Human Geography: Nature, Scope and Population
Domain 2: Human Geography - Nature, Scope and Population
This domain asks how human activity is arranged in space and how population numbers are measured. UPMSP expects clear distinctions between approaches, population measures and demographic stages, plus map-based reasoning about distribution.
Core rules
- Nature and scope: human geography studies the relationship between people and their environment, including population, settlement, economy and culture. Environmental determinism says nature limits human action; possibilism says technology widens choices; neo-determinism sees people as capable but within limits.
- Density: arithmetic density = total population ÷ total area. Physiological density = total population ÷ cultivable area. The second is usually higher and better shows pressure on farmland.
- Growth: natural increase = births − deaths; actual growth also includes net migration. A falling birth rate can still give positive growth because deaths may fall faster and population momentum continues.
- Demographic transition: high birth and death rates (Stage I) → falling death rate (Stage II) → falling birth rate (Stage III) → low stable rates (Stage IV).
Worked example
District X has 1,200,000 people and an area of 4,000 km², of which 3,000 km² is cultivable. Arithmetic density = 1,200,000 ÷ 4,000 = 300 persons/km². Physiological density = 1,200,000 ÷ 3,000 = 400 persons/km². The gap of 100 shows that pressure on cultivated land is greater than total-area density suggests.
Traps
Do not use total area for physiological density. Do not read a narrow-based pyramid as high growth. Do not confuse sex ratio (females per 1,000 males in India's census convention) with the ratio of males to females. Do not call low density empty without considering deserts, forests or land use.