Experiment 3: Soil pH measurement Introduction Aims The aims of the experiment were to determine the pH of a variety of soils which included sedentary‚ 3:2‚ sand‚ organic matter with the means of a pH meter at various soil water ratios and with or without calcium chloride. Method and Materials Samples of sedentary soil‚ 3:2 soil‚ sand‚ organic matter and compost‚ 100ml vials(x12)‚ bottle of distilled water‚ analytical balance‚ pH meter‚ 2 buffer solution of known pH‚ 0.25M calcium
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SHEET-1 SOILS IN INDIA 1. Name two states in India where Regur soil is found. In what way Regur soil help agriculture? 2. Name the process by which Laterite soil is formed. What climatic conditions are responsible for its formation?Mention 5 main characteristics of Laterite siol. 3. Name two important agents of soil erosion. For each‚ state two methods of controlling the erosion caused. 4. What is soil conservation? How does reforestation help in soil conservation
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Mountains‚ is in cattle pastures.” We examined the land use capacity and made an evaluation the class of the soil. Honestly‚ this was a very interesting project for me because I had never done an experiment like such. Having carried out the measurement of the site parameters in the field I feel that it can be done by ordinary farmers. The farmers have much more knowledge about how their farms and soil work. I had no special training nevertheless knowledge of how farms developed good crops; if I can do
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ways. a. Raindrop Splash and Sheet Erosion. The first step in the erosion process begins as raindrops impact the soil surface. Raindrops typically fall with a velocity of 20-30 feet per second. The energy of these impacts are sufficient to displace soil particles as high as two feet vertically. In addition‚ the impact of a rainfall on a bare soil can compact the upper layer of soil‚ creating a hard crust that inhibits plant establishment. Sheet erosion occurs as runoff travels over the ground‚
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CHAPTER 8 Soil Compaction Soil compaction is one of the most critical components in the construction of roads‚ airfields‚ embankments‚ and foundations. The durability and stability of a structure are related to the achievement of proper soil compaction. Structural failure of roads and airfields and the damage caused by foundation settlement can often be traced back to the failure to achieve proper soil compaction. Compaction is the process of mechanically densifying a soil. Densification
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Ways to Prevent Soil Erosion Soil Erosion Although many areas on earth can sustain plant growth‚ only about eight percent of the earth’s surface is covered with good topsoil. While it takes nature hundreds of years to make a few centimeters of topsoil‚ erosion can easily remove it. Without topsoil‚ people cannot raise crops for food.People know that without good soil they cannot raise agricultural crops. They also know from experience that wind and water can easily remove topsoil. Because of
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OSH 379 Soil Safety / Trenching Safety Quiz Week 5 1. Define “trench.” a. A narrow excavation (in relation to its length) made below the surface of the ground. In general‚ the depth is greater than the width‚ but the width of a trench (measured at the bottom) is not greater than 15 feet (4.6 m). If forms or other structures are installed or constructed in an excavation so as to reduce the dimension measured from the forms or structure to the side of the excavation to 15 feet (4.6 m) or less
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Chapter 11 : Soil: The Foundation for Land Ecosystem Chapter 11 Brooke Settles Chapter 11 discusses three major practices that expose soil erosion and how they can be corrected . The three are Over- cultivation‚ Overgrazing and Deforestation. These are each all major problems in creating an unsustainable society. The good thing is that each of these causes of erosion can be corrected to create a more sustainable society. First there is Overcultivation which is the practice of repeatedly
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Soil conservation includes all such measures which protect the soil from erosion and restore its fertility. These measures are of two types-(a) small measures to check soil erosion at local or even individual level‚ and (b) large measures at government level involving larger area and heavy investment. (a) Small Measures-These include afforestation‚ regularised land strip cultivation or contour farming or terrace farming in hilly areas‚ use of stubble mulch system‚ increasing cohesiveness of the
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What Is Soil Pollution? [pic] What Is Soil Pollution? Soil pollution results from the build up of contaminants‚ toxic compounds‚ radioactive materials‚ salts‚ chemicals and cancer-causing agents. The most common soil pollutants are hydrocarbons‚ heavy metals (cadmium‚ lead‚ chromium‚ copper‚ zinc‚ mercury and arsenic)‚ herbicides‚ pesticides‚ oils‚ tars‚ PCBs and dioxins. Until the 1970s‚ there was little talk of soil pollution and its devastating effects. In the 1980s‚ the U.S. Superfund was
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