Overgrazing is the act of allowing animals to repeatedly go back to the same plants over a short period of time--generally without any significant amount of rest or recovery--forcing those plants to reduce root or below-ground biomass and above-ground biomass. Overgrazing is a factor of time and poor management, so while overgrazing is bad, severe overgrazing is what will guarantee significant soil erosion and loss in plant and soil health.
Severe overgrazing is when plants are grazed so close to the ground that soil is exposed. When soil is exposed, it has greater potential to be blown or washed away by winds and rain, respectively. Severe overgrazing can be caused by any grazing domestic animal species, however it should be noted species like horses and sheep are the worst contenders because of their dextrous lips enabling their teeth to get closer to the soil surface.
Note as well that overgrazing, severe or not is actually not the worst cause of soil erosion. With overgrazing plants are still rooted to the ground and still anchoring most of the soil to the earth. However with crop production, particularly conventional tillage where soil is exposed prior to seeding and tilling after harvest, no soil is being anchored down by any plants so it is much easier for the winds and rain to take it and carry it away to areas where it will never return.
Just like with better managed grazing practices where animal movements are controlled and pastures are divided into paddocks to allow for more rest, crop fields can be better managed with no-till cropping or reducing the amount of tillage done. For instance, fields don't need to be tilled up almost immediately after harvest, they can be left fallow over winter and tilled somewhat lightly before seeding. It should be noted that we cannot preventall forms of soil erosion, but we can create better management practices to reduce it.
overgrazing a live stock
erosion..it ware's down the soil and whenever floods come in mudslides are possible
Two major causes of soil loss are erosion and deliberate removal. Erosion is natural weathering of soil through water, wind or other weather conditions.
soil erosion
Human acivities such as;Bush burning,bush clearing,overgrazing by animals and so on.
Soil depletion and erosion.
overgrazing a live stock
erosion..it ware's down the soil and whenever floods come in mudslides are possible
how does a person cause a soil erosion
we can prevent soil erosion by: afforestation checking overgrazing (by animals)
It takes plants and weeds from the ground which hold the soil and water in place. This can lead to erosion
It takes plants and weeds from the ground which hold the soil and water in place. This can lead to erosion
Two major causes of soil loss are erosion and deliberate removal. Erosion is natural weathering of soil through water, wind or other weather conditions.
Grazing with hoofed animals such as cattle causes to topsoil to become compacted, and also breaks down soil structure. 'Poor' soil structure is when the soil does not form clumps (or aggregates), but instead exists as fine particles or dust. These fine surface soil particles are then easily blown away by wind or washed away by rain, causing erosion of soil. Compaction prevents rainfall from infiltrating (soaking into) the soil, and so much of it runs off, and this can also cause water erosion by washing away soil.
soil erosion
Human acivities such as;Bush burning,bush clearing,overgrazing by animals and so on.
Soil erosion is mainly caused by rain, wind, flooding, overgrazing, soil exhaustion and deforestation.