NCERT Class 7 Geography Chapter 8: Human Environment Interactions – Tropical & Subtropical Region Completes Notes Part 2

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Human Environment Interactions – Tropical & Subtropical Region

Ganga – Brahmaputra Basin

Image of GangaGanga – Brahmaputra Basin

Image of Ganga – Brahmaputra Basin

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We talk about Ganga Brahmaputra basin as we say it runs from the origin Ganga far into the region’s up to Bangladesh where it finally merges with Brahmaputra to form the delta area now as you move along Ganga you would have different characteristics of vegetation that would be seen first of all this whole region of Ganga is mainly occupied by numerous towns so you would have a Allahabad, Lucknow, Kanpur, Varanasi that you would see in Uttar Pradesh then you have Kolkata in West Bengal then you would have Kosi in Bihar. So you would have numerous major towns that are seen along the Ganga Brahmaputra Rivers that flow here so this is Ganga and this is Brahmaputra that flows and finally merge into the Ganga-Brahmaputra delta. The regions where this delta is formed is known for its Mangrove vegetation, Mangrove vegetation are known for the unique trees because of the land marshy land areas the roots cannot survive die down so they move up and they take air from the atmosphere so roots are penetrating up as such roots are known as numetophors. Numetophors are the roots that are kind of Arial roots we also call these as aerial roots and they are seen in the mangrove vegetation. Brahmaputra region where Ganga flows is a fertile belt so you have the fertile areas of Ganga that are seen rich in agriculture mainly production of wheat and production of rice towards the coastal areas is seen this is again high-density areas with improvement in transportation there are lot many avenues for agriculture and cropping patterns that have come up.

Again this is monsoon dependent region so region from June to September you have kind of good vegetation agricultural vegetation that is seen in the region. summers are hot winter are cold in this region as you go higher in the elevation you would have changes in the tree that we would see you would have a teak, sal that would be seen and further higher in the elevations you would have conifers that you would see towards the Himalayan region. You have kind of unique fauna that is found in the regions closed to west Bengal that is “susu” which is a kind of Dolphin that is blind dolphin and this dolphin is recently news because it’s kind of getting endangered due to the fact that you have lot of pollutants and industrial wastes that are flowing in so as a result you have a huge depletion in the population of dolphins that is seen in this region again this region is known for tourism activities so you have Taj Mahal in Agra, then you have major religious center located closed to Ganga River you have Haridwar, Varanasi, some of the region’s then Lucknow you have Imambara, Kaziranga forest area in Assam, then you have forest areas in the hills of the Darjeeling where you have the tributaries from Brahmaputra that flow in so these are the major highlights for the Ganga-Brahmaputra basin.