This presentation is required about Soil forming factors. This is a presentation for soil science. Thanks.. www.leadmoneymedia.com please follow me here : https://www.behance.net/rubel570 https://plus.google.com/u/0/+MdRubelHossain570 https://www.facebook.com/rubel570

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2. This is Md Rubel Mia
speaking…
ID# 12309056
Program: BSAg
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4. The primarily responsible for the
development of soil is called soil-
forming factors.
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Topography
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6. Both plant and animal,
play an important role in
the development and
composition of soil is
called organism.
Organisms add organic
matter, aid
decomposition,
weathering and nutrient
cycling.
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8. Soil development is affected by both the type and number
of organisms that live in and on the soil.
Plants influence the amount of organic matter buildup in the
soil.
For example, soil developed under grassland vegetation has
organic matter incorporated into the rooting zone, while in
forest soils organic matter accumulates on the surface.
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Grassland soil Pine forest soil Oak forest soil
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This is a picture of an Amoeba
trying to engulf a fungal spore
The long rods in this picture
are Bacteria that live in the
soil.
This is a Ciliate, a beneficial
soil organism.
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This is a close-up picture
of an Ant.
This isn't an ant, but a
wood-eating Termite.
This multi-legged insect is a
Centipede.
This insect has even more legs
than a centipede, and is called
a Millipede.
This is a picture of a small
worm called a Flatworm, due
to its shape.
This is a common
Earthworm.
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