HOW broyophta are economically beneficial for us???
For class 11th-
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♡Heya!!
1. Ecological Importance:
Bryophytes are of great ecological importance due to following reasons:
(a) Pioneer of the land plants. Bryophytes are pioneer of the land plants because they are the first plants to grow and colonize the barren rocks and lands.
(b) Soil erosion. Bryophytes prevent soil erosion. They usually grow densely and hence act as soil binders. Mosses grow in dense strands forming mat or carpet like structure.
They prevent soil erosion by:
(i) Bearing the impact of falling rain drops
(ii) Holding much of the falling water and reducing the amount of run-off water.
c) Formation of soil. Mosses and lichens are slow but efficient soil formers. The acid secreted by the lichens and progressive death and decay of mosses help in the formation of soil.
(d) Bog succession. Peat mosses change the banks of lakes or shallow bodies of water into solid soil which supports vegetation e.g., Sphagnum.
(e) Rock builders. Some mosses in association with some green algae (e.g., Chara) grow in water of streams and lakes which contain large amount of calcium bicarbonate. These mosses bring about decomposition of bi-carbonic ions by abstracting free carbon dioxide. The insoluble calcium carbonate precipitates and on exposure hardens, forming calcareous (lime) rock like deposits.
2. Formation of Peat:
Peat is a brown or dark colour substance formed by the gradual compression and carbonization of the partially decomposed pieces of dead vegetative matter in the bogs. Sphagnum is an aquatic moss. While growing in water it secretes certain acids in the water body.
This acid makes conditions unfavorable for the growth of decomposing organisms like bacteria and fungi. Absence of oxygen and decomposing microorganisms slows down the decaying process of dead material and a large amount of dead material is added year by year. It is called peat (that is why Sphagnum is called peat moss).
Various Uses of Peat are:
(a) Used as fuel in Ireland, Scotland and Northern Europe.
(b) In production of various products like ethyl alcohol, ammonium sulphate, peat, tar, ammonia, paraffin, dye, tannin materials etc.
(c) In horticulture to improve the soil texture.
♡Hope it helps...solly..
1. Ecological Importance:
Bryophytes are of great ecological importance due to following reasons:
(a) Pioneer of the land plants. Bryophytes are pioneer of the land plants because they are the first plants to grow and colonize the barren rocks and lands.
(b) Soil erosion. Bryophytes prevent soil erosion. They usually grow densely and hence act as soil binders. Mosses grow in dense strands forming mat or carpet like structure.
They prevent soil erosion by:
(i) Bearing the impact of falling rain drops
(ii) Holding much of the falling water and reducing the amount of run-off water.
c) Formation of soil. Mosses and lichens are slow but efficient soil formers. The acid secreted by the lichens and progressive death and decay of mosses help in the formation of soil.
(d) Bog succession. Peat mosses change the banks of lakes or shallow bodies of water into solid soil which supports vegetation e.g., Sphagnum.
(e) Rock builders. Some mosses in association with some green algae (e.g., Chara) grow in water of streams and lakes which contain large amount of calcium bicarbonate. These mosses bring about decomposition of bi-carbonic ions by abstracting free carbon dioxide. The insoluble calcium carbonate precipitates and on exposure hardens, forming calcareous (lime) rock like deposits.
2. Formation of Peat:
Peat is a brown or dark colour substance formed by the gradual compression and carbonization of the partially decomposed pieces of dead vegetative matter in the bogs. Sphagnum is an aquatic moss. While growing in water it secretes certain acids in the water body.
This acid makes conditions unfavorable for the growth of decomposing organisms like bacteria and fungi. Absence of oxygen and decomposing microorganisms slows down the decaying process of dead material and a large amount of dead material is added year by year. It is called peat (that is why Sphagnum is called peat moss).
Various Uses of Peat are:
(a) Used as fuel in Ireland, Scotland and Northern Europe.
(b) In production of various products like ethyl alcohol, ammonium sulphate, peat, tar, ammonia, paraffin, dye, tannin materials etc.
(c) In horticulture to improve the soil texture.
♡Hope it helps...solly..
Answered by
0
hey.......
here...u.....
.....Some of the economic importance of Bryophytes are as follows:
1. Ecological importance:
The liverworts, mosses and lichens are supposed to be the pioneers in establishing vegetation where other vegetation seems to be practically impossible.
They colonize the barren rocks and exposed areas of hills, and make them suitable for growing angiospermic and other plants by depositing humus soil and plant debris. In the beginning the forms and grasses grow, and ultimately shrubs and trees also establish, and the whole area converts into dense wood
2. Packing material:
Most of the mosses are used as packing material after being dried. They make a fairly good packing material in the case of glass ware and other fragile goods. Especially the dried peat mosses (Sphagnum spp.) are used to pack bulbs, cuttings and seedlings for shipment
3. Used in seed beds:
Since the peat mosses have remarkable power to absorb and hold water like a sponge, they are extensively used in seed beds and green houses to root cutting. The peat mosses (Sphagna) are also used to maintain high soil acidity required by certain plants.
4. As a source of fuel:
The peat is also a potential source of coal. Dried peat may be used as fuel. In Ireland, Scotland and other European countries the peat is used for fuel. In colder parts of the world where peat reaches its greatest development, the lower layers of peat become carbonized, and after the ages have passed, becomes available to human kind in the form of coal.
5. Absorbent bandages:
The Sphagnum plants are slightly antiseptic and possess superior absorptive power. On account of these properties they may be used for filling absorbent bandages in place of cotton, in the hospitals
hope it helps dude....
have a great day ( tomorrow)...
by...
Roshan....
here...u.....
.....Some of the economic importance of Bryophytes are as follows:
1. Ecological importance:
The liverworts, mosses and lichens are supposed to be the pioneers in establishing vegetation where other vegetation seems to be practically impossible.
They colonize the barren rocks and exposed areas of hills, and make them suitable for growing angiospermic and other plants by depositing humus soil and plant debris. In the beginning the forms and grasses grow, and ultimately shrubs and trees also establish, and the whole area converts into dense wood
2. Packing material:
Most of the mosses are used as packing material after being dried. They make a fairly good packing material in the case of glass ware and other fragile goods. Especially the dried peat mosses (Sphagnum spp.) are used to pack bulbs, cuttings and seedlings for shipment
3. Used in seed beds:
Since the peat mosses have remarkable power to absorb and hold water like a sponge, they are extensively used in seed beds and green houses to root cutting. The peat mosses (Sphagna) are also used to maintain high soil acidity required by certain plants.
4. As a source of fuel:
The peat is also a potential source of coal. Dried peat may be used as fuel. In Ireland, Scotland and other European countries the peat is used for fuel. In colder parts of the world where peat reaches its greatest development, the lower layers of peat become carbonized, and after the ages have passed, becomes available to human kind in the form of coal.
5. Absorbent bandages:
The Sphagnum plants are slightly antiseptic and possess superior absorptive power. On account of these properties they may be used for filling absorbent bandages in place of cotton, in the hospitals
hope it helps dude....
have a great day ( tomorrow)...
by...
Roshan....
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