CHAPTER-8 INDIA-CLIMATE, VEGETATION AND WILDLIFE PRESENTED BY Dr. SWASTI SINHA
WEATHER MAJOR SEASONS OF THE EARTH 1. Cold season 2. Hot season 3. Southwest monsoon season 4. Season of retreating monsoon
COLD WEATHER SEASON Cool, dry winds blowing from north to south Temperature is quite low in north Sun rays not falling directly in north HOT WEATHER SEASON Sun rays directly fall in north Temperature very high Hot and dry winds called loo .
SOUTHWEST MONSOON SEASON Onset and advance of monsoon Winds from Arabian sea and Bay of Bengal towards land Wind strike mountains rainfall RETREATING MONSOON . Winds moving back from mainland to Bay of Bengal Southern parts of India receive rainfall in this season.
CLIMATE Monsoon type Affected by location, altitude, distance from sea and relief . Mawsynram in Meghalaya worlds highest Rainfall
NATURAL VEGETATION Bushes, shrubs and trees .5 types of natural vegetation 1. Tropical rainforest 2. Tropical deciduous forest 3. Thorny bushes 4. Mountain vegetation 5. Mangrove forest
TROPICAL RAINFOREST . Areas having heavy rainfall Sunlight doesn't reach the ground Evergreen forests Mahogany, Ebony, Rosewood Andaman and Nicobar, North-Eastern States, and a narrow strip of Western slope of Western Ghats.
TROPICAL DECIDUOUS FOREST Monsoon forest Less dense . Shed leaves at a particular time of year . Sal, Teak, Peepal, Neem, Sheesham o Madhya Pradesh, Uttar Pradesh, Bihar, Jharkhand, Chhattisgarh, Odisha, and in parts of Maharashtra.
SAL SHEESHAM LEAVES
THORNY BUSHES In dry areas of country Cactus, Khair, Babool, Keekar Ghats and Gujarat. .Leaves are in form of spines . Rajasthan, Punjab, Haryana, Eastern slopes of Western
BABOOLTHORNS WILD KEEKAR LEAVES AND FRUITS
MOUNTAIN VEGETATION Variation in height:s Wide range of species found in mountains Temperature falls with increase in heights conical trees Chir, Pine and Deodar.
WHY ARE FORESTS NECESSARY? Oxygen from plants . Soil binding Commercial uses-timber, fodder, medicinal plants, herbs, lac, honey, gum, fruits, rubber, shelter etc. Natural habitat of wildlife . Van mahotsava
SNOW LEOPARD WILD GOAT
MIGRATORY BIRDS Pelican, Siberian Crane, Stork, Flamingo, Pintail Duck, Curlew SIBERIAN CRANE FLAMINGO PINTAIL DUCK