When there is rain the forests holds a lot of rainfall to the soil through roots of plants. The water then sinks deeper in the ground and replenishes the supply of the water table. If there was the removal of these forests then water from rain would flow simply through the soil surface and not be retained. Another effect may be the water from rain will not stay in the soil at all and the process of evaporation would immediately set in therefore not replenishing water table. This would lead to wells drying up.
| Since that time, some additional work has been done on veblens, and we understand them a little better. As I said, they are hills of sand or gravel that were deposited by relatively forceful upward flows of groundwater. The upward water flows had to have been with sufficient force to transport fairly coarse materials, in some cases rocks up to 3 or 4 inches in diameter. The only other geologic features that might be mistaken for veblens are glacial hills known as kames. However, kames consist of gravel and sand deposited by streams that flowed into holes in the glacial ice, depositing sediment in the holes.
Regularly, melting snow and rain from the nearby mountain ranges would swell both rivers. This overflow would fill the floodplain, the flat land bordering the banks of the rivers, and when water levels would drop, fine soil, or silt, would be deposited, making the land nutrient rich and good for growing crops. Additionally, the rivers provided a natural irrigation system that was essential to growing crops. During the dry periods, farmers dug irrigation canals that would bring river waters to their crops. Lastly, the rivers provided a means of transportation and a way for farmers to move their harvested crops for trade.
| Soil Erosion | Tree major practices | Rosa Flores 2/18/2013 | Three major practices that expose soil to erosion and how they can be corrected. Soil erosion is the loss of soil caused by particles being carried away by wind or water. Erosion moves the smaller particles first and hence degrade the soil to a coarser, sandier, stonier texture. The major causes of soil erosion are over-cultivation, overgrazing, and deforestation. They are creating problems to create a more sustainable society but it can be corrected.
The bank of the river channel becomes worn away as a result of vertical erosion, due to the processes of hydraulic action which is the forces of flowing water against the river bed and banks caused by the volume of flowing water compared to kinetic energy and attrition which is the material being carried in the river colliding which then breaks the loads down into smaller pieces. Also the velocity of the water in its upper course of the river is slower as more energy is needed in overcoming friction on the uneven channel. however as the river travels more downstream less vertical and more lateral erosion begins to take place, the process of erosion which takes place her is attrition which is the carrying an breaking of the load and also abrasion which is when the material collides and wears away the bed rock, resulting the the river channel becoming more smoother, an also during the mid course you are more likely to come across flood plains. The channel characteristics also change when going downstream as the roughness decreases meaning that features such as potholes cannot be formed as the bed load is too small due to erosion wearing it away and breaking it down in to more smaller and rounder particles. Also as result of traveling downstream the mid-course and lower course tend to be more efficient and also has a smaller wetted perimeter.
The sweet potato industry, although a high value industry, is becoming increasingly competitive. This underlines the importance of efficiency in minimising the loss of valuable soil. Large amounts of rainfall can result in the loss of soil on cultivated farmland. The loss of soil does not just affect the farmers it also affects the community The aim of the project was to increase awareness of soil health and to develop the best soil management practices for the Cudgen plateau. Figure [ 2 ] Water Way On the Cudgen Plateau, three adjoining landholders implemented soil conservation measures and strategies.
This is accomplished through lowering or setting back natural or constructed levees currently blocking the flow of water out of the main channel. Doing so increases the cross sectional area wetted perimeter of flow, thus reducing velocity and momentum (Rakovan and Renwick,
In the U.S., the storm drain system (it is connected to the drain of gutters, driveways, and streets) is usually separated from the sanitary sewer drain system (connected to toilet and sink, for example) which deals with pollutants. Thus, storm water flows directly into water streams. Even if the storm water drain system is connected to treatment plants, flooding causes storm water overflow. Impervious surfaces reduce the amount of water which seeps into the ground and
In this process acidic water flows over and through the ground and affects varieties of plants and animals. The water has become too acidic, and this creates a problem to the environment because all living things depend on water. Dry deposition is also a form of acid deposition, but refers to acidic gases and particles. “Half the acidity in the atmosphere falls back to earth through dry deposition”. The wind blows these acidic gases into building, cars, homes and trees.
A large problem that comes with earthquakes is landslides. A landslide is a geological phenomenon which includes a wide range of ground movement, such as rockfalls, deep failure of slopes and shallow debris flows. A landslide can occur in offshore, coastal and onshore environments. Along with landslides, earthquakes can cause fires by damaging electrical power or gas lines. In the event of water mains rupturing and a loss of pressure, it may also become difficult to stop the spread of a fire once it has started.