Compaction Essay

May 2nd, 2015
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Aggregates- are soil particles which bind to each other more strongly than to adjacent particles. Bulk density- a term used to describe the calculation of the dry weight of soil, divided by its volume. Porosity- is the percentage of air spaces in the soil. The greater the soil porosity, the greater the: aeration, water storage and drainage of the soil.

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Compaction EssayYear 12 Earth Assessment task 3 Soil compactionhttp://eusoils.jrc.ec.europa.eu/library/themes/compaction/- this diagram shows the layout of a compacted soil. As you can see the very top is compacted but the bottom has not been affected yet.www.eoearth.org this diagram shows the critical depth for harmful soil compaction in a typical agricultural soil. (Source: Geological Survey of Lower Saxony)By Emily PikeContents......* Background information.....................* Glossary* What is soil compaction?* What causes soil compaction?* Problems associated with soil compaction.* Infiltration experiment...................* Aim, hypothesis, equipment, method.* Results * Discussion and variables* Conclusion.* Germination experiment/vegetation cover........................ * Aim, hypothesis, equipment, method.* Results * Discussion and variables* Conclusion.* Management strategies...........................* Rural/Agricultural* Urban* References.GlossaryAggregates- are soil particles which bind to each other more strongly than to adjacent particles. Bulk density- a term used to describe the calculation of the dry weight of soil, divided by its volume. Porosity- is the percentage of air spaces in the soil. The greater the soil porosity, the greater the: aeration, water storage and drainage of the soil. Tillage- the preparation of land for growing crops and involves the turning over of topsoil using large machinery. Pore space- spaces

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