This study investigated the dependence of Pu3+ and Pu4+ vertical distribution on the soil characteristics in soddy and forest soil. Soil samples were analysed for organic matter and pH. Special columns with contaminated (239Pu) soil surface were kept for 326 days under field conditions. The analysis of the contaminated soil layers (5 cm each, totalling 20 cm) showed that 81% of 239Pu4+, 44% of ...

in order to investigate the effect of wastewater and compost on transport of heavy metals in a soil column, a factorial experiment based on completely randomized design with three replication was conducted. the variables included three types of water: fresh water (w1), treated wastewater (w2) and a composition of 50% raw wastewater and 50% fresh water (w3). besides, four levels of compost were ...

The experiment of artificial afforestation combining with soil amendment was carried out to investigate the effects of soil amendment on antimony (Sb) chemical forms, and its bioavailability in Chinese antimony mining. This research provides the technical basis for ecological remediation of Sb contaminated soils. The results showed that the soil pH values increased with the increasing of discha...

Deforestation leads to the deterioration of soil fertility which occurs rapidly under tropical climates. Forest rehabilitation is one of the approaches to restore soil fertility and increase the productivity of degraded areas. The objective of this study was to evaluate and compare soil biological properties under enrichment planting and secondary forests at Tapah Hill Forest Reserve, Perak aft...

1 Although much work has been done on factors patterning species trait assemblages in 2 emblematic groups such as plants and vertebrates, more remains to be done in 3 belowground invertebrate species. In particular,relationships between species traits and 4 habitat preferences are still a matter of debate. Springtails were sampled in a 5 heterogeneous landscape centered on the Sénart forest, ne...

1 Although much work has been done on factors patterning species trait assemblages in 2 emblematic groups such as plants and vertebrates, more remains to be done in 3 belowground invertebrate species. In particular,relationships between species traits and 4 habitat preferences are still a matter of debate. Springtails were sampled in a 5 heterogeneous landscape centered on the Sénart forest, ne...

this study aims at comparing the performance of logistic regression, maximum entropy, and multilayer perceptron techniques in preparing the predictive habitat distribution map of amygdalus scoparia in rangelands of qom province. for this purpose, vegetation sampling was done using random systematic methods after identifying pure habitats of this species. for soil sampling, eight profiles were e...

Methyl iodide (MeI) is a promising alternative to methyl bromide in soil fumigation. The pest-control efficacy and ground water contamination risks of MeI as a fumigant are highly related to its gas-phase distribution and leaching after soil application. In this study, the distribution and leaching of MeI in soil following shank injection and subsurface drip application were investigated. Methy...