Complete Courses - Earn Discounts | For a limited time, earn up to 30% OFF!Find out more
I enjoy this topic.
Soil degradation is the decline in soil quality caused by its improper use, usually for agricultural, pastural, industrial or urban purposes. Soil degradation is a serious global environmental problem and may be exacerbated by climate change. It encompasses physical, chemical and biological deterioration.
it is gud to rem what u learnt in high school
Reducir la deforestacion contribuye a la conservación del suelo.
Muy interesante este tema para poder conservar tanto los suelos como los organismos que dependen de estos
La conservación de suelos es parte de la conservación de Tierras: la protección, mejoramiento y el uso de Recursos naturales, acorde a principios que asegurarán el más alto beneficio económico y social al hombre y su ambiente, ahora y en el futuro
la degradación del suelo de da debido (aveces) a la actividad humana, se han creado varios métodos para prevenir esto. como los rompe vientos o cortavientos, cultivos de terraza, hay diferentes tipos de cultivos. minimizando la reforestacion se puede conservar el suelo.
This is very important because that keeps soil fertility in good state. Another important thing is promotion of Sustainable agriculture using no till, contour, windbreaks not forgetting agro forestry against soil erosion.
Does resting contribute to soil conservation?
Because soil degradation is often caused by human activity, soil conservation usually requires changes in those activities. Soil conservation is very important to agriculture, so various conservation methods have been devised to halt or minimize soil degradation during farming. These methods include:
construction of windbreaks,
strip cropping and
Creating windbreaks by planting tall trees along the perimeter of farm fields can help control the effects of wind erosion. Windbreaks reduce wind speed at ground level, an important factor in wind erosion.
They also help trap snow in the winter months, leaving soil less exposed. As a side benefit, windbreaks also provide a habitat for birds and animals. One drawback is that windbreaks can be costly to farmers because they reduce the amount of available cropland.
One of the easiest ways to prevent wind and water erosion of croplands is to minimize the amount of tillage, or turning over of the soil. In no-till agriculture (also called conservation tillage), the land is disturbed as little as possible by leaving crop residue in the fields.
Special seed drills inject new seeds and fertilizer into the unplowed soil. A drawback of this method is that the crop residue can serve as a good habitat for insect pests and plant diseases.
Contour farming involves plowing and planting crop rows along the natural contours of gently sloping land. The lines of crop rows perpendicular to the slope help to slow water runoff and thus inhibit the formation of rills and gullies.
Terracing is a common technique used to control water erosion on more steeply sloped hills and mountains. Broad, level terraces are constructed along the contours of the slopes, and these act as dams trapping water for crops and reducing runoff.
Strip cropping involves the planting of different crops on alternating strips of land. One crop is usually a row crop such as corn, while the other is a ground-covering crop such as alfalfa. The cover crop helps reduce water runoff and traps soil eroded from the row crop.
If the cover crop is a nitrogen-fixing plant (e.g. alfalfa, soybeans), then alternating the strips from one planting to the next can also help maintain topsoil fertility.
Agroforestry is the process of planting rows of trees interspersed with a cash crop. Besides helping to prevent wind and water erosion of the soil, the trees provide shade which helps promote soil moisture retention.
Decaying tree litter also provides some nutrients for the inter-planted crops. The trees themselves may provide a cash crop. For example, fruit or nut trees may be planted with a grain crop.
Nous enverrons les instructions pour reinitialiser votre mot de passe à votre adresse e-mail associée. Veuillez marquer votre adresse e-mail actuelle.