Researchers from the University of Northern Arizona , the world's tallest trees, a study on the factors that control the growth of the trees that were revealed. ( Ian Woodward , "Plant science : Tall storeys " Nature 428, 22 April 2004 , p. 807-808 ), ( George W. Koch, Stephen C. Sillett , Gregory M. Jennings & Stephen D. Davis , " The limits to tree height " , Nature 428, 22 April 2004 , p. 851-854 )There is an evident design tree . The Tree of cells that comprise the root , stem, bark, water columns , has been organized to form the branches and leaves . Cells constitute components that perform the functions necessary for the survival of the tree , a co-operation between these parts is carried out in a systematic .There is also a tree , a giant chemical factory is engaged in the production . Here is a very complex chemical processes are carried out under a perfect plan . Evidence that the organs that carry out these procedures is available as a computer calculations .One of the most striking facts about a tree , the organization and information systems , yet small and round seed tree into their DNA, is installed . Seeds, installed by following the instructions in the DNA itself bears no similarity in appearance and size into a giant structure . After the fall of the ground and slightly moistened a seed take root and branching into a tree , a clear sign of God's perfect creation .This is a point of growth to a halt after the miraculous creature of God is a part of the equilibrium created the earth . If the trees that make up the cells keep growing in an uncontrolled manner consequences might arise if they were up to the extinction of life on earth .Scientists who have studied the factors that determine how much trees can grow , carried out an interesting study on the world's tallest trees . In excess of one hundred meters in height to climb the trees , researchers looking for clues to these factors by taking measurements .Holds the title of world's tallest tree 112.7 meter tall giant redwood ( Sequia sempervirens) , including the five highest on the tree views they did. This is a high tree height, is the same as a 30-storey building .Scientists previously , the main factor determining the height of the tree , the height lies in the thought that the mechanical stresses . But the trees to overcome these tensions and realized that they have a very robust design . This work , led to a focus on water, raising capacity . Northern Arizona University ecologist George Koch and his team conducted the study findings were obtained in this direction . The researchers linked to their natural environment and laboratory studies , the main factor that controls the maximum height of the trees 'tree tops water supply ' revealed.
Water condensation on top of the trees ( transpiration ) , through the pores on the surface of leaves that reaches to evaporate . Transpiration of water from the roots up to the top of the tree , it moves through the woody tissue cells . This movement of water , and overcomes the forces of gravity and friction, upwardly extend in the form of a column . Gravity and friction forces opposing the movement of water is maximum at the top , water reaches its maximum value at its peak in the force that propels up . Water column can withstand this voltage to the brink of disintegration . This threshold column in the form of air bubbles in the water come out and it refers to the spot , and this interrupts the distributing plant science ' embolism ' is called .Koch and his colleagues at the top of the tallest redwoods measured the maximum tension of the water column . This measurement revealed that near the point of maximum tension embolism . This voltage is the value of a control that affect how tall the tree would also factor. The study further revealed three factors determining the height of the trees .
Water reaching the top of the trees , normally a propulsive effect on cell growth . However, the increase in the effect of gravity and friction at the top of the tree , reducing the water flow capacity of cells to be smaller and have thicker walls hills leads. As a result, the leaves are becoming smaller and thicker . Top of cypress trees , the highest value of leaf thickness . This also points to a large extent prevented the development of the tree . Thus the increasing leaf thickness, height control is a second factor .Stay in the hills and small leaves, reduce the photosynthesis in this region . This effect reduces the efficiency of photosynthesis , tree height was found to be the third factor .Koch and his 110 -meter leaves the rate of CO2 , found that at the lowest rate in the free air . This is the fourth factor : restrictions on the purchase of CO2 through leaf pores .Scientists , on the basis of these four physiological factors that control the height of the tree could grow attempted to calculate the maximum height . As a result, the trees reach a maximum height of 122 to 130 meters from the estimate put forward . Accordingly, the growth of trees with more than 2000 years old could be continued . Observations that the trees grow at approximately 0.25 m to support this idea.Limiting factors set out in this study , is very important for the ecological balance . In short, if we repeat;
Putting it against the force of gravity, and friction of the water being move forward after a certain level, it leaves shrink depending on the thickness, decreasing the efficiency of photosynthesis, photosynthesis, and finally drop the required minimum CO2 uptake due to factors beyond a certain point the tree growth is hindered.
So many to inanimate natural equilibrium brought about by the mutual influence, is not endangered by uncontrolled tree growth. From this perspective, the study of biological processes in living things, the balance of nature in support of large-scale, and what is the latest example of that so perfectly arranged. Allah existed without a doubt one of the reasons of these factors. Seed germination, seedlings can be attributed to the transformation of tree seedlings, tree every step to stop the extension of an outstanding manifestation of the mind.
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