it is common in the literature to confront the measured 137cs depth profile with the analytical solution of 1d advection-dispersion equation (ade) calibrated for the time of sampling which is a pure transport model useful for undisturbed soils. the degree of accuracy is strongly associated to the soil texture. it has been proven that soil with high clay content can retain radiocesium better. mo...

Abstract Soil functions such as water storage, soil filtration, and reducing reservoir life due to sediment load are directly affected by the process of “soil erosion.” The Universal Loss Equation was adopted predict erodibility factor for watersheds feeding Al-Shewicha trough. K -average factor’s determined value 0.156, indicating that -factor had substantial variability. values linked high sa...

Needle litter decomposition rate and nutrient releases of pure stands black pine Scots under the three different micro-ecologic sites (skidding road, logging residues mineral topsoil) control site (non-harvesting site) were studied. The needle litters Black initially analysed for total carbon concentrations (N, P, K, Ca, S, Mg, Mn, Fe). experiment using litterbags method was carried out in fiel...

Due to the tremendous diversity of microbial organisms in topsoil, estimation saturated richness a belowground ecosystem is still challenging. Here, we intensively surveyed 16S rRNA gene four 1 m2 sampling quadrats typical grassland, with 141 biological or technical replicates generating over 11 million sequences per quadrat. Through these massive data sets and using both non-asymptotic extrapo...

Yield reduction in okra production is mostly associated with cultivation of marginal lands or continuous land cultivation. Hence, the need for sustainable approach to resuscitating soil fertility through Tithonia diversifolia manure application may alter microbial population. Two depths [Topsoil (0-15 cm) and Subsoil (15-30 cm)], three levels applications (control, half recommended at 120 kg N/...

Concern for the offsite impact of eroded sediment and need to develop effective catchment management strategies has directed attention an improved understanding primary sources within catchments potential source fingerprinting techniques provide such information. The study reported here was undertaken in black soil region Northeast China, where erosion is seen as a serious threat sustainable us...