J4 ›› 2012, Vol. 42 ›› Issue (1): 184-189.

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Relationship Between Vegetation and Groundwater in Mu Us Desert

CHENG Dong-hui1,WANG Wen-ke1,HOU Guang-cai2,YANG Hong-bin1,LI Ying2,ZHANG Er-yong3   

  1. 1.College of Environmental Sciences and Engineering, Chang’an University, Xi’an710054, China;
    2.Xi’an Center, China Geological Survey, Xi’an710054, China;
    3.China Geological Survey, Beijing100037|China
  • Received:2011-03-03 Online:2012-01-26 Published:2012-01-26

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Abstract:

The relationship between vegetation and groundwater in the hinterland of Mu Us Desert with 6 indicators, such as vegetation populations and cover, groundwater depth and mineralization, vadose zone moisture content and salinity, were investigated. We established the suitable depth of groundwater, unsaturated zone moisture content, groundwater salinity and the vadose zone salinity for dominated vegetation, Artemisia, Salix psammophila and Carex. The results showed that vegetation populations is very sensitive to groundwater depth and vadose zone moisture content, while vadose zone salinity and groundwater mineralization are nonsensitive indicators. In addition, the vegetation, the moisture of which for growth obtained from groundwater, its cover is more sensitive to groundwater depth, while the total coverage is nonsensitive indicators.

Key words: vegetation population, cover of vegetation, groundwater, vadose zone moisture content, vadose zone salinity, Mu Us Desert

CLC Number: 

  • P641.74
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