May 21, 2012 in Science and Environment
Soil erosion is brought by different factors in the environment; the wind, the rain and the gravity. Human activities also contributes such as the cutting of tress, using land for other purposes, minings and other else.
However, there are certain methods that could be used in order to control soil erosion. These methods are reforestation, growing grass or planting vegetables, contour plowing and terracing, planting tress around farmlands, strip cropping and crop rotation.
Reforestation is planting tress in the places in where the trees where previously burned or cut. It aims to replace the cut trees for new ones. Having these new trees will prevent soil erosion as the roots of the trees will absord the water in the ground and hold the soil together.
Growing grasses or planting vegetables to the vacant or unuse lot and places helps to prevent soil erosion. The thick roots of the grasses as will as the roots of the vegetables can hold the particles of soils together.
Contour plowing also prevents the soil from erroding. It is a method of cultivating land along curved lines going around a hill at a fixed level. This kind of cultivation can slows down the runoff of soil and water; thus, it helps to prevent soil to erode.
Planting trees around the farmland also helps to prevent soils in the farm to erode. Some trees in the farmland are intentionally planted for this reason. Aside from this, these trees also serves as windbreaks, protecting the plants specially the young ones not to be damage by strong winds.
Strip cropping also helps in preventing soil erosion. This is an alternative planting of grasses and crops, preventing the topsoil to be blown by the wind or washed by rain.
Crop rotation also helps to prevent soil erosion. This method grows different kinds of plant in different times in the same place. This may add residues to the soil that could bind the soil particles together which minimize soil erosion.