SOIL POLLUTION & IT’S REMEDIES Environmental Science CONTENTS • What is Soil..? • What is soil pollution ? • How is it caused ? • Types of soil pollution . • What are the effects of soil pollution ? • How can we control soil pollution ? What is Soil..?? • Soil is the thin layer of organic and inorganic materials that covers the Earth ’s rocky surface. • Soil is composed of particles of broken rock that have been altered by chemical and mechanical processes that include weathering and erosion
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agriculture had destroyed the landscape. The grazing of animals on the slopes made it impossible for nature to grow and rainfalls no longer seeked into the Earth but instead washed down the hillsides taking the soil along with it which annihilated its fertility. The light unprotected soil is also swept into the winds causing dust storms over China’s cities and its borders. Also in Jordan and Ethiopia deserts are advancing and water is becoming more scarce. Centuries of poor
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grow sustainable food to avoid weed‚ disease and pest problems‚ get nitrogen from natural sources like green manure and compost‚ practice soil conservation‚ minimize soil erosion and eliminate or limit the contamination of water with agricultural chemicals. The strategies they use to control pests are not harmful to the farmer‚ the consumer or the land and soil structure. In America‚ Ohio State’s dining services programs are actively committed to helping the earth. Initiatives such as local purchasing
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businesses‚ and public services. The groups of farmers who were fortunate to acquire their land in the Northern and Central part of the Midwest were successful because the soil and climate was more favorable for the farming. The farmers who acquired their land on the Great Plains and further west often went bankrupt. This region had poor soil‚ a harsh climate‚ and lack of water supply. The railroad greatly benefited from this because they often bought the land from the bankrupt
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explain the concept of soil carbon sequestration; which is basically the transfer of atmospheric CO2 into long-lived pools and storing it securely so that it is not immediately reemitted. The rate of soil carbon sequestration‚ however‚ depends on various factors- such as soil texture and structure‚ rainfall‚ temperature‚ farming systems‚ and soil management. Scientists have spent an incessant amount of time trying to determine strategies in order to create an influx in the soil carbon pools. Certain
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has resulted in the drastic rise in temperature in recent times. The depletion of forest cover has resulted in large-scale erosion‚ which in turn‚ is responsible for loss of nutrients in the soil. This has caused the soil to become barren‚ and in some cases sterile. Without forests to hold them‚ the top soil of the land is easily blown away‚ causing further damage to the environment. Pollution too is eating away into the environment. Here we are talking about air pollution‚ where toxic substances
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the slope •Loss or absence of vertical vegetative structure‚ soil nutrients‚ and soil structure(e.g. after a wildfire) •Erosion of the toe of a slope by rivers or ocean waves •Weakening of a slope through saturation by snowmelt‚ glaciers melting‚ or heavy rains •Earthquakes adding loads to barely stable slope .Earthquake -caused liquefaction destroying slopes. •Liquefaction is a phenomenon in which the strength and stiffness of a soil is reduced by earthquake shaking or other rapid loading. Liquefaction
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components is critical to understanding this frequent outcome. Drylands are characterized by water scarcity stemming from the conjunction of low water offer (i.e.‚ precipitation) and high water demand (i.e.‚ water lost to the atmosphere as water vapor from soil via evaporation and from plants through transpiration). Drylands ’ precipitation is highly variable through the year and occurs in infrequent‚ discrete‚ and largely unpredictable events. In turn‚ the high evaporative demand of the atmosphere‚ resulting
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AS Applied Science Luke O’Reilly Aim/background- Test soil from an area that previously had heavy industry on it to check for contaminants. Procedure- I will first visit a site that has previously has heavy industry located on it. Using protective clothing‚ goggles and gloves I will extract several samples of the soil from the site and then take several other samples from different points on the site. This ensures variety of soil to ensure that all the site is safe‚ not just a small area where you
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rock outcrops‚ and wells. ➢ Get the information from the local authority whether the proposed site comes under the preservation area or part of it. ➢ Investigate subsoil. Use trial pit and boring to determine the soil quality and water table level. ➢ Consider flood potential‚ possibilities for drainage of water table‚ filling ponds and diversion of rivers and streams. ➢ Consult local utilities provider to get to know about the underground
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