Abstract Background Microbial residues are significant contributors to stable soil organic carbon (SOC). Soil aggregates effectively protect microbial against decomposition; thus, residue accumulation and distribution among determine long-term SOC stability. However, how tree species influence of remains largely unknown, hindering the chances develop policies for management. Here, we investigat...

Reddish fine sediment runoff from upland fields has been one of the causes of coastal environmental pollution in Okinawa, Japan. Planting grass strips is a well-known measure to reduce runoff of nonpoint-source pollutants from agricultural fields. In this study, we investigated the performance of a centipede grass (Eremochloa ophiuroides (Munro) Hack.) strip for reducing sediment runoff from an...

This paper investigates the properties of some natural fine aggregates in Minna and its environs. Nine soil samples were obtained from different locations and transported to Civil Engineering Laboratory, Federal University of Technology, Minna, Nigeria. Tests conducted on the soil samples include: specific gravity, sieve analysis, bulk density and silt content. Test result revealed the specific...

The objective of this work was to evaluate the transport of Escherichia coli cells in undisturbed cores of a brown leached soil collected at La Côte St André (France). Two undisturbed soil cores subjected to repeated injections of bacterial cells and/or bromide tracer were used to investigate the effect of soil hydrodynamics and ionic strength on cell mobility. Under the tested experimental con...

The objective of this research was to assess the effect of skidding machinery on soil physical and micromorphological properties. The different positions (control or non-traffic areas, left wheel track, right wheel track and log track) and two soil depths (0 10 and 10 20 cm) in three repetitions were investigated. The results showed that average soil dry bulk density in four positions and two s...

This research classifies the physical morphology (form and structure) of bioaerosols emitted from open windrow composting. Aggregation state, shape and size of the particles captured are reported alongside the implications for bioaerosol dispersal after release. Bioaerosol sampling took place at a composting facility using personal air filter samplers. Samples were analysed using scanning elect...

Rhizosphere soil ecosystems are represented by the diversity of different aggregate-size classes, such as large macroaggregates, small mesoaggregates, and microaggregates. Though these classes represent distinct biological, chemical, physical properties, little is known about their dynamics relationships with belowground aboveground plant traits. In this study, we examined various organic carbo...

Soil erosion – the detachment and transportation of particles from soil aggregates by erosive agents (Stocking, 1984) – is regarded as one of South Africa’s most significant environmental problems (Meadows, 2003). In South Africa, roughly 6 million households derive all or some of their income from agriculture (South African Department of Agriculture, 2007). Roughly 25 % of the population is di...

The mobility of selected heavy metals in trace concentrations was investigated in a standard OECD soil irrigated with the effluent of a real municipal wastewater treatment plant. While Cd, Cu and Ni accumulation-migration patterns were mainly influenced by the mobility of colloids generated from soil organic and inorganic matter, Zn mobility was more influenced by the wastewater content of diss...