increase of temperatures of 10-12. °C in few weeks was recorded at all depths. At this time of the year, periglacial activity is enhanced due to higher water availability and the existence of freeze-thaw cycles. These were recorded mostly in spring and autumn in the first 50. cm depth of the soil, ranging from 9.8. days (at 2. cm) to 3.7. days (at 50. cm).However, the inactivity of solifluction landforms suggests that the combination of present-day soil temperatures together with moisture conditions is not favorable to promote solifluction activity in the periglacial belt of the Sierra Nevada.Future climate scenarios point to a temperature increase and precipitation decrease in the area, which would entail deeper but shorter frozen soil layers. These conditions would not be favorable for active periglacial slope processes in the Sierra Nevada.

KW - Periglacial environment

KW - Seasonal frost

KW - Sierra Nevada

KW - Snow cover

KW - Soil temperatures

KW - Solifluction processes

UR - http://www.scopus.com/inward/record.url?scp=84904466102&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84904466102&partnerID=8YFLogxK

U2 - 10.1016/j.geoderma.2014.07.012

DO - 10.1016/j.geoderma.2014.07.012

M3 - Article

AN - SCOPUS:84904466102

VL - 235-236

SP - 170

EP - 181

JO - Geoderma

JF - Geoderma

SN - 0016-7061

ER -