Westfaelische Wilhelms Muenster University

Münster, Germany

Westfaelische Wilhelms Muenster University

Münster, Germany

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Guo Q.-J.,CAS Beijing Institute of Geographic Sciences and Nature Resources Research | Chen T.-B.,CAS Beijing Institute of Geographic Sciences and Nature Resources Research | Yang J.,CAS Beijing Institute of Geographic Sciences and Nature Resources Research | Strauss H.,Westfaelische Wilhelms Muenster University | And 5 more authors.
Huanjing Kexue/Environmental Science | Year: 2011

This study has taken advantage of the characteristics of concentration of soil organic matter (SOC) and δ13CSOC values to provide proofs for environment quality assessment and to know more about polluted sources, sizes and processes in Beijing steel company area. δ13C values of SOC is good for tracing sources and documenting shifts in community composition and distribution. Two sections (Beijing steel company area and Yongledian, Tongzhou) which belong to two different soil types collected in Beijing, and organic carbon isotopic composition and total soil organic carbon were analyzed. These results shows that SOC of soil samples from Beijing steel company area are quite high, and even 9.7% at the surface sample, however SOC from unpolluted area (Yongledian area) is lower than those of industrial area. δ13CSOC from soils of Beijing steel company area and Yongledian area respectively vary from -24.8‰ to -23.1‰ and -26.4‰ to -20.5‰, the results are quite different. The results reflect that there are different organic carbon sources in different types' soil: Organic carbon from Beijing steel company area has been mainly affected by coal burning, soil organic carbon concentrations are quite high, and pollution can affect on soils 70 cm deep underground; and soils from Yongledian area, have been not polluted, and organic matter is from natural litter (C3 plants). Although there are different soil organic carbon concentrations and isotope compositions, two soil sections have similar variation trends. This study provides proofs for environment quality assessment and know more about polluted and natural sources, sizes in Beijing.

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