Earth Science Frontiers ›› 2011, Vol. 18 ›› Issue (6): 27-33.

• Article • Previous Articles     Next Articles

Estimation of soil carbon storage and its change since 1986 in Zhalong wetland and its surrounding areas, Heilongjiang Province.

  

  1. 1. Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China
    2. School of Earth Sciences and Resources, China University of Geosciences(Beijing), Beijing 100083, China
    3. College of Earth Sciences, Jilin University, Changchun 130061, China
    4. Heilongjiang Academy of Geological Survey, Harbin 150036, China
  • Received:2011-10-21 Revised:2011-11-05 Online:2011-11-25 Published:2011-12-02

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Abstract:

On the basis of data obtained from National Multipurpose Regional Geochemical Survey (NMPRGS) and National Soil Survey in Zhalong wetland and its surrounding areas of Heilongjiang Province, we studied the change of soil carbon storage in  the last twenty years, by estimating soil total carbon density(STCD), soil organic carbon density(SOCD) and soil carbon storage of different land uses. The results indicated that: (1)SOCD (0100 cm) is about 37884 t/km2 in Zhalong wetland; (2)the loss of soil organic carbon was as high as 66.7%70.2%, when wetland degraded to grass land or crop land; (3) from 1986 to 2006, surface soil (00.2 m) organic carbon storage decreased about 21% in the study area, while in Zhalong wetland, surface soil (00.2 m) organic carbon storage increased about 7%.

Key words: carbon density, carbon storage; , Zhalong wetland

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