Essays about: "roadside soils"

Found 4 essays containing the words roadside soils.

  1. 1. IMPACTS OF ROAD DE-ICING SALTS ON MANGANESE TRANSPORT TO GROUNDWATER IN ROADSIDE SOILS

    University essay from KTH/Miljögeokemi och ekoteknik

    Author : Yingrong Wen; [2012]
    Keywords : Manganese; Mn-oxides; De-icing salts; Leaching test; Ion exchange; Groundwater;

    Abstract : Manganese (Mn) is an important element in soil, it occur natural in minerals and precipitated as Mn-oxides. Several factors could decide the solubility and mobility of Mn in soil water. READ MORE

  3. 2. Plant Responses to Varying Nitrogen Levels

    University essay from Institutionen för geovetenskaper

    Author : FATMA MUGE APAYDIN; [2012]
    Keywords : ;

    Abstract : Studies show that nitrogen enrichment of the soil decreases plant diversity. From this point ofview, anthropogenic N enrichment is a threat to global plant biodiversity. Roadside verges remained one ofthe high potential of floral diversity. Regularly managed roadside verges could partly replace the grasslandhabitats loss in recent decades. READ MORE

  4. 3. Distribution of biogenic and non-biogenic trace metals in roadside soils : a study of Uppsala city, Sweden

    University essay from SLU/Dept. of Soil Sciences

    Author : Paola Bruno Franco; [2005]
    Keywords : Uppsala city; roadside soils; trace metals; distribution;

    Abstract : This study determined and evaluated soil properties and distribution of biogenic (copper, iron, manganese and zinc) and non-biogenic (arsenic, cadmium, chromium, nickel, lead and wolfram) trace metals in the road side topsoil (0-10 cm) and subsoil (10-20 cm) at six sites in Uppsala City. The hypothesis of the study was that depending on the, location traffic intensity, history and industrial activities soil contents of the metals vary regardless of similar bedrock. READ MORE

  5. 4. Traffic-Related Metals in Soil and Sediment in Mauritius

    University essay from Institutionen för geovetenskaper

    Author : Liselott Petersson; [2005]
    Keywords : Copper; lead; zinc; traffic pollution; heavy metal contamination; background concentrations metals; Mauritius;

    Abstract : Trafik utgör en stor föroreningskälla av tungmetaller i vägnära jordar och särskilt är det koppar (Cu), bly (Pb) och zink (Zn) som associeras med fordonstrafik. I ett historiskt perspektiv härrör blyutsläpp främst från bränsleförbränning, medan kopparemissioner (i första hand från slitage av bromsbelägg) och zinkutsläpp (från däck) från trafik står för så mycket som hälften av det urbana utsläppet av koppar och zink till omgivningen. READ MORE