[1]WU Ling-zhen,FU Wa-li,YANG Hong-ying,et al.Analysis of Spatial Variability of Pb, Cd and Urban Soil Physical and Chemical Properties-A Case Study of Beibei in Chongqing City[J].Research of Soil and Water Conservation,2011,18(05):171-174.
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Analysis of Spatial Variability of Pb, Cd and Urban Soil Physical and Chemical Properties-A Case Study of Beibei in Chongqing City
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 05
Page number:
171-174
Column:
Public date:
2011-10-20
- Title:
- Analysis of Spatial Variability of Pb, Cd and Urban Soil Physical and Chemical Properties-A Case Study of Beibei in Chongqing City
- Keywords:
- urban green soil; physical and chemical property; Pb; Cd; inverse distance to a power; Beibei region in Chongqing City
- CLC:
- S153;X53
- DOI:
- -
- Abstract:
- As an important part of urban biogeocenose ecosystem, the urban green space soil has a significant meaning to the urban development. To better understand the soils of urban green space and to give full play to its functions, in this paper, we studied the spatial variations of physical and chemical properties of urban green soil in the northeast and southwest parts of Beibei City and also gave a sample urban soil quality evaluation. The soil bulk density, pH, organic matter concentration, CEC, Pb and Cd concentrations of all the soil samples from both parts of Beibei City were tested, and also the spatial variations of these properties were analyzed. The results showed that: (1)the soil bulk density and pH in the southwest area were higher than those from northeast area; (2)both the two parts had high organic matter concentrations, and the organic matter concentrations of northeast area were slightly higher than those from the southwest area; (3)the values of CEC in the southwest area were slightly higher than those in the northeast area; (4)the values of Pb and Cd concentrations in the northeast area were higher than those of the southwest area. In a short time period view, human activities had comparatively larger influences on the urban green soil properties than the natural evolution effects. However, the soil properties tended to back to the natural conditions as using time goes by. Compared with soil environmental quality standard (GB 15618-1995), the Pb and Cd concentrations’ levels were dominated by the second level. Even though the healthy risk of such high heavy metal concentrations had not shown up yet, they do have high potential risk to trigger health hazards.
- References:
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Last Update:
1900-01-01