Soil resources.
Earth is the environment that occurs by nature. Due to the decayed ruins of "stones, using a very long time. Rocks disintegrate corrosion will be different sizes when combined with water, air, plants, animal carcasses, carcass made ground beef.
Soil conservation will need to take into consideration the following matters is,
1. Reduce erosion or prevent soil erosion
2. Maintain the quantity of nutrients in the soil, abundance to date.
3. maintain a level soil properties in อินทรีย objects, and every.