Question
Analyze the major drivers of human-induced land-use changes in India and their geographical consequences.
Detailed Solution
Human-induced land-use change reflects the changing relationship between development and land, as agriculture, urbanisation, infrastructure and resource extraction continuously reshape India’s geographical landscape.
Major drivers of land-use change
- Urbanisation and peri-urban expansion: Rising population, real-estate demand and urban sprawl convert agricultural land, commons, wetlands and scrublands into built-up areas.
a. Example: NRSC’s LULC Atlas shows built-up area increased by 30.77% between 2005-06 and 2022-23. - Agricultural expansion and intensification: Food demand, irrigation and multiple cropping alter cropland, fallow and grazing-land patterns.
a. Example: Gross Cropped Area rose from 201.3 million ha in 2013-14 to 217.8 million ha in 2023-24, while cropping intensity increased to 156.8%. - Infrastructure-led development: Roads, railways, airports, dams and transmission corridors convert land and fragment natural landscapes.
a. Example: Linear infrastructure through Himalayan and Central Indian landscapes creates habitat fragmentation and alters ecological connectivity. - Mining and mineral extraction: Open-cast mining replaces forests, agriculture and water bodies with mines, overburden dumps and settlements.
a. Example: Studies of Central Indian coalfields found forest losses of 7.3–17.6% and water-body losses of 5–10% due to mining. - Industrialization and economic corridors: Industrial clusters create demand for large contiguous land parcels, accelerating agricultural-to-industrial and rural-to-urban conversion.
a. Example: Expansion around Delhi-NCR and industrial corridors has driven substantial peri-urban transformation. - Changing agricultural economics: Declining farm profitability, water stress and changing market demand encourage conversion of agricultural land towards non-farm uses or different crops.
a. Example: India’s arable/agricultural land share declined from 66.7% in 1950-51 to 58.6% in 2023-24. - Tourism and recreational development: Resorts, roads, second homes and recreational infrastructure transform mountain slopes, forests and coastal landscapes. (eg: Himalayas and Western Ghats)
Geographical Consequences
- Loss and fragmentation of natural habitats: Conversion creates smaller, isolated ecological patches, disrupting wildlife movement and ecosystem connectivity.
a. Example: Infrastructure and mining in Central India fragment forest landscapes and wildlife habitats. - Changing rural landscapes: Urban-industrial expansion converts productive agricultural land, particularly around growing cities.
a. Example: NRSC found that 35% of new built-up area during 2005-06–2022-23 came from identified wasteland and agricultural categories. - Altered hydrological regime: Concretisation and wetland loss reduce infiltration, increase runoff and aggravate urban flooding and groundwater stress.
a. Example: Expansion of built-up areas around Bengaluru, Chennai and Gurugram has placed natural drainage and wetlands under pressure. - Soil degradation and land degradation: Deforestation, intensive cultivation, mining and overgrazing accelerate erosion, nutrient depletion and desertification.
a. Example: Coal-mining landscapes of Central India show substantial increases in land-degradation vulnerability with mining expansion. - Micro-climatic changes: Vegetation removal and built-up expansion alter albedo, evapotranspiration and heat storage, modifying local temperatures (e.g., urban areas)
- Biodiversity and ecosystem-service losses: Habitat conversion reduces carbon sequestration, pollination, groundwater recharge and flood regulation.
a. Example: Conversion and fragmentation of Western Ghats and Himalayan ecosystems threaten ecological connectivity.
“Land is finite, but its competing demands are expanding.” India therefore needs integrated land-use planning that directs development towards suitable spaces while protecting agricultural land, ecological corridors, wetlands and community resources.
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