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#India geography

2 public questions tagged with this topic.

Natural History of Indian subcontinent

The Semi-arid zone of India covers approximately

According to Rodgers and Panwar biogeographic classification adopted by Wildlife Institute of India, Semi-arid zone occupies about 16.6% of India's total geographical area, second only to Deccan Peninsula. It encompasses large tracts of Punjab plains, eastern Rajasthan, Gujarat excluding Kutch, western Madhya Pradesh, Maharashtra Marathwada, and parts of Andhra Pradesh. Characterized by 400-750 mm rainfall, dry deciduous thorn forests, Acacia-Anogeissus associations, and seasonal rivers. Supports wolves, hyenas, nilgai, and dryland agriculture requiring drought-tolerant crops. Such details are high-yield for NEET and CUET as they link morphological classification with modern molecular phylogeny insights.

Ref: Rodgers & Panwar Area Statistics Semi-arid 16.6%; WII Biogeographic Atlas Zone Coverage Percentage

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Natural History of Indian subcontinent

Which zone acts as a climatic barrier protecting India from cold northern winds?

Himalayan zone forming continuous 2400 km arc with average width 200 km and height above 6000 meters functions as formidable climatic barrier. It prevents penetration of frigid Siberian continental winds into Indian subcontinent, maintaining relatively mild winter in Gangetic Plains, and intercepts southwestern monsoon forcing heavy precipitation on southern slopes while creating rain shadow Tibetan plateau north. This orographic influence defines Indian monsoonal climate, biodiversity distribution, and cultural separation between Indo-Gangetic and Tibetan biota, acting as protector shield for India. This example illustrates how ecological adaptations correlate with biogeographic zonation and conservation prioritization in Indian context.

Ref: NCERT Geography Physical Features Himalayan Climatic Barrier; WII Himalayan Zone Barrier Function

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