- Toxic soil in the manufacturing sector. The toxicity depends on several factors. Based on raw materials Production methods of production yield. Which is an indicator of the likelihood of toxicity of the soil. Because every step is the release of toxins into the soil
saline
salt (saline soil) refers to the amount of soluble salts in the soil solution are excessive. The growth and yield of crops. The plant makes the symptoms of dehydration. And the accumulation of toxic ions in plant too also cause an imbalance of nutrients with
the appearance and spread salt
in the soil is divided into two types, saline land and sea salt. Saline land with saline Northeast. Central and Saline Each soil type is the cause of spreading salt. By nature area And as with topography The
saline northeast
of salt from underground rock salt. Salty groundwater or sandstone The shale is mixed with salt Another look Salinity is no uniformity in the same area and salinity varies between the depth of the soil layer, which changes with the seasons. The nature of the salt is observed. The flaky salt under ground. And often are empty, not agriculture. Or salt-tolerant weeds such as thistles Daeng year as
the spreading salt
, salt, salt occurs as dissolved water. Water is the body or vehicle to carry salt to accumulate in the various water flow. The cause of the spread of soil salinity
caused by natural
mineral salts on the environment degradation or decay. The physical and chemical processes. It will release various salts Out of these salts may accumulate on or move the water to seep into the ground or water back to the surface by evaporation of water by the power of the sun or the plant to groundwater salinity is level. when surface water is absorbed by the soil. Put up with salt after the water evaporated, then it will have accumulated on the surface and the salt marsh that is a source of water. How to pump up the brine or dry salt from the road surface to boil. Salt in the effluent will have enough volume to make the area into a saline or salt water sources. The reservoir was built on the saline or salty water. Cause elevated levels of groundwater makes up the surrounding area and nearby is a saline. Irrigation, lack of planning on the effects of salinity often cause problems for the irrigation system, which takes advantage of it. But with regard to local conditions, and study participants with salinity problems. This will be one way of resolving salinity and deforestation. The condition of the catchment area is inefficient. Cause problems as many of the state's geology, hydrogeology, water changes. The plant will replace the use of back flow into the system, groundwater salinity problems caused by soil salinity management practices to prevent the spread of soil salinity increased. You must consider the causes. Performed by engineering methods. How biological The combination of the two approaches to engineering. It must be designed to reduce or eliminate the flow of groundwater in the balance of the natural world. Not to increase the salinity of groundwater in the basin biological methods. By means of the plant, such as reforestation to prevent the spread of salinity. Defined catchment area to grow wild. Trees or fast growing trees with deep roots. Use a lot of water on a given catchment area. In order to balance water use and groundwater in the area. Can be modified to reduce the salinity of the soil in the valley is the area of water to mix. Amendments to reduce soil salinity down to grow crops. Using salt water leaching from the soil and the soil. Soils with salt can be removed by rinsing with water. The water for washing the soil with both continuity and a cistern at the time. Continuous use of time to correct the soil more quickly, but it requires a lot of water. The flooding is the time to fix the soil slowly. But saving water and using saline benefits under the status quo. Do not leave the ground empty. By mulching or increase crop yields by switching to a crop plant equip the economy. Salt-tolerant plants such as plants like salt.
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