"Soil" Essays and Research Papers

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    sea level) Soil One of the earths most important resources because most plants grow in it. The pH‚ humus content‚ texture‚ water retention capacity and air content of the soil can have an effect on the ecosystem. - Soil pH + soil pH is the acidity or alkalinity that is present in soil. + the best pH for soil to grow in is between 6‚0 and 7‚5 pH. + some plants will only grow in specific pH levels. + the pH levels are determined by the type of rock the soil is made from.

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    Application on Growth‚ Yield and Quality of Tomatoes in North Kordofan (sandy soil) western Sudan b. Author(s): Kh. H. M. Ibrahim O.A.S. Fadni c. Journal: Greener Journal of Agricultural Sciences Vol. 3‚ April 2013 d. Source: http://www.gjournals.org/GJAS/GJAS%20Pdf/2013/April/Ibrahim%20and%20Fadni.pdf II. Main Idea This article’s objective was to examine the effect physical‚ chemical and nutritional properties of the soil and increasing crops yield. Five treatments were used in this experiment

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    eventually wear down the rock. 12.2 Soils 1-5 The difference between residual soil and transported soil is that residual is a soil who’s parent is bedrock but transported soil is any soil that is formed from transported materials. A horizon- usually fine particles of weathered rock B Horizon- Clay‚ Iron oxides‚ and dissolved minerals that came from the A-HorizonC Horizon- Partially weathered parent materials. 3. Rock materials that are found in soil are sand‚ silt‚ and clay.

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    Air Pollution

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    EARTH The earth is 4.5 billion years old. The Big Bang theory says that there was an explosion caused by the crash of matter which created our Solar System. Millions of years ago‚ during the Paleozoic era‚ the seven continents formed one single super-continent‚ from which they later detached driven by endogenous forces. Mankind appeared on Earth 30000 years ago. According to Darwin organisms which adapt the best to the environment they live in‚ survive the longest. Mankind become the dominant

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    Fistral Sea Essay

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    at or near both the sites. Hence‚ completing the Non-householder validation document with the Cornwall council‚ in accordance with the Part 2A‚ Environment Protection Act 1990 would help secure planning for the hotels. Geology of the site – rock/soil types‚ mineral veins‚ faults‚ folds‚ age of the rocks‚

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    Desertification in Africa

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    pastoral nomadism. This is an issue because the cultivation of arid and semi-arid lands in regions like the Sahelian region of Africa is helped by the fact that the soils are usually rich in nutrients since‚ unlike wetter areas‚ the limited rainfall has historically washed only a smaller proportion of nutrients from the top soil to the lower soil levels. There are also long hours of sunshine to provide the raw energy for the growth of plants. However‚ the rainfall is sparse‚ leading to inconsistent crop

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    Sustainable and Unsustainable development Sustainable Development Concept Sustainable development is a pattern of social and structured economic transformations (i.e. development) which optimizes the economic and societal benefits available in the present‚ without jeopardizing the likely potential for similar benefits in the future. A primary goal of sustainable development is to achieve a reasonable and equitably distributed level of economic well-being that can be perpetuated continually for

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    Tropical Grasslands

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    They cover almost half the surface of Africa*(about % million sq. miles generally central Africa) and large areas of Australia‚ South America and India. REGIONAL CLIMATE The climate is warm and hot Rainfall is about 50.8 to 127 cm annually. SOIL ORDERS The soil is porous with rapid water drainage. Contains a thin layer of humus. DORMINANT GROWTH FORMS Rhodes grass and red oat grass‚ in East Africa Star grasses and lemon grass is common. Deciduous trees and shrubs are scattered across the open landscape

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    it may actually cause buildup within the soil. Eventually‚ the soil hardens and looses its moisture. The soil will make its way to other plants‚ which will cause them to exterminate as well. Additionally‚ the pesticides can cause soil erosion which causes the loss of valuable top soil (Billings 40). This is not the end of the effects of pesticides on the environment‚ nevertheless. Some pesticides can pollute water‚ and as chemicals travel through the soil‚ the ultimately come in contact with groundwater

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    Three major causes of soil erosion There are three causes of soil erosion over cultivation‚ overgrazing‚ and deforestation. All of these causes can be corrected in different ways. Over cultivation is when the land is repeatedly tiling and producing crops faster than the soil can restore resulting in a decrease in the soil value and productivity. One of the ways that over cultivation can be corrected is by a technique called no-till agriculture. No-till agriculture is a procedure where chemicals

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