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JOURNAL OF DESERT RESEARCH  2013, Vol. 33 Issue (3): 772-776    DOI: 10.7522/j.issn.1000-694X.2013.00111
Biology and Soil     
Change of Soil Properties with the Restoration of Vegetation in the South Fringe of the Tengger Desert
TIAN Qing1, WANG Jian-bing2, ZHANG De-gang2, WANG Li-de3
1.Forestry College, Gansu Agricultural University, Lanzhou 730070, China;
2.Pratacultural College, Gansu Agricultural University, Lanzhou 730070, China;
3.Gansu Desert Control Research Insititute, Lanzhou 730070, China
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Abstract  

Soil organic carbon (SOC) is a key index of soil quality, and it is the basis for the appraisal of role transition of the terrestrial carbon pool between atmospheric carbon dioxide source and sink. The dynamics of bulk density, porosity, silt content, water-holding capacity, soil organic carbon content, light fraction carbon (LF-C) content, heavy fraction carbon (HF-C) content as well as microbial biomass carbon (MBC) content with the restoration of vegetation were investigated, the results showed that: bulk density exponentially decreased with the time extended after being exclosed, while porosity, silt content and water-holding capacity increased with vegetation restoration. Content of SOC, MBC, LF-C, HF-C showed a significant increase with the prolongation of time. The proportion of LF-C increased while the proportion of HF-C deceased gradually after the exclosure. SOC was negatively correlated with bulk density, while positive correlations were found between SOC and other parameters, which suggest the dynamics of SOC is affected by multiple factors.

Key words:  steppified desert      soil properties      exclosure      Tengger Desert     
Received:  19 November 2012      Published:  11 December 2012
ZTFLH:  S153.6  

Cite this article: 

TIAN Qing1, WANG Jian-bing2, ZHANG De-gang2, WANG Li-de3. Change of Soil Properties with the Restoration of Vegetation in the South Fringe of the Tengger Desert. JOURNAL OF DESERT RESEARCH, 2013, 33(3): 772-776.

URL: 

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00111     OR     http://www.desert.ac.cn/EN/Y2013/V33/I3/772

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