What are growth rings?

Growth rings, also known as tree rings or annual rings, are rings that are visible in horizontal cross -sections of tree trunks in climate, which differ according to annual or annually. Changing seasonal conditions, especially temperature and sunlight, lead to differences in trees that can be traced by exploring growth rings. In areas with annual seasonal cycles, tree rings can be calculated to determine the age of the tree in years. In areas without particularly different seasons, the rings of the tree can be indistinct or completely missing. The scientific method of determining the age of a tree based on its rings is referred to as dendrochronology or easier to get out of trees.

changes in secondary growth or horizontal growth in vascular plants are responsible for creating growth circles in tree trunks. Secondary growth occurs from vascular Cambia, part of the vascular tissue of the tree. Vascular Cambium produces secondary xyl towards the inner tree and a tree andsecondary to the outward. Xylem is primarily responsible for transporting water throughout the tree and PHLO is responsible for transporting nutrients, especially sugars. This secondary growth occurs differently on the basis of seasonal conditions; These differences are manifested in the form of growth rings.

Each growth ring tends to consist of two different parts based on the conditions of cultivation. Spring wood, more often referred to as early wood, grows rapidly in the vegetation season, usually in spring or early summer. Summer wood, more often referred to as late wood, grows in mid -summer. Late wood tends to be significantly denser than early wood and is generally lighter colors.

growth rings, especially annual growth rings, can actually provide valuable records of climatic conditions during the tree life. Extremely hot and dry years or overcrowding that limits the ability of a tree to receive withLunny light, tends to have smaller rings, while mild conditions with a lot of sunlight and clotting result in wider rings. Sometimes more rings can be formed in one year; This occurs in the years when excellent growth conditions alternate with significantly poor conditions. There are almost no conditions under which the tree will not form a distinct ring during the year; Only significant climatic abnormality can lead to such occurrence.

Many other more specific information can be taken from growth rings. Basic information about weather conditions can be obtained by looking at the rings of the tree. Another analysis may reveal information about soil acidity, carbon dioxide and soil nutrition throughout the life of the tree.