Litter decomposition during winter can provide essential nutrients for plant growth in the subsequent growing season, which plays important role in preventing the expansion of dry areas and maintaining the stability of ecotone ecosystems. However, limited information is currently available on the contributions of soil fauna to litter decomposition during winter in such ecosystems. Therefore, a ...

Soil salinity is a major abiotic stress in plant agriculture worldwide. This has led to research into salt tolerance with the aim of improving crop plants. However, salt tolerance might have much wider implications because transgenic salt-tolerant plants often also tolerate other stresses including chilling, freezing, heat and drought. Unfortunately, suitable genetic model systems have been har...

The carbon- and nitrogen-rich soils of montane grasslands are exposed to above-average warming and to altered precipitation patterns as a result of global change. To investigate the consequences of climatic change for soil nitrogen turnover, we translocated intact plant-soil mesocosms along an elevational gradient, resulting in an increase of the mean annual temperature by approx. 2 °C while de...

This paper describes the results of temperature monitoring a frozen wall (FW) around skip shaft potash mine under construction. The data on measurements in control-thermal boreholes were used to parameterize mathematical model heat transfer, which allowed for reconstruction field throughout entire cooled and soil volume. resulting distribution FW zone greater than 1 year was determine strength ...

Different kinds of freezing-point regulators were evaluated to expand the freezing point zone of large yellow croaker, and several treatment methods such as ordinary atmospheric pressure, vacuum environment and injection during the process of penetration were compared to reveal the relationship of diffusion velocities, diffusion time and freezing point of the large yellow croaker. Results obtai...

Artificial ground freezing (AGF) is used worldwide for vertical shaft sinking in difficult hydrogeological conditions. The modern tendency to determine the design parameters of technique based on numerical simulation. This work devoted simulation formation an ice-soil wall soil stratum due AGF and under protection wall. For this purpose, a fully coupled thermo-hydro-mechanical model has been de...

In order to explore the migration rules of solutes in Nacl sand under unidirectional freezing, humidity and solute solubility soil columns with different water content, density concentration were determined by using calibration test TDR technique. The results show that increases rate movement twice during test, salt is affected movement.