The ammonium assimilated by GS in the production of glutamine can come from various sources, including direct uptake from the soil, reduction of nitrate and nitrite, photorespiration, deamination of phenylalanine catalyzed by phenylalanine ammonia-lyase, and the catabolic release of ammonium during the mobilization of vegetative storage proteins and during senescence.
Recent research has highlighted the positive role of green areas in urban environments, providing numerous social, environmental and economic services, such as mitigation of the urban heat island effect, storm attenuation, increased water infiltration into the soil, reduction of noise and air pollution, among others.
For soil, reduction of the sample size to 0.1 g did not result in uniform improvements.
The effect of soil strength reduction by seismic loading is accounted for in the derived factors of safety and yield coefficients.
Although the consequences of soil quality reduction are generally recognized, the spatial extent of soil degradation is difficult to determine, because no universal equation or soil quality prediction model exists that fits all ecoregions.
Results indicate that successful implementation of SWC intervention in only four zones (south Wollo, east Gojam, south Gonder and north Shewa (R3)) constitute 60% of soil loss reduction in the Blue Nile Basin.
By calculating the engineering shear strain, γ, one can calculate the amount of soil volume reduction, Δεvd, according to the Eq. (1) and as a result get the amount of (varepsilon_{vd}) to use it in the Eq. (1) according to the Eq. (12).
The use of DWTRs as an amendment to urban horticultural soils may provide a low-cost means of immobilizing trace metals without limiting plant uptake of applied fertilizer P. Additional study is required to quantify trace element release from DWTR-amended soils as a function of soil oxidation-reduction status.
Higher yield and better crop growth were observed in the mulched plots, which might be due to conservation of soil moisture and reduction of soil temperature by 4 6 °C.
High concentrations of Na are undesirable in water due to adsorption of Na onto the soil cation exchange sites, dispersion of soil aggregates, and reduction of soil permeability (Pazand and Javanshir 2014; Sethy et al. 2016; Golchin and Azhdary Moghaddam 2016).
