Spatial Patterns of Organic Chlorine and Chloride in Farmland and Forest Soil in the Meicun Area, South East China
(English)Manuscript (preprint) (Other academic)
The concentration and storage of organic chlorine and chloride were determined in topsoil in a coniferous forest soil and a paddy soil at a sampling site in the Meicun area, Anhui Province, P.R. China. Also, the spatial distribution of the two forms of chlorine was determined and linear interpolation was used to construct contour maps of the concentrations. Soil samples were collected at 55 of the nodes in a grid with approximately 120 m between the nodes. In all, 27 samples from the forest and 28 from the paddy soil were collected and analyzed with respect to chloride, organic chlorine, organic carbon, pH, total nitrogen,ammonium and nitrate.
The concentration of organic chlorine was at both sites significantly lower than that of chloride. Furthermore, the concentration of organic chlorine was significantly lower in the paddy as compared to the forest soil whereas the concentration of chloride did not differ significantly.
The analysis of spatial variability suggested that no spatial correlation between the nearest sampling points and those further away were at hand. The contour maps indicated that the distribution pattern of organic chlorine in the forest soil was similar to the distribution of organic carbon, the highest and lowest concentrations of each occurring at about the same locations in the grid. The distribution of chloride showed a different pattern where the highest concentrations coincided with the most elevated parts of the hill. No clear patterns were observed for the three variables in the paddy field.
Organic chlorine, chloride, spatial distribution, soil
Social Sciences Interdisciplinary
IdentifiersURN: urn:nbn:se:liu:diva-79137OAI: oai:DiVA.org:liu-79137DiVA: diva2:538390