| Features of salinity accumulation in an original saline wasteland covered with water-permeable plastic film |
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| DOI：10.7606/j.issn.1000-7601.2012.02.06 |
| Key Words: water-permeable plastic film original saline wasteland features of salinity accumulation |
| Author Name | Affiliation | | GUO Wencong | College of Envrionmental Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
Shanxi Institute of Water Conservancy and Hydropower, Taiyuan, Shanxi 030002, China | | FAN Guisheng | College of Envrionmental Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
College of Water Resources, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China |
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| Abstract: |
| The water-permeable plastic film is a new agricultural technique, its moisture conservation role can control effectively the soil surface moisture evaporation to restrain top enrichment of soil salt, and its
unidirectional permeability can control partly the soil moisture migration to dominate soil salt accumulation. The following observation experiments of soil salinity are devised in the original salinization wasteland under different covering measures, such as covering with water-permeable plastic film, covering with common film and no covering. The results indicate that the water-permeable plastic film can be used to restrain more obviously top enrichment of soil salt, and there is a negative relationship between salinity variation of soil profile and soil moisture of permeative film. So, the water-permeability plastic film can be used for controlling soil salinity accumulation, at the same, the moisture superposition of permeative film can decrease step by step the total saltness of soil profile, then that can realize the saline-alkali soil desalinating step by step. |
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