How to tell the age of a tree

By -
How to tell the age of a tree
Annual rings (Image courtesy: Amanda Tromley) 
              If we examine the trunk of a tree that has been chopped down, we will see first of all the outer ring of the bark which acts as a sort of waterproof coat for the tree. Inside the outer covering come a number of concentric rings.
                 Each one of these rings represents a year in the life of the tree. The space between the rings is the wood which the tree produced during one year.
                By counting the number of rings we can tell when the tree was born. These rings also indicate the dry periods the tree lived through as well as wet periods. In dry times the rings are very thin. In heavy rain fall years the rings are thicker.
How to tell the age of a tree
Image courtesy: Christian Schnettelker
              Slender course of wood can be taken from a tree, from the bark to the center of the trunk: these samples reveal the same information and are taken with a borer that does no significant damage to the tree.
             Scientists can learn about the climatic changes that happened in the past by studying the shape and size of the rings.

Comments

Post a Comment

Popular posts from this blog

Holy Ghost Orchid

By -
Image
              Peristeria elata , the national flower of Panama is a species of orchid commonly known as dove orchid, or holy ghost orchid. Family : Orchidaceae Peristeria elata  (Image courtesy: TommyCrash / wikimedia commons ) Distribution : It is widely distributed in the American tropics from Costa Rica and Panama south to Peru and Brazil. Habitat : It is found in shaded grassland edges in tropical forests at altitudes of 100 to 700 m. Characters: They have teardrop-shaped (ovate) pseudobulbs covered with papery sheaths. The leaves are simple and lanceolate-elliptic in shape with a plicate leaf surface which arise from the apex of pseudobulbs and the inflorescence are arise from the base of the pseudobulbs may be pendulous or erect and from 6 inches to 4 feet long, bearing 4-20 flowers. The base colour of the flowers is white with some pink or red spots. The flowers are fragrant and...
Read more

India's Floating Post Office

By -
Image
Did you know about India's one and only Floating Post Office? Are you surprised? (Image courtesy: Mike Prince / Wikimedia commons)          You can find this fascinating and beautiful post office floating on the waters of gorgeous Dal lake in Srinagar. It is one of the important attractions of Kashmir which is not only visited by locals for posting letters but also by tourists at large. The stamps here feature the image of Dal Lake, which is a kind of tribute to this nature's work  of art.            The floating post office was inaugurated by Omar Abdullah in 2011, the former Chief Minister of the state of Jammu and Kashmir.          The post office premise features a philately museum that features a huge collection of unique stamps and showcasing its fascinating history. Also there is a souvenir shop from where one can buy postcards, stamps, local items, greeting cards and books on Kas...
Read more