HUMAN ENVIRONMENT INTERACTIONS: THE TROPICAL AND THE SUBTROPICAL REGION

 

 

CLASS-VII     GEOGRAPHY

CHAPTER 8.   HUMAN ENVIRONMENT INTERACTIONS:

THE TROPICAL AND THE SUBTROPICAL REGION

 

LIFE IN THE AMAZAN BASIN

•        Near to equator

•        River’s mouth- the place where a river flows into another body of water-the river basin drains portions of Brazil, parts of Peru, Bolivia, Ecuador, Columbia and a small part of Venezuela

 

CLIMATE-

·       10 degree north to 10 degree south

•        Hot and wet climate throughout the year

•        The skins feel sticky

•        Rains almost every day without warning

•        The day temperatures are high with very high humidity

•        Low temperature at night, but humidity remains high humidity

 

TROPICAL REGION (RAIN FOREST)

•        Dense forest

•        Sun light cannot reach the ground

•        Ground remains dark and damp

•        Tall vegetation

•        Bromeliads are special plants that store water in their leaves

•        Birds- Toucans, humming bird, etc.

•        Birds create loud sound in the forest

•        Animals- monkeys,sloth and ant-eating Tapirs

•        Reptile and snakes- crocodile, snakes, pythons, anaconda, boa

•        Fish- flesh eating Piranha

 

PEOPLE OF THE RAIN FOREST

•        Clear the forest to cultivate

•        Men hunt and fish in the rivers

•        Women take care of the crops- tapica, pineapple and sweet potato

•        They practice slash and burn agriculture

•        Manioc- the staple food known as cassava-grows under the ground

•        Cash crops- coffee, maize and cocoa

•        Maloca- large apartments with slanting roof

•        After 1970 changing life style

•        More industries coming

•        More settlements

•        Helicopter in remote areas

LIFE IN THE GANGA-BRAHMAPUTRA BASIN

•        The tributary rivers of Ganga and Brahmaputra form the Ganga- Brahmaputra Basin

 

•        Lies between 10 degree N and 10 degree S

•        Tributaries of Ganga- the Ghaghra,  the Son, the Chambal, the Gandak, the Kosi

•        Sundarban delta in this basin

•        Dominated by Monsoon climate

•        The Monsoon brings rain from mid-June to mid-September

•        Summers are hot, winters are cool

•        Soil is very fertile, dense population in plain area

•        Less population in mountain region

•        Crop- wheat, maize, sorghum, gram and millets

•        Main crop- paddy

•        Cash crop- sugarcane, jute

•        Silk worm cultivate in Bihar and Assam

 

VEGETATION

•        Tropical deciduous trees are found in plain area

•        Sal, teak, peepal trees are found

•        Thick bamboo groves are common

•        The delta region covered with the mangrove forests

•        In parts of Uttarkhand, Sikkim and Arunachal Pradesh, coniferous trees like pine, deodar and fir can be seen due to cool climate and the slopes are steep

 

WILDLIFE

•        Animals- Elephants, Deer, Monkeys are common

•        One- horned rhinoceros are found in this basin

•        In Delta region- Bengal tiger, crocodiles and alligator are found

•        Fish- rohu, catla, hilsa

•        In the fresh waters of River Ganga and River Brahmaputra, a variety of dolphin locally called susu (blind dolphin) is found. The presence of susu indicates the health of the river.

•        Staple diet- fish and rice

•        Towns- Allahabad, Kanpur, Varanasi, Kolkata, Lucknow, Patna- have more density

•        Tourism- Tajmahal (Yamuna) in Agra, Allahabad, Bihar, Lucknow

•        Kaziranga and Manas wild life sanctuaries in Assam

•        Tribal culture in Arunachal Pradesh

 

 

 

 

……..THE END…….