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Study progress and comparison of soil moisture content measurement methods
Author(s): 
Pages: 17-22+35
Year: Issue:  9
Journal: Geotechnical Investigation & Surveying

Keyword:  soil moistureTDRFDRmicrowave;
Abstract: Different methods have been developed to determine soil moisture content,which can be classified into three categories:destructive,contact and noncontact methods.Based on a detailed study on the principle,advantage and disadvantage of the three methods,the limitation and applicable of each method is presented.Upon the comparison,the best moisture determination method in laboratory is microwave which has high efficiency on drying and the results are reliable,near infrared moisture meter is a good choice if require to nondestructive measurement of moisture content,while the best one in the field is TDR method which can be operated simply and measured continuously.The techniques to determine the soil moisture content is now developing in a fast,long-term,non-destructive and automatic way.
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