Abstract. Frozen soil infiltration widely occurs in hydrological processes such as seasonal freezing and thawing, snowmelt infiltration, runoff. Accurate measurement simulation of parameters related to frozen are highly important for agricultural water management, environmental issues, engineering problems cold regions. Temperature changes cause pore size distribution variations consequently dy...

The base of solar collector systems is usually installed in soil that contains moisture. In cold regions, due to the low ambient temperature, moisture freezes, creating a risk frost heave. This study analyzed heave mechanism power transmission and transformation foundation, clarified factors affecting way solve layer heave, proposed use heat transfer elements pre-frozen layers prevent foundatio...

A hydrological–thermal coupling discrete element model depicting the unidirectional freezing process of unsaturated silty clay was developed in order to investigate migration law unfrozen water under circumstances. The uses contact heat transfer equation calculate while taking into account latent phase transition. To obtain clay’s characteristic curve, combines content curve with Clausius–Clape...

COLEMAN, M.D., HINCKLEY, T.M., MCNAUGHTON, G., and SMIT, B.A. 1992. Root cold hardiness and native distribution of subalpine conifers. Can. J. For. Res. 22: 932-938. Root and needle cold hardiness were compared in seedlings of subalpine conifers to determine if differences existed among species originating from either cold continental climates or mild maritime climates. Ahies amabilis (Dougl.) ...

Abstract In areas with a pronounced relief, water erosion causes great harm to agriculture and other sectors of the national economy. It leads destruction soil cover, reduction in area arable land, decrease fertility, removal products into floodplains, siltation ponds rivers road network. The scientific goal was identify influence main natural factors (snow reserves, freezing moisture) on forma...

In cold regions, the pore space’s composition and phase state can affect elastic modulus of media. During winter, freezing conditions in soil results release water from space, which significant changes media’s distribution composition. There are a few weaknesses current research with respect to change example frozen soil. This paper presents that Representative Macroscopic Volume (RMV) choice s...

Agricultural ecosystems are important contributors to atmospheric greenhouse gasses (GHGs); however, in situ winter emission data in saline-alkali fields are scarce. Gas samples were collected during different periods, from three rice (R1–R3) and three maize (M1–M3) fields with different soil pH levels and salinity conditions. Carbon dioxide (CO2) emissions in the rice and maize fields decrease...