Soil temperature survey in a mountain basin

Trask, J. C.; Fogg, Graham E.

doi:10.1016/j.geoderma.2020.114202

Cited by 5 publications

(3 citation statements)

References 49 publications

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“…However, other authors have suggested that species present in the upper limit of vegetation are controlled by the availability of safe sites for colonization, survival, and growth among rocky substrate [47]. Concerning soil temperature, the snow cover on the higher summits was highly variable and likely depended on micro-topography (e.g., slopes on the steepest peaks are windswept and snow does not persist very long there even in the winter), as other alpine studies have reported (e.g., [45,[65][66][67]).…”

Section: Discussionmentioning

confidence: 91%

“…The species that occurred at all elevations (9 in SC and 4 in TF, Figure 1 and Appendix A), had broad habitat ranges, morphological variability, and latitudinal distributions (e.g., A. monantha, Azorella selago, Nardophyllum bryoides, E. rubrum, Luzula alopecurus), including several dwarf shrubs and cushions with adaptations to survive under different climatic conditions. Regarding soil temperatures, we registered a long series of values around 0 • C in the lowest summits on both sites, due to deep snow cover in wintertime (from May to October) that removes diurnal temperature variations (e.g., [45,[65][66][67]).…”

Section: Discussionmentioning

confidence: 99%

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Variation in Alpine Plant Diversity and Soil Temperatures in Two Mountain Landscapes of South Patagonia

et al. 2021

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Alpine environments and their temporal changes are rarely studied at high latitudes in the southern hemisphere. We analyzed alpine plants, soil temperatures, and growing-season length in mountains of two landscapes of South Patagonia (46° to 56° SL): three summits (814–1085 m a.s.l) surrounded by foothill grasslands in Santa Cruz province (SC), and four summits (634–864 m a.s.l.) in sub-Antarctic forests of Tierra del Fuego province (TF). Sampling followed the protocolized methodology of the Global Observational Research Initiative in Alpine Environments (GLORIA). Factors were topography (elevation and cardinal aspect) and time (baseline vs. re-sampling for plants, five annual periods for temperatures), assessed by univariate and multivariate tests. Plant composition reflected the lowland surrounding landscapes, with only 9 mountain species on 52 totals in SC and 3 on 30 in TF. Richness was higher in re-sampling than baseline, being assemblages more influenced by aspect than elevation. Mean annual soil temperature and growing-season length, which varied with topography, were related to the Multivariate El Niño Southern Oscillation Index (MEI) but did not show clear warming trends over time. We highlight the importance of long-term studies in mountainous regions of extreme southern latitudes, where factors other than warming (e.g., extreme climate events) explain variations.

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Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Variation in Alpine Plant Diversity and Soil Temperatures in Two Mountain Landscapes of South Patagonia

et al. 2021

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“…The analysis of stable isotope compositions of water can give insights into different water sources (such as rainfall, snowpack, springs, groundwater), recharge and evaporation processes (e.g. Sprenger et al, 2016); it is complemented here by electrical conductivity measurements that provide additional information on subsurface flow paths and relative water residence times in the subsurface (Cano-Paoli et al, 2019), by temperature measurements of water to trace connectivity between water sources and the atmosphere (Constantz, 2008), and by soil temperature measurements to gain insights into periods of thermal insulation from the seasonal snowcover (Trask et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Studying the dynamic of a high alpine catchment based on multiple natural tracers

Michelon

Ceperley

Beria

et al. 2022

Preprint

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Abstract. Hydrological processes in high elevation catchments are largely influenced by snow accumulation and melt, as well as summer rainfall input. The use of the stable isotopes of water as a natural tracer has become popular over recent years to characterize water flow paths and storage in such environments, in conjunction with electric conductivity (EC) and water temperature measurements. In this work, we analyzed in detail the potential of year round samples of these natural tracers to characterize hydrological processes in a snow-dominated Alpine catchment. Our results underline that water temperature measurements in springs, groundwater and in-stream are promising to trace flow path depth and relative flow rates. The stable isotopes of water are shown here to be particularly valuable to get insights into the interplay of subsurface flow and direct snowmelt input to the stream during winter and early snow melt periods. Our results underline the critical role of subsurface flow during all melt periods and the presence of snowmelt even during winter base flow. We furthermore discuss why reliably detecting the role of subsurface flow requires year-round water sampling in such environments. A key conclusion of our work is the added value of soil and water temperature measurements to interpret EC and isotope analyses, by giving additional information on snow-free periods and on flow path depths.

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Extremely randomized trees versus random forest, group method of data handling, and artificial neural network

Salim

2023

Handbook of Hydroinformatics

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Soil temperature survey in a mountain basin

Cited by 5 publications

References 49 publications

Variation in Alpine Plant Diversity and Soil Temperatures in Two Mountain Landscapes of South Patagonia

Variation in Alpine Plant Diversity and Soil Temperatures in Two Mountain Landscapes of South Patagonia

Studying the dynamic of a high alpine catchment based on multiple natural tracers

Extremely randomized trees versus random forest, group method of data handling, and artificial neural network

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