Climate Factors Continued Soil Properties Factors Continued Soil Cover Factors Continued Topography Factors Continued Land Management Factors Continued The consistency in the behavior of the aggregates of 4. The assumption of large aggregates releasing particles due to weak structure must be tested consistently before to derive a conclusion, because involve identifying aggregations factors that could vary substantially among different soils.
For example, the interaction of trivalent or bivalent cations and clay minerals when organic fractions are very low must play a key role in the aggregate stability. What is the responsibility in to hold different aggregate size in soils from regions affected for wind erosion is still unknown.
The sediment mobilized was captured in traps at 0, 6, 14 and 20 cm height, with full capture of suspension in a water tray at the end of the wind tunnel Fig. Those trays were exposed to a constant wind of 5 m s -1 for 1 h in a wind tunnel Figure 2 a. In a particle size distribution from Control treatment, a bare soil; b from aggregates of 4.
At zero height the distribution include the three sizes of particles measured, but with the increase in height, the smallest particles dominate the distribution denoting the saltation process Fig. Total views On Slideshare 0. From embeds 0. Number of embeds 0. Downloads 2. Shares 0. Comments 0. Likes 0. You just clipped your first slide! Suspension: After the saltation begins, the particles hit the surface and knock loose other particles, knocking them into the air.
These include smaller sand particles and clays. They then are lifted into the atmosphere and can be transported long distances until the wind speed decreases. Wise use of our soils requires us to minimize erosion. The best way to control water erosion involve slowing down the flow of water and limiting soil detachment. The best way to prevent this is to keep the soil covered with either growing plants or residues from past crops.
These absorb the energy from raindrops and slow the rate of water flow over the surface, allowing more time to have water infiltrate through the soil. Tillage is very important in agriculture, but there are several best management practices that can help reduce erosion.
Using cover crops, filter strips, contour farming and conservation tillage, and riparian buffers can help reduce or eliminate soil movement. Minimum and no till systems help with both types of erosion.
Erosion Facts and Conservation. Water Erosion and Conservation. Wind Erosion and Conservation. For high school and introductory college students, gain a foundation about the world of soils with our book - Know Soil, Know Life. Visit the Society Store to learn more and purchase your copy today.
Breadcrumb Home. Not only does wind erosion damage the land by drying out the soil and reducing the nutrients of the land, but it can also cause air pollution. Enveloping crops, covering highways, and invading homes, the sand, dust and dirt created from wind erosion can impact plant and human life in numerous ways. The most important effect of wind erosion; the removal of loose particles of sand and soil by the wind. Strong windstorms in arid regions are often referred to as this. Huge heaps of loose, windblown sand common in deserts and near beaches.
Suspension — fine light material is carried along in the water. Saltation — small pebbles and stones are bounced along the river bed. Traction — large boulders and rocks are rolled along the river bed.
These detached particles are then ready for movement by the wind forces. After this initiation of movement, soil particles are moved or transported by distinct mechanisms. Erosion is the wearing away of rock along the coastline.
Destructive waves are responsible for erosion on the coastline. There are four types of erosion: Solution — this is when sea water dissolves certain types of rocks. In the UK, chalk and limestone cliffs are prone to this type of erosion. Wind-blown sand may carve rocks into interesting shapes Figure below. This form of erosion is called abrasion. It occurs any time rough sediments are blown or dragged over surfaces. Aeolian processes involve erosion, transportation, and deposition of sediment by the wind.
These processes occur in a variety of environments, including the coastal zone, cold and hot deserts, and agricultural fields.
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