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Posted on 8:00 AM by Wanto and filed under
By Alexander Sea
The root system is greatly influenced and modified by the environment. In shallow soils over rock, heavy clay soils, or on sites with a high level of underground water, even species whose roots normally penetrate to great depths may have shallow anchorage.
For instance, in the case of the spruce, with its thick, conical crown, down which most rain water runs to the ground, the spreading roots branch mostly in the circle circumscribed by the base of the crown, where the soil has the greatest surface moisture.
In the beech and oak, where rain falls between the leaves or is conducted along the branches to their tips, the root system is spread out mainly around the trunk.
In species which have a high consumption of water the surface roots extend beyond the dimensions of the circle drawn by the crown - as much as fifteen to twenty-five metres from the trunk of a mature aspen, poplar; ash, etc. The depth to which roots grow also varies markedly according to the species.
On the bark we can often see small round or slit-like patches that are slightly raised, and different in colour, from the surrounding bark. These are called lenticels and serve as a path for the exchange of gases between the atmosphere and the living cells inside the trunk and branches.
The symbiosis of mushrooms and woody plants occurs primarily in soils rich in organic substances and raw humus; in soils with insufficient organic matter such a symbiotic association may change to a parasitic one.
For instance, in the case of the spruce, with its thick, conical crown, down which most rain water runs to the ground, the spreading roots branch mostly in the circle circumscribed by the base of the crown, where the soil has the greatest surface moisture.
In the beech and oak, where rain falls between the leaves or is conducted along the branches to their tips, the root system is spread out mainly around the trunk.
In species which have a high consumption of water the surface roots extend beyond the dimensions of the circle drawn by the crown - as much as fifteen to twenty-five metres from the trunk of a mature aspen, poplar; ash, etc. The depth to which roots grow also varies markedly according to the species.
On the bark we can often see small round or slit-like patches that are slightly raised, and different in colour, from the surrounding bark. These are called lenticels and serve as a path for the exchange of gases between the atmosphere and the living cells inside the trunk and branches.
The symbiosis of mushrooms and woody plants occurs primarily in soils rich in organic substances and raw humus; in soils with insufficient organic matter such a symbiotic association may change to a parasitic one.
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When planning front garden, you have to make sure that the front garden welcome visitors so planting must be kept low to one side for easy access and unobstructed view.
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