The Reclamation Engineering-technology Research Of Arable Land In Songzao Mining Area In Chongqing

This paper selected the Songzao Mining in Chongqing province as the study area, and studied themeasures for reclamation technology engineering using the methods of literature review,experimental design, field research and statistical analysis. First, according to the way ofhigh-density electrical and analysis of physical and chemical properties of soil and soil infiltrationexperiment, the mechanism of lack of water of the paddy field and selection of reclamationtechnology were studied in the study area; Second, the treatment using water-retaining is optimalfor the recovery of water keeping layer under the cultivation layer according to the differentmeasures of the reclamation for the paddy field in the different areas and the analysis of theindicators of the water consumption, production and economic.Through the experiment that addedthe water-retaining into the soil with the different types and thickness, the variation of themoisture, evaporation, water consumption and water keeping effect of the dry rice paddy using thewater-retaining for reclamation were obtained. Finally, the reclamation engineering for the paddyfield was got from perspective of the analysis of the supply and demand of water resources, waterengineering and irrigation water, and then a reclamation engineering system for the subsidencearea in the Songzao Mining was built combining different regions and stages of dry landreclamation research for measures and engineering.