Two different fly ash (FA) samples were tested for their ability to give synthetic zeolitic products. Polish bituminous (PB) and South African (SA) coal fly ash (FA) samples, derived from pilot-scale circulated fluidized bed (CFB) combustion facilities, have been utilized as raw materials. The two FAs underwent a hydrothermal activation with 1M NaOH solution at 90°C for 24 h. Two different FA/N...

Forest operations can lead to increased runoff and soil loss on roads skid trails. The aim of this study was evaluate the effectiveness two erosion control treatments applied different segments trails following six natural rainfall events. A total 162 plots 10 m long by 4 wide were established in a Hyrcanian deciduous forest assess ground-based harvesting traffic. experimental setup consisted t...

Modern unceasing processes of dehumification and degradation arable soils require the search for new non-traditional approaches to solving this global environmental problem, which determines relevance research. After all, plowing significantly disrupts thermodynamic interaction soil with factors. The purpose publication is consider regularities evolution properties pedosphere from a geosystem p...

Structure liming aims to improve soil structure (i.e., the spatial arrangement of particles and pores) its stability against external internal forces. Effects lime application on have received considerable interest, but only a few studies investigated effects macro- mesopore networks. We used X-ray computed tomography image macropore networks (ø ≥ 0.3 mm) in columns mesopores 0.01 aggregates fr...

The multi-height (low, L = 3 cm; intermediate, M 100 high, H 200 cm) Beerkan run methodology was applied on both a minimum tilled (MT) (i.e., up to depth of 30 and no-tilled (NT) bare loam soil, the soil water retention curve estimated by BEST-steady algorithm. Three indicators physical quality (SPQ), i.e., macroporosity (Pmac), air capacity (AC) relative field (RFC) were calculated assess impa...

Soil porosity estimated conventionally cannot provide the spatial distribution and geometrical properties of pore networks. This on-farm study assessed impacts grassland–cropland conversion on soil characteristics. aimed to quantify microscale changes in pores near surface (0–10 cm) under grasslands converted croplands managed with a rotation corn (Zea mays L.)–soybean [Glycine max (L.) Merr.] ...

The impact of forwarder traffic on soil physical properties was evaluated on a Gwinnett sandy loam, a commonly found soil of the Piedmont. Soil strength and saturated hydraulic conductivity were significantly altered by forwarder traffic, but reductions in air-filled porosity also occurred. Bulk density did not increase significantly in trafficked treatments. The greatest impacts to soil physic...

Tropical regions have been considered the world's primary agricultural frontier; however, some physico-chemical deficiencies, such as low soil organic matter content, poor soil structure, high erodibility, soil acidity, and aluminum toxicity, have affected their productive capacity. Lime and gypsum are commonly used to improve soil chemical fertility, but no information exists about the long-te...

After pointing out the importance of the saturated hydraulic conductivity (ks) measurements and the difficulties and uncertainties that are present, and after recalling salient aspects of three well-known measurement methods of this parameter (i.e. constant-head tension infiltrometer (TI) method, constant-head pressure infiltrom5 eter (PI) method and soil core (SC) estimates method), the result...

In this study we propose an uspcaling approach to derive time series of (a) REW scale state variables, and (b) effective REW scale soil hydraulic functions to test and parameterise models based on the REW approach. To this end we employed a physically based hydrological model, that represents the typical patterns and structures in the study catchment, and has previously been shown to reproduce ...