RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2011, Vol. 20 >> Issue (12): 1495-.

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SPATIAL AND VERTICAL DISTRIBUTION OF CARBON DIOXIDE CONCENTRATION AND AQUATIC ENVIRONMENTAL EFFECT IN THE SHUIBUYA RESERVOIR OVER QINGJIANG RIVER BASIN, CHINA

ZHAO Dengzhong1,2, LIN Chuxue1, TAN Debao2, CHEN Yongbo1   

  1. (1.China Three Gorge Corporation, Yichang 443007, China|2. Changjiang River Scientific Research Institute, Wuhan 430010, China 
  • Online:2011-12-20

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Abstract:

The Shuibuya reservoir over the Qingjiang River Basin was selected as a case in order to acquire the spatial and temporal distribution of carbon dioxide sources and sinks change. The experiment was carried out for monitoring the vertical profile and navigated measurement of carbon dioxide concentration at May 8 and 9,2010.Then the spatial distribution of carbon dioxide concentration at every layer was acquired by means of interpolation using GIS technology, and the relationship between carbon dioxide concentration and aquatic environmental factors was analyzed in this paper.Data analysis indicated that carbon dioxide concentration in atmosphere above reservoir water was the highest at 05 meter in every layer,and decreased with height increasing.Moreover,navigated measurement showed that carbon dioxide concentration enhanced from the upstream to dam.It was also found that carbon dioxide concentration was obviously influenced by some aquatic environmental factors.It negatively related with water surface temperature,and positively related with chlorophyll.

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