Summary: An Introduction To Physical Geography And The Environment | 9780273740698 | Joseph Holden
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Read the summary and the most important questions on An Introduction to Physical Geography and the Environment | 9780273740698 | Joseph Holden
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1 Soil in the environment
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What are soil phyiscal properties
Properties who you can see, feel, taste and smell -
What can you see by observing soil colour?
You can estimate organic matter content, iron content, soil drainage and soil aeration. -
What is the influence of soil physical properties?
It shows how soils function in an ecosystem ad how they can be managed -
1.1 Physical properties of soil - Soil colour
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What kind of colour has a soil with a high amount of organic matter
Black or dark brown -
Why is colour used to determine soil?
To determine the drianage characteristics
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What kind of colour has well drained soil where iron is oxidezed
Reddish or yellowish colour -
What kind of colour has water logged soils, where the iron is reduced
blue colour of the soil -
What are the three catagories of the Musell colour chart?
Hue: dominant colour (redness or yellowness), Value: degree of darkness or lightness, Chroma: purity or strength of the colour. -
1.1.2 Soil texture
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What is fine earth?
Mineral particles in the soil which are greater than boulders (600mm) and stones (greater than 2 mm) -
What is Cation exchange capacity
water holding capacity
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