The impact of transformation in vegetation and soil cover on the soil temperature regime under winter road operation in Bolshezemelskaya tundra.

2019 ◽  
Vol XXIII (1) ◽  
Keyword(s):  
Soil Temperature ◽  
Temperature Regime ◽  
Soil Cover ◽  
Soil Temperature Regime ◽  
Winter Road ◽  
The Impact

scholarly journals The Soil Temperature Regime in the Urban and Suburban Landscapes of Olomouc, Czech Republic

2013 ◽  
Vol 21 (3) ◽  
pp. 27-36 ◽  
Author(s):  
Michal Lehnert
Keyword(s):  
Soil Temperature ◽  
Temperature Regime ◽  
Urban Landscape ◽  
Chemical Properties ◽  
Data Series ◽  
Area Of Interest ◽  
Soil Temperature Regime ◽  
Physical And Chemical ◽  
The Impact ◽  
Properties Of Soil

Abstract The soil temperature regime is a relevant part of comprehensive topoclimatic research. Soil temperature data series measured at selected stations of the metropolitan station system of Olomouc in 2010-2011 were analysed. The focus was on the identification of geofactors influencing the soil temperature regime in the area of interest. The possibility of soil temperature simulation using knowledge of local specifics of the soil temperature regime was verified. The results indicate that the variability of the soil temperature regime was, apart from physical and chemical properties of soil, determined predominately by the character of the relief and the occurrence of related atmospheric inversions. The impact of the urban landscape on the soil temperature regime was not demonstrated. Average daily soil temperature was simulated with satisfying results, based on a model adjusted for a period without snow cover. The results represent a basis for further research on geofactors influencing the soil temperature regime in Olomouc and its surroundings.

scholarly journals The Specificities of the Temperature Regime of Seasonaly Freezing Soils of Tundra Landscape of European North East of Russia

2017 ◽  
pp. 3-21 ◽  
Author(s):  
D. A. Kaverin ◽  
A. V. Pastukhov
Keyword(s):  
Temperature Regime ◽  
Snow Accumulation ◽  
Soil Freezing ◽  
North East ◽  
European North ◽  
Soil Temperature Regime ◽  
Taiga Soils ◽  
The Impact

The specificities of temperature regime of automorphic clayey soils forming under the suffruticous and shrub vegetation within the zone of tundra and forest tundra in the European North-East were studied. As the objects of investigation we chose the organic cryometamorphic soils and cryometamorphic gleezems; in the both soil types the CRM cryometamorphic horizon is developed. The soils are formed in conditions of long-termed seasonal freezing at the absence (deep occurrence) of the permafrost rocks. The dynamics near the zero temperatures (zero curtains) is characterized. The hypothesis, concerning the role of zero curtains in the sustaining of the specific angular-grainy structure within the mass of cryometamorphic horizons is formulated. The mass of cryometamorphic horizons and the depth of present-day zero curtains, which observed at the long-term seasonal soil freezing, correlate to each other. The impact of suffruticous and shrub vegetation on the specificities of winter and summer soil temperature regime is determined. We discovered that the main differences between the soils developing under suffruticous and shrub vegetation tundras are stipulated by the different intensity of the snow accumulation within these areas. The soils that are developed under the shrub vegetation are warmer than soils developed under the suffruticous tundra, where permafrost may occur at the depth of 2-3 cm. In general, seasonaly freezing tundra soils are located in the middle of the range of the automorphic clay loamy soils in the tundra-taiga ecotone of European North-East of Russia, and occupy the niche between permafrost tundra and non-permafrost north taiga soils.

scholarly journals Soil temperature study in Puerto Rico

1969 ◽  
Vol 93 (3-4) ◽  
pp. 149-171
Author(s):  
Jorge L. Lugo-Camacho ◽  
Miguel A. Muñoz ◽  
Juan Pérez-Bolívar ◽  
Gregory R. Brannon
Keyword(s):  
Puerto Rico ◽  
Soil Moisture ◽  
Soil Temperature ◽  
Sea Level ◽  
Air Temperature ◽  
Temperature Regime ◽  
Soil Series ◽  
Soil Temperature Regime ◽  
The Mean ◽  
Mean Annual Air Temperature

Soil temperature measurements from a climate monitoring network in Puerto Rico were evaluated and the difference between mean summer and mean winter soil temperature, known as isotivity value, was calculated. Air and soil temperature was collected from five weather stations of the USDA-Natural Resources Conservation Service from sea level to 1,019 m above sea level and from different soil moisture regimes. Isotivity values ranged from 1.2 to 3.9° C with an average of 2.6° C. The 750-m elevation was identified as the limit between the isohyperthermic and isothermic soil temperature regimes in the perudic soil moisture regime in Puerto Rico. The greatest differences between mean annual soil temperature and mean annual air temperature were observed at Guánica, Combate and Guilarte (2.1 ° C) stations. The smallest differences were observed at Maricao (0.8° C) and Isabela (1.8° C) stations. The study also indicated that the mean annual soil temperature in Puerto Rico can be estimated by adding 1.8° C to the mean annual air temperature or by the equation y = -0.007x + 28.0° C. The equation indicates that 97 percent of the time the behavior of the mean annual soil temperature is a function of elevation. According to the updated soil temperature regime boundaries, eight soil series were established in the Soil Survey of San Germán Area. In an area under the isothermic soil temperature regime, four soil series were classified as Oxisols (Haploperox), two soil series as Inceptisols (Eutrudepts) and two soil series as Mollisols (Argiudolls). This is the first field recognition of the Haploperox soil great group in the United States and its territories.

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