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[1]LI Jing,LI Suyan,SUN Xiangyang,et al.Characteristics of Distribution of Soil Heavy Metals in Wuhuan, Chaoyang District, Beijing[J].Research of Soil and Water Conservation,2019,26(03):311-317.

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Characteristics of Distribution of Soil Heavy Metals in Wuhuan, Chaoyang District, Beijing

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 03 Page number: 311-317 Column: Public date: 2019-04-12

Title:: Characteristics of Distribution of Soil Heavy Metals in Wuhuan, Chaoyang District, Beijing

Author(s):: LI Jing, LI Suyan, SUN Xiangyang, HU Nuo, YANG Shaobin, LIN Mao, FU Zhen, CUI Meng; College of Forestry, Beijing Forestry University, Beijing 100083, China

Keywords:: urban soil; heavy metal distribution; soil pH; soil organic matter

CLC:: X53

DOI:: -

Abstract:: In order to study and analyze the distribution characteristics and influencing factors of heavy metals in Chaoyang District, Beijing, through residential greenbelts, park greenbelts, street greenbelts, and affiliated greenbelts (including public facilities, external transport and municipal facilities), four kinds of soil use types were used to measure the soil heavy metals such as copper (Cu), zinc (Zn), cadmium (Cd), lead (Pb), and soil pH and organic matter. The results showed that the average content of heavy metals in surface soil, except for Pb, was higher than that of Chinese soil, especially heavy metal Cd, which had reached 0.26 mg/kg, and exceeded the standard of soil environmental quality grade 1; Cu content in the attached green space was the highest, reaching 33.576 mg/kg. Zn content in the soil of residential greenbelt was the highest, reaching 80.636 mg/kg. Cd content was the highest in the street green space, reaching 0.296 mg/kg. Pb content was the highest in the green space of the park, reaching 24.706 mg/kg; in the spatial distribution, spatial distribution pattern of heavy metal Cu and Zn was similar, and overall showed the decreasing trend from northwest to southeast, the content of Cd in the middle was higher, and was higher in north than the south. The heavy metal Pb decreased from southwest to northeast as a whole; according to the correlation analysis, the soil pH had no obvious effect on the heavy metal contents of the soil, while the soil organic matter was significantly related to the contents of heavy metals Zn, Cd, and Pb; the four heavy metals showed significantly positive correlation(p<0.01).

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