Rhizodeposition is considered a primary reason for the plant identity effect. However, the detection of distinct rhizosphere bacterial communities (RBC) with different plant species has been variable. The aim of this study was to examine the potential explanations for this variability using three perennial grassland species. In a Kansas field experiment, over two growing seasons, we sampled RBC...

..................................................................................... 48 4 Introduction ................................................................................................................. 49 Materials and Methods ................................................................................................ 53 Results and Discussion ..................................

The water-soluble heavy metal ions in contaminated soil may enter aquatic ecosystem through runoff, thus causing negative impact on the water environment. In this study, a two-year situ experiment was carried out to explore an effective way reduce runoff erosion and copper (Cu) cadmium (Cd) (Cu: 1,148 mg kg ?1 , Cd: 1.31 ) near large Cu smelter. We evaluated ability influence properties by four...

This work evaluated caffeine removal in a vertical flow constructed wetland (VFCW), planted with Vetiveria zizanioides. The feeding was continuous (synthetic influent: mineral medium and caffeine) to reduce the concentration variations bed. Two influent concentrations (0.75 ± 1.0 mg·L−1 1.5 mg·L−1) were used constant hydraulic load (100 10 L·m−2·d−1). Plant growth monitored weekly, characteriza...

Due to the economic interests in vetiver, Chrysopogon zizanioides (L.) Roberty, molecular and chemical studies are essential to generate information for its sustainable exploitation. The aim of this study was to undertake a molecular and chemical characterization of vetiver accessions of the active germplasm bank of the Universidade Federal de Sergipe. The molecular characteristics of the acces...

Land degradation is becoming one of the severest environmental issues in the world, especially in developing nations. Land degradation, usually accompanied by soil erosion, always results in a decrease or complete loss of land productivity, and produces on-site and off-site pollution to soil and water. The methods for land reclamation are various, including physical, chemical and biological. Th...