Plinthosols occur in humid and semi-humid tropical areas of several continents. The geochemistry of Plinthosols is sensitive to changes in the hydromorphic conditions which can be modified, among other factors, by flooding irrigation. Plinthosols located in floodplains of Savannah areas of Central Brazil have been flooded by irrigation for 18 and 28 years. The irrigated crops produce rice in the wet season (October to February) and soybeans in the dry season (June to September). Irrigation water is applied through the use of canals which flood the fields for rice production and keep the water level 60 cm below the soil surface for soybean production. This study compared the geochemistry of irrigation water present in the soil solutionof Plinthosols and in the canal waters. The research was conducted in areas of the irrigation project Luis Alves do Araguaia, State of Goias, Brazil (Figure 1). Water samples were studied in the field (Figure 1) for determination of physical -chemical parameters (pH, Eh, dissolved oxygen, electrical conductivity, total dissolved solids) by a multiparameter water quality meter (Hanna model HI 98194). The study was performed during the dry season at 20 sites (10 sites at the canals and 10 at the soil profile).
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机译：普林斯洛斯在几大洲的潮湿和半湿热地区发生。 Plinthosols的地球化学对水样条件的变化敏感，通过洪水灌溉，可以在其他因素中被修改。位于巴西中部大草原区的洪泛区的Plinthosols已被灌溉淹没18至28岁。灌溉作物在湿季（10月至2月）和旱季（6月至9月）的大豆生产米饭。通过使用灌溉用水来应用，该运河泛滥的土地生产，并使水位60厘米低于土壤面积以进行大豆生产。该研究将灌注水域的地球化学系统与土壤溶液中存在的地球化学和管道中存在。该研究在灌溉项目Luis Alves Do Araguaia，巴西吉亚斯状态（图1）的地区进行。在该领域（图1）研究了水样用于通过多次水质仪（HANNA Model Hi 98194）测定物理化学参数（pH，eH，溶解的氧气，导电性，总溶解的固体）。该研究是在旱季进行的20位点（在土数和土壤剖面上的10个位点）进行。
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