Friday, 22 June 2012

Flora of Bihar


Bihar has notified forest area of 6,764.14 km2 (2,612 sq mi), which is 7.1% of its geographical area.[7]The sub Himalayan foothill of Someshwar and the Dun ranges in the Champaran district are another belt of moist deciduous forests. These also consist of scrub, grass and reeds. Here the rainfall is above 1,600 millimetres (63 in) and thus promotes luxuriant Sal forests in the area. The most important trees are Shorea Robusta, Sal Cedrela Toona, Khair, and Semal. Deciduous forests also occur in the Saharsa and Purnia districts.[55] Shorea Robusta (sal), Diospyros melanoxylon (kendu),Boswellia serrata (salai), Terminalia tomentose (Asan), Terminalia bellayoica (Bahera), Terminalia Arjuna (Arjun), Pterocarpus Marsupium (Paisar), Madhuca indica (Mahua) are the common floraacross the forest of Bihar.
The Ganges River dolphins, or "sois" are found in the Ganges and Brahmaputra.This river dolphin is the national aquatic animal of India. It is now considered amongst the most endangered mammals of the region. The dolphins range from 2.3 to 2.6 meters in length. They have impaired vision due to the muddy river water but use sonar signals to navigate.Vikramshila Gangetic Dolphin Sanctuary, nearBhagalpur is set up to ensure the protection of this species.
Valmiki National ParkWest Champaran district, covering about 800 km2 (309 sq mi) of forest, is the 18th Tiger Reserve of India and is ranked fourth in terms of density of tiger population.[56] It has a diverse landscape, sheltering rich wildlife habitats and floral and faunal composition, along with the prime protected carnivores.

Demographics


Bihar was the third most populated state of India with total population of 82,998,509 (43,243,795 male and 39,754,714 female).[1][58] Nearly 85% of Bihar's population lived in rural areas. Almost 58% of Biharis were below 25 years age, which is the highest in India. The density was 881. The sex ratio was 919 females per 1000 males. Since ancient times, Bihar has attracted migrants and settlers including BengalisTurks from Central Asia, PersiansAfghans and Punjabi Hindu refugees during the Partition of British India in 1947.[59] Bihar has a total literacy rate of 63.82% (75.7% for males and 55.1% for females).[60] As of 2011 census, the density has surpassed 1,000 per square kilometer, India's densest state, but is still lower thanWest Java or Banten of Indonesia.

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