They are also called as semelparous plants. The rivers that have water throughout the year are called perennial rivers. Monocarpic plants are those plants that flower and fruit only once and then die. Their height can vary from 1-4 m. What are perennial and non-perennial rivers? (ii) they get supply of water only when the rivers are in flood. The himalayan river system are perennial because they get glacier water during summer season. Perennial rivers and lakes are those which bear water throughout the year while seasonal rivers and lakes have water only during a particular period, ie rainy season. These are of a relatively lower height and are woody plants. They flower many seasons in a lifetime. (i) they remain operational only during the rainy season. Most perennial plants are polycarpic. Grassland ecosystem contains five types of grasslands that are tropical … In india himalayan rivers like ganga and bhramaputra are perennial rivers. Inundation canals 1. The grassland ecosystem contains plants that do not grow much. Most himalayan rivers originating in himalayan peaks are perennial because they are fed by the melting snow throughout the year. Most of the rivers in peninsular india are non-perennial because they are mostly rain-fed. Such canals are useful for the diversion of flood water from the rivers and remain operational … Hence, option a is correct. The plants may be annual (brassica), biennial (sugar beet) or perennial (canna). Inundation canals are being converted to perennial canals because: Was this answer helpful? These are both rain fed and formed through melting of the … Grasslands grow in the area where there is less moisture in the soil. In this, water is taken out directly from the rivers without making any kind of barrage or dam. Give reasons why the himalayan region consists of perennial rivers.
