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HU Ke-lin, LI Bao-guo, CHEN De-li. Spatial Varibility of the Regional Shallow Groundwater Depth and Water Quality[J]. Advances in Water Science, 2000, 11(4): 408-414.
Citation: HU Ke-lin, LI Bao-guo, CHEN De-li. Spatial Varibility of the Regional Shallow Groundwater Depth and Water Quality[J]. Advances in Water Science, 2000, 11(4): 408-414.

Spatial Varibility of the Regional Shallow Groundwater Depth and Water Quality

Funds: The project is a key research programme in the 9th Five-Year Plan in China (96-004-01-14-2) and Sino-Australia Cooperative Research ACIARP roject (LUR 1/96/164).
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  • Received Date: August 26, 1999
  • Revised Date: November 06, 1999
  • 139 observing points were sampled in Quzhou County in Huabeiplain.The depth of groundwater,salt and nitrate content of groundwater were measured.The geostatistics theory was applied to analyze the data.The results indicated that the depth of groundwater showed a normal distribu tion,the salt content showed a lognormal distribution and the nitrate content showed neither a normal nor a lognormal distribution.The rational sampling number was determined within a given precision at a known confidence level.By the semivariance analysis those observ items were correlated in a given spatial range.The Kriging method was applied to estimate the unobserved points and generate the contourmap.These results show some merit in rational using the groundw ater resource and preventing soil secondary salinization and the nitrate pollution.
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