Wind-environmental components, Biology

Wind

Strong current of air is known as wind, it is an important ecological factor as it affects plant life mainly on flat plains, along sea coasts and at high altitudes in mountains. It directly affects transpiration, causes mechanical ,damage and is an important agent of dispersal of pollens, seeds and fruits.

Plants in particular have a number of physical as well as anatomical and physiological adaptation to windy conditions. For example, high velocity winds may cause the breaking of branches of trees or even uproot the whole tree. In forests where there are trees of different heights the wind velocity is reduced by about 80 per cent, and damage is much less. Such. trees in forests serve as natural windbreaks or shelter belts. A windbreak is a densely planted strip of tall trees usually between 15 m and 60 m wide, oriented at right angles to thedirection'of the wind so as to reduce the wind velocity near the ground. Windbreaks reduce the rate of transpiration, evaporation, abrasion, breakage, and soil erosion by wind. Often special trees and shrubs are planted around fields and orchards to provide protection against the damaging effects of strorlg winds.

In windy areas such as high mountains and coastal regions the canopy of trees becomes abnormal and becomes flag type or one sided. Branches fail to develop on a windward side but develop towards the leeward side due to the protection provided by the stem.

Posted Date: 12/10/2012 7:16:14 AM | Location : United States







Related Discussions:- Wind-environmental components, Assignment Help, Ask Question on Wind-environmental components, Get Answer, Expert's Help, Wind-environmental components Discussions

Write discussion on Wind-environmental components
Your posts are moderated
Related Questions

LIPIDS Term given by Bloor. Lipids do not form polymers in nature except cutin (polymere of fatty acids). Most lipids are formed of fatty acids & alcohol. Ester bo

When glucagon binds to it's receptor on a liver cell, which one of the following sequences of events occurs to activate protein kinase A? -activation of G protein, activation of

Assume that the smallest object your visual system can detect is 100 micrometers in size and you have a microscope with a 10x ocular lens. If you have an object that is 1 nanometer

Q What are the three major groups into which mammals are divided? The three groups into which mammals are divided are: monotremes (or prototherian that is platypus), placental

Describe briefly how platelets, fibrin and red cells interact to form a blood clot.   Platelets release a substance which, indirectly, causes fibrinogen to be changed to fi

Health Stroke Scale: Stroke is a leading cause of death, hospitalization, disability and health care expenditure in U.S. (Fonarow G. et al., 2012).  Stroke is a medical condit

Q. What are the main biological functions of water? Water is the basic solvent for chemical reactions of living beings; it is the main means of substance transportation in the

The human body can exhibit a wide range of resistances to current depending on the path of the current, contact area, and sweatiness of the skin. Suppose the resistance across the

In systematic four types of relationships are studied and they are: a) Relationships of phylogeny (evolutionary descent) or the degree to which two organisms are thought to be r