1. การกัดเซาะและพังทลายโดยน้ำ น้ำจำ

First.Erosion and water erosion. Drinking lots of water will directly affect surface erosion surface. To slip through the water. The loss of surface area to a wider area. Eroded gullies or small depending on the strength.2. Deforestation and burning of forests to clear the forest to the ground. And easily leached by water and wind on rain. Water was washed out with water, fertile soil. Soil quality deteriorates
3.Cultivation and tillage methods incorrectly. Land preparation, planting, if not how it would cause a lot of damage to the soil, for example. Plowing the soil dry completely loosens the soil to wind.Burning wood or stubble fields. Humus in the soil to make the soil degradation effect
.

1. Erosion and erosion by water. A lot of water that affect the direct surface erosion surface, water floating on shingles. The loss of surface area, it is a space or a small Groove erosion, depending on strength. 2. deforestation Burning of forests, forest lands to mow the front opening, and is easy to wash by water and wind when rain fall. Water, wash the soil fertile page removed with water, soil quality decay of
3. Land preparation and planting method. Land preparation and planting works, if not, how it will cause damage to the soil, for example, much of the County to loosen soil, while the dry clay, complete with floating out of the wind. Burning of forests or rice in it, hiomat in soil decay damage effect to underground.
.

1.The erosion and collapse of the water affects the soil directly to soil erosion by water, crashing to the ground will be lost skin erosion is a wide area or are small grooves, it's up to the strength2. deforestation, to burn the forest cleared forest, the land is open and easy-to-wash water. When the rain and the wind and rain water washes away the soil fertility, land to the water quality is deteriorating
3.The cultivation and preparation of the soil is not well prepared for the land to the way it was if you don't cultivate that will damage the soil, for example, is very much the plowed while dry land, the land that perfect escape with the wind.The rice stubble burned forests or in the field, will make ฮิวมัส in erosion caused difficulties with more land