Content and distribution of organic carbon in urban forest soil in different function areas in Nanjing City, China

YANG Jingyu,YU Yuanchun,CHEN Yu,WANG Xi, Vasenev V.I.

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2016, Vol. 40 ›› Issue (01) : 22-26.

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南京林业大学学报（自然科学版）
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JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2016, Vol. 40 ›› Issue (01) : 22-26. DOI: 10.3969/j.issn.1000-2006.2016.01.004

Content and distribution of organic carbon in urban forest soil in different function areas in Nanjing City, China

  • YANG Jingyu1,YU Yuanchun1*,CHEN Yu1,WANG Xi1,2, Vasenev V.I.3
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Abstract

Properties of urban forest soils have been greatly altered by human activities during the progress of urbanization. The urbanization changed not only the scale of soil carbon pool, but also the composition and characteristics of organic carbon in urban forest soil. Total soil organic carbon(SOC), dissolved organic carbon(DOC), microbial biomass carbon(MBC), readily oxidation carbon(ROC)and light fraction organic carbon(LFOC)in 0-30 cm forest soil layers under seven different function areas in Nanjing were studied. The distribution of urban forest soil organic carbon and correlations between different fractions of soil organic carbon were analyzed. The results showed that all of the organic carbon fractions enriched in 0-10 cm soil layers apparently. The soil active organic carbon content in different functional areas decreased with soil depth increasing. Human disturbance exerted great influence on the content of soil organic carbon. The natural forest soil in the suburb accumulated more ROC and MBC. Due to traffic related organic matter input, urban road green belt soils had higher content of SOC, DOC and LFOC. Soils in park, campus and residence community with frequent human activities had lower level of active organic carbon content. There was a significant correlation between soil total organic carbon and the active organic carbon.

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YANG Jingyu,YU Yuanchun,CHEN Yu,WANG Xi, Vasenev V.I.. Content and distribution of organic carbon in urban forest soil in different function areas in Nanjing City, China[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2016, 40(01): 22-26 https://doi.org/10.3969/j.issn.1000-2006.2016.01.004

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