2006-10-23 17:09:49 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
It is because volcanic soils are very fertile when they have had the chance to weather and start to break down and release their nutrients.
Apart from water and carbon dioxide, plants need three essential nutrients to grow: nitrogen, potassium and phosphorous. They also need some iron to create chlorophyll, which primary function is to absorb sunlight for photosynthesis to occur within the plant. A process which is possible in the presence of radiant energy (light) where carbon dioxide and water are converted into oxygen and organic materials that can be used within the plant.
Furthermore, volcanic soil can also supply in small quantities a number of trace elements that may be scarce, but are very important and necessary to allow plants to make the right proteins and other molecules necessary for life
2006-10-23 17:15:12 · answer #1 · answered by Anonymous · 10⤊ 0⤋
Volcanic Soil
2016-10-01 02:32:17 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Volcanic soil is quite fertile, namely because it the rocks dissolved contain a rich array of the necessary micro nutrients and trace elements essential for plant growth that most other soils lose over time. The soils contain high concentrations of iron, silicon, boron, sulfur, magnesium, manganese, copper, phosphor, potassium (all of which are essential micro nutrients to plant growth) but the soil itself is often poor in nitrogen and carbon which is most essential. To get that, plants that undergo c4 or c3 photosynthesis and nitrogen fixation are the first to colonize these new soils, they're decomposing remains become the first generation of new top soil. So volcanic soil is not instantly fertile, but it's potential is certainly good.
2016-03-31 03:07:20 · answer #3 · answered by Joshua 1 · 0⤊ 0⤋
Volcanic materials break down and weather creating some of the most fertile soils on earth.
2006-10-23 17:15:25 · answer #4 · answered by Anonymous · 2⤊ 1⤋
The fertile soil is a result of the breakdown of various minerals - such as olivine, pyroxene, amphibole, and feldspar (the essential ingredients of volcanic ash and lava) which releases iron, magnesium, potassium etc to the soil.
2006-10-23 17:15:32 · answer #5 · answered by Dke 6 · 1⤊ 0⤋
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2016-04-10 22:12:32 · answer #6 · answered by Anonymous · 0⤊ 0⤋
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RE:
why is volcanic soil so fertile? please answer!!! homework due in 15 minutes!!!!!!!!!!?
2015-08-18 22:35:07 · answer #7 · answered by Ermin 1 · 0⤊ 0⤋
2 paragraphs long and due in 15 minutes? I think somebody's gonna get an F!!
2016-03-22 17:17:51 · answer #8 · answered by Niketa 4 · 0⤊ 0⤋
It's virgin soil, rich with nutrients and minerals. It contains no chemical fertilizers or contaminants.
2006-10-23 17:11:35 · answer #9 · answered by Emm 6 · 3⤊ 0⤋
because the lava material makes the nutrients in the soil expand and spread
2015-09-10 10:43:39 · answer #10 · answered by molly 1 · 0⤊ 0⤋