- toxic soils in industry. The toxicity will depend on several factors, with the raw materials, production process, production method, type of production. Which determines the likelihood of the toxicity of soil. Because at every step is the release of toxins into the soil.Saline soil.Saline (saline soil) refers to the soil with the intake of salt dissolved in the soil solution was too much effect. Affect the growth and productivity of crops. Because the symptoms of lack of water, plants And has a collection of ions on toxic plants too, also cause imbalance of nutrients plant.The occurrence and spread of saline soil.Saline soil in Thailand is divided into 2 types, namely, saline soil, land and saline beach. The saline land is both northeast saline soil and saline soil, saline soil มีสา central each type was born, the kind of salt distribution According to the characteristics of the area, and according to the topography as well.Saline soil in the northeast.Source of salt from salt rock underground groundwater salted or sandstone, shale and salt. The another is. Salinity is no uniformity in the same area and salinity varies between layers of soil depths which are seasonal changes. Characteristics of saline soil observation. To see the flaky salt according to the soil surface. And often is empty or not agricultural weed salt tolerance, such as look at thorn years, etc.Causes of saline soil distributionWater soluble salt salt occurs as well. The water is, or vehicles taking salt accumulation in different water flow which causes the saline soil distributionThe cause of nature.Rock or mineral and salt when decay or decay. The chemical and physical processes, it will release the salt. Out of these salts may accumulate stationary or moving with the water and absorbed into the ground floor or absorbed back to the surface by the evaporation of water by the power plants use sunlight or be salted in groundwater level near the ground surface when the water is absorbed on the ground. It will take you.
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