Abiotic factors

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Abiotic factors
non-living or physical and chemical factors.
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Solar energy input
affected by latitude, season, cloud cover and changes in earths orbit. Light is vital to plants its is the energy for photosynthesis. Light also has a role in initiating flowering and in some species and in some species required for seed germination.
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Climate
includes rainfall, wind exposure and temp.
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Topography
includes altitude (which affects climate), slope, aspect (which direction the land faces) and drainage.
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Oxygen concentration
Particularly important in aquatic systems. For example, fast-flowing streams are often better oxygenated than stagnant pools.
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Edaphic
factors are connected with the soil and include soil pH and mineral ion concentration. Underlying geology of an area can have a significant effect on plant distribution. Soil texture. Sandy soils +clay.
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Pollution
This can be of the air, water or land.
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Catastrophes
are infrequent events that disturb conditions considerably. Earthquakes, floods, volcanic eruptions fires.
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Other cards in this set

Card 2

Front

affected by latitude, season, cloud cover and changes in earths orbit. Light is vital to plants its is the energy for photosynthesis. Light also has a role in initiating flowering and in some species and in some species required for seed germination.

Back

Solar energy input

Card 3

Front

includes rainfall, wind exposure and temp.

Back

Preview of the back of card 3

Card 4

Front

includes altitude (which affects climate), slope, aspect (which direction the land faces) and drainage.

Back

Preview of the back of card 4

Card 5

Front

Particularly important in aquatic systems. For example, fast-flowing streams are often better oxygenated than stagnant pools.

Back

Preview of the back of card 5
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