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Nature and properties of soils
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Soil isn’t important right? I mean, it’s just dirt. Well I’d hate to soil your fun, but there's something you need to know. Soil is very important. Time to unearth some lost knowledge, and puns.
Soil composition is a two way, dirt road. It gives what it takes and vice versa.
The soil of an area depends on climate, plant life, animal life, and human interference. For example, the soil of a city, buried under all the concrete, is different from the soil in the Scottish Highlands. While in the city there are only small animals and humans, the Scottish Highlands are populated by wolves, Highland cattle, and humans. In the city, plant life is scarce. This can affect the soil type as well. A plant is a living thing, made up of nutrients
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A fjord by definition is a U-shaped inlet, formed by a glacier. Since Iceland is covered in glaciers, there’s quite a few. Typically a fjord is near a mountain, where the glacier slid from. From the article on nature.com: ‘Fjords soak up a surprising amount of carbon’, The article shows soil composition and the main ingredient. Carbon. Though the article on nature.com doesn’t provide very good coverage the article on mnn.com ‘Fjords hoard more carbon than we thought’ provides more coverage. Obviously plants use CO2 to make their food. So when a plant dies, where does the leftover CO2 when the plant dies? Does it just disappear? Well, in fact it goes back to the air. Unless its buried in soil or lost in the river. Remember how soil gives what it takes? Well what it gives, is what it took. When the plant is buried, the soil traps the CO2 it stays in the soil. Not only is that a factor in the amount of CO2, but the fact fjords are near mineral rich rivers changes things. It nearly doubles the amount of carbon in the soil of fjords. After all, According to the article on mnn.com called ‘Fjords hoard more carbon than we thought’: “ They sequester 18 million metric tons of carbon every year… That’s 11 percent of the total carbon absorbed…”
18,000,000 is quite the number. 18 metric tons is 39,683,207,193 pounds. A car is 4,079 pounds. The amount of carbon that fjords use worldwide would balance with about 9,728,636. That’s a lot. But what else is in the soil of the fjords
Permafrost contains a great quantity of carbon, when it melts it releases the carbon in the form of carbon dioxide and methane, potent greenh...
Mississippi has a variety of different soils .The three general soils are 1) the river flood plain, known as the Delta, 2) a loess region, or bands of soils formed in windblown material that adjoins the Delta, and 3) Coastal Plain. The Mississippi Delta is better for growing row crop, while the loess and Coastal Plain region are better for animal production and forestry. The loess and Coastal Plain regions are divided based on similar soils, geology, climate, water resources, and land use called Major Land Resource Areas. The Mississippi Delta’s soil comes from sediments left by flooding various rivers in the region, rather than being a typical Delta formed by the mouth of a river. In the Delta most of the land is farmed, with three-fourths of the cropland to the north. Controlling surface water and drainage are major soil management issues. In the Delta soils are naturally diverse because of their alluvial origin. Particle sizes within the sediment decrease as distance from the originating stream increase. Another factor in Delta soil formation us surface water movement over time, because soils that formed under standing water have different properties than soils formed under moving water. Soils with large amounts of clay particles have unique features. When the soil is dry, small round aggregates form at the surface that look like shotgun buckshot, which is where the popular name for Delta clay soils “buckshot” came from. Soils with large clay content have very slow water filtration rates; this has led to significant aquaculture and rice production in the region. When floodwaters receded in the Delta, strong winds blew some of the dry sediment left by flooded river to the adjacent uplands to form the loess areas. Because of eas...
resources are limited, as most of the soil is leached and stony. Neither the soil nor
...at over planting can do to the land, the majority of the United States just moved on and continued to treat the land just as poorly as before. John Pursell views chemical fertilizer as a thing that turns soil into “chemical wasteland” and mentions that today’s soil is often not good enough to resist heavy rainfalls.
The rich dark soil of Texas, Oklahoma, New Mexico, Kansas, and Colorado—an area also known as the Great Plains—formed from thousands of years of soil forming factors in action (Surviving the Dust Bowl). From the beginning of human populations living in the area, the soils, for the most part, remained untouched and unscathed by the plow. Thick prairie grasses covered the area and held the soils in the ground even during the periodic times of drought. This area of land was suitable for grazing practices and it was in this area that the large cattle ranches flourished. Little did the newly arrived farmers realize that this seemingly plentiful land followed a pattern of several years of rain followed by several years of drought and high winds.
As we have observed throughout the centuries, colonialism has immensely shaped the majority of countries of modern society. In the essay “The Impact of Colonization and Western Assimilation on Health and Wellbeing of Canadian Aboriginal People”, Cathy MacDonald & Audrey Steenbeek developed significant points that reflect as connections to the essay “Virgin Soils Revisited” emphasizing the devastating impact colonialism has had on the wellbeing and health initiatives imposed on the Native Americans and the Aboriginal people of Canada to this day. Both indigenous populations have endured the hardships of poor health, racial issues such as oppression, and cultural assimilations due to the long-lasting effects of colonialism.
In well-drained soils, organic material, which, of course, contains nitrogen, "may decompose faster than it is replenished (Dolman and Bud, 1967)" (Gambrell, et al, 321). So, in order to s...
When people burn fossil fuels to accumulate and produce energy a substance called carbon is produced. Carbon is released into the air in a form known as carbon dioxide. Carbon moves throughout the biosphere on the planet as it is recycled and reused. Carbon exists in the earth’s atmosphere in two common forms which are methane and carbon monoxide. These gases absorb and retain heat in a process known as the greenhouse effect. The Planets natural greenhouse effect makes life possible by regulating our temperature. It turns out that adding too much to the greenhouse effect can have horrible consequences on the environment. Each year, five and a half billion tons of carbon is released by burning fossil fuels and of that three billion tons enters the atmosphere. The remaining carbon usually gets absorbed by the oceans.
The differences seen in the soil may be due to addition of carbon/ nitrogen which can change and alter the C:N ratio. The greater C:N ratio the more extracellular polymers are released which help hold the aggregates together and better its stability. The lower the C:N ratio the worse the aggregate stability and the faster the aggregate will crumble away as can be seen in both a slaking test and the alfalfa treatment.
Peat bogs are a very important carbon store. By creating new bogs, or enhancing existing ones, carbon can be sequestered. Hence amount of carbon from atmosphere can be reduced.
They also have shorter life. "When we live under the same sky in Canada, why are the ages so different?" (Suh, p. 1). Soil is a very little known resource. Soil directly or indirectly
Soil degradation is a serious global environmental problem and may be exacerbated by climate change. It encompasses physical, chemical and biological deterioration.
The soil abiotic factor that I used was rain. For example, if rain flooded the box, the plants can “drown” and die. Rain can also indirectly affect a garden organism like a ladybug. This can happen because some ladybugs can eat plants, so when rain affects this, the population of ladybugs are subjected to decreasing. Rain can also indirectly affect a pond organism like a water hyacinth. When rain floods the soil box
Humans and animals breathe out Carbon Dioxide, often referred to as the greenhouse gas, as a waste product. Plants take in this CO2 and use it to make food. This is called photosynthesis. During this process oxygen is released which is then breathed in by humans and animals. This procedure is repeated over and over and a natural balance is obtained. However this natural balance is disrupted by human activity. People of the world are putting more than 5.5 billion tons of CO2 into the atmosphere every year. 75% of this is caused from the burning of fossil fuels. These fuels are burnt all the time to run factories, power plants and vehicles. The main sources of CO2 emissions are electric utilities, residential buildings, industry and transportation. The other 25% is induced by the destruction of the world's forests. The reason for this is that there are less trees and plants to take in the CO2 but there is just as many, if not more, humans and animals to breathe it out.
Soil is the most important non-renewable resource on any farm. Healthy soil is key to a good