Review Of Literature : Rain Wash

Soil particles such as silt, clay, and sand are known as sediments and are the most significant pollutant to come from forested areas.

7 The concept of the soil conservation way to limit the plowing, and to stop the tractors to pick up and release dust into the sky If the act was not put into place the land would continue to get worse, but only until the sky came.

Soil turnover - as soil is moved around by digging animals, organic matter is mixed through which distributes nutrients throughout the soil

Erosion is a global problem, as we have already seen (umich.edu). Globally, topsoil is eroding faster than it can be replaced over 1/3 of the world's croplands (umich.edu). In the U.S, the loss of topsoil has been estimated to cost $125B per year (umich.edu). As you might imagine, this is a very difficult calculation to perform, since topsoil production rates are so slow, the lost topsoil is essentially irreplaceable (american.edu). This has been increasing within the past for years and corporations are trying to lessen the amount of erosion but it does not seem to be working

Erosion is mainly caused by two main natural forces: water and wind. In Southwest Louisiana, erosion by water is one of the main issues we have as a coastal state. There are different factors that must be considered when looking at water erosion

A cause of the erosion in the Grand Canyon and Colorado River is when there is flash flooding the effect of this is the water carries the sediment of from the Colorado River. Another cause is when the erosion if water happens when there were mountains when it keeps on raining the effect of this is the mountain will erode away until there is flat land. The animals or people who live near the Grand Canyon is a cause because of what we are doing because we could change of how erosion goes by digging up the dirt the effect s the erosion might speed up or something else. The cause of soil erosion is either erosion by wind and erosion by water. The effects of soil erosion is the ground is losing nutrients, the soil quality, structure, stability, the texture is also affected, which can hold the soil

1 The U.S. Bureau of Land Management has stepped in to provide restorative practices upon 500,000 acres of heavily degraded public grasslands. This land is suffering from severe soil erosion as well as degradation due to overgrazing. The suppression of natural fires has caused shrubs and invasive weeds to encroach upon the grasslands. A full scale assessment will take place on this land before restoration efforts begin. The first thing that would need to be assessed is the soil, for it is eroding and holding little nutrient value. Samples would be taken of this soil from various parts of the grasslands including the eroded gullies. Each soil sample would be taken from at least 1 foot below the surface, to test for carbon richness below the topsoil. These would then be tested for texture, density, water retention, and chemical composition. Typically, powerful, healthy soil will contain amounts of both Nitrogen and Phosphorous, which are essential nutrients in sustainable plant growth. These samples would also be tested for any build-up of salts, something known as soil salinization. Unhealthy, salinized soil is created over years of over-hydrating and deep plowing. Excess water will suffocate root systems of once-healthy crops, and salinized soils will reduce crop output up to 20% (Withgott &Brennan, 2011). The next assessment would be in the shrubs and invasive weed species on the land. Knowing the volume and location of these plants gives way to a better understanding of

I decided to write my paper on Poe’s tales of Terror film and Poe’s The Fall of The House of Usher. I’ve have always found Poe’s work interesting. In this paper I will identify the author’s and film intentions. As well as identifying University themes, conflicts and climaxes in both Poe’s Tales of Terror and The Fall of The House of Usher.

#18. The relationship between the diversity of plant root systems and erosion is that the roots protect the soil from erosion and the thinner the soil is the more perennial the roots become.

When it was time to pick what High school I'm going me and my mom got in argument. I want to go to Hayward high and she wants me to go to Mt.eden. Well the problem here is that Hayward high is far and Mt.eden is closer to my house. But my mom doesn't realize that Hayward high is a better High school. Is better at teaching and learning as a student. Mt.eden can be closer but later on it's not going to care if it was close or far. Is going to care what I learn and how was I teach. That what my mom really doesn't get. She told me “ no matter what school you go if you want to learn you learn” She said in a mad and happy voice. But what my mom told me that really didn't convince me of changing my mind to go to Mt.eden.

It was caused by cutting trees from forests and as well as overgrazing. Soil erosion can lead to a deterioration of the landscape. Burning and cutting forests and overgrazing are factors that connect with a deterioration of soil quality. Some soil erosion was widespread in many parts of North America. People cut trees for heat and building settlements.

Every year the Wildlife Bureau of the DNR purchases land for public use and wildlife habitats. The restoration of Iowa’s prairie land is considered important because it can restore the natural ecosystem, benefit water quality, and reduces soil erosion caused by runoff. Other farming practices such as having buffer strips near streams and cover crops have helped manage the soil erosion in Iowa, but since 1850 we have lost nearly 14 inches in topsoil depth and growing.

“Erosion occurs when the soil lacks protective vegetative cover”. (Pimentel, Kounang, 1998) “Soil erosion reduces the productivity of the land by loss of water, soil, organic matter, nutrients, biota, and depth of soil.” (Pimentel, Kounang, 1998) With no conservation methods in place in certain places like: no contour farming, no cover crop, no terraces, no water ways, and tillage on steep hills is asking for a loss of productivity from the land. The effects on the land that non-conservation methods have is horrible. “Its effects are pervasive, and its damages are long lasting. (Pimentel and others 1995a)” (Pimentel, Kounang, 1998) Soil loss is a bigger factor then most people think. For an example an comparison of how much soil is actually lost in certain environments: “On sloping agricultural land under tropical rainfall, as much as 400t/ha/yr of soil is lost (Pimentel unpublished report,1990).”(Pimentel, Kounang, 1998) “Under arid conditions with relatively strong winds, as much as 5600t/ha/yr of soil has been reported lost (Gupta and Raina 1996).” (Pimentel, Kounang, 1998) Soil loss is a huge factor when conservation practices are not put into place. “According to some investigators, approximately 75 billion tons a fertile soil are lost annually from the world’s agricultural systems (Myers 1993).” (Pimentel, Kounang, 1998) Soil loss is a huge factor and many different things can be done to help slow it,

Erosion removes the surface soils, containing most of the organic matter, plant nutrients, and fine soil particles, which help to retain water and nutrients in the root zone where they are available to plants. Thus it affects the productivity of plants. The remaining, the subsoil, tends to be less fertile, less absorbent and less able to retain pesticides, fertilizers, and other plant nutrients. There are over 17,000 soil types recognized worldwide. They vary widely in structure, erodibility, fertility, and ability to produce crops. A generalized soil profile for a humid, temperate climate is showed. When the natural vegetation is cleared for agriculture, soils become exposed to erosion and loss of soil fertility. The removal of the above-ground natural

Significantly, desertification also cause soil erosion, which means soil surface is worn by wind and water. Desertification makes soil easy to erode by water or wind, as soil is exposed and soil structure is instable without forest. LaI R(2003) says that ““Land area globally affected by erosion is 1094 million ha (Mha) by water erosion, of which 751 Mha is severely affected, and 549 Mha by wind erosion, of which 296 Mha is severely affected.” To control soil erosion, an obvious way is virescence, enlarging forest cover, which can protect the soil far from exposing to strong wind. Also, the roots of plants under ground play a role as a framework, as they are obstructions to soil movement,