| Topic: |
Science > Physics |
| User: |
"" |
| Date: |
15 Feb 2006 01:51:41 AM |
| Object: |
climate and organic matter |
Why do temperate zones contain more water, organic matter and fertile
soils than arid zones?
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| User: "tadchem" |
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| Title: Re: climate and organic matter |
15 Feb 2006 03:20:28 AM |
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wrote:
Why do temperate zones contain more water, organic matter and fertile
soils than arid zones?
"Arid" means 'lacking in water or rainfall.'
http://www.onelook.com/?w=arid&ls=a
Without water, there can be no photosynthesis or chemosynthesis by life
as we know it, so there will be no organic matter produced.
A major part of soil fertility is humus, decaying organic matter to
fertilize the next generation of plant life. It all comes down to the
lack of available water - aridity.
I suspect you have asked a question that is not really the one you have
on your mind, but I am a scientist, not a mind reader. If you need a
mind reader to help you get your own thoughts written down, get
married.
Tom Davidson
Richmond, VA
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| User: "Orion" |
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| Title: Re: climate and organic matter |
15 Feb 2006 04:20:39 AM |
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tadchem wrote:
Without water, there can be no photosynthesis or chemosynthesis by life
as we know it, so there will be no organic matter produced.
A major part of soil fertility is humus, decaying organic matter to
fertilize the next generation of plant life. It all comes down to the
lack of available water - aridity.
I suspect you have asked a question that is not really the one you have
on your mind, but I am a scientist, not a mind reader. If you need a
mind reader to help you get your own thoughts written down, get
married.
Tom Davidson
Richmond, VA
Thanks.
Clean water and carbon are vital for modern civilization. This explains
why most of the world's population and economic activity takes place in
the temperate zone. Some have predicted that clean water will become
the "next oil", making Canada, with this resource in abundance,
possibly the richest country in the world.
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| User: "Weatherlawyer" |
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| Title: Re: climate and organic matter |
15 Feb 2006 06:16:04 AM |
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Orion wrote:
tadchem wrote:
Without water, there can be no photosynthesis or chemosynthesis by life
as we know it, so there will be no organic matter produced.
A major part of soil fertility is humus, decaying organic matter to
fertilize the next generation of plant life. It all comes down to the
lack of available water - aridity.
Clean water and carbon are vital for modern civilization. This explains
why most of the world's population and economic activity takes place in
the temperate zone. Some have predicted that clean water will become
the "next oil", making Canada, with this resource in abundance,
possibly the richest country in the world.
Look up information about the Sahel and see what you can find out about
how fertile the Sahara might once have been. Apparently Nasa satellite
photography reveal that there is plenty of scope for agriculture under
all that sand.
Also check out work being done in the Atacama desert.
But it is not just water that is required. When the Asan dam blocked
the Nile and stopped its periodic flooding, the quality of the soil in
the Egyptian nile Valley deteriorated so that for the first time in
human history the farmers there are now dependent fertilisers. And not
just fertilisers but on western fertilisers.
Any one can tell you the draw-backs to that stuff.
Such might also be true of lands locked by snow.
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| User: "Orion" |
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| Title: Re: climate and organic matter |
15 Feb 2006 06:36:54 AM |
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Weatherlawyer wrote:
Look up information about the Sahel and see what you can find out about
how fertile the Sahara might once have been. Apparently Nasa satellite
photography reveal that there is plenty of scope for agriculture under
all that sand.
Also check out work being done in the Atacama desert.
But it is not just water that is required. When the Asan dam blocked
the Nile and stopped its periodic flooding, the quality of the soil in
the Egyptian nile Valley deteriorated so that for the first time in
human history the farmers there are now dependent fertilisers. And not
just fertilisers but on western fertilisers.
Any one can tell you the draw-backs to that stuff.
Such might also be true of lands locked by snow.
Black chernozem is the best kind of soil. The mystery is why temperate
soils are typically the richest in carbon.
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