Thar desert case study
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40 Terms
Where is the Thar Desert located?
India and Pakistan.
How many people live in the Thar Desert?
About 16 million.
What is the population density?
83 people per km².
What biome is the Thar Desert?
Desert biome.
How much rainfall does it get yearly?
About 200 mm.
What are the temperature extremes?
0°C to 50°C.
Why is natural productivity low?
Low rainfall, heat, poor soil.
Which river improves vegetation?
Luni River.
Why can vegetation still be poor near the river?
Salty or poor soil.
Why is farming difficult in the Thar?
Unpredictable weather and low rainfall.
How much did rainfall increase since 2001?
64%.
How much did vegetation increase?
38%.
What boosted vegetation?
More groundwater irrigation.
What soil issue limits plant growth?
High pH and nutrient deficiency.
Why is irrigation hard?
Water evaporates fast.
What caused recent rainfall increase?
Climate change.
How does rain help farming?
Improves soil nutrients.
What problems can too much rain cause?
Waterlogging and salinity.
What technology creates farmland?
Soilification.
What is a concern with soilification?
Alters natural ecosystems.
Why is the region developing quickly?
Urban growth, farming, tourism, mining.
What theory warns food may not keep up with population?
Malthus’ Theory.
What is the predicted population by 2050?
About 23 million.
What will rainfall likely do?
Keep increasing.
What will food production likely do?
Grow with technology.
What risk comes from too much rain?
Soil becomes unusable.
How might climate change affect plants?
They may not adapt and could die out.
How might it affect animals?
Migration or extinction.
What might people need in the future?
Import food or use artificial farming.
What improves sandy desert soil?
Pineapple nanofibres.
How much do they improve water retention?
About 68%.
How do they help plants?
Healthier, stronger growth.
Why is this sustainable?
Uses pineapple waste.
Why is it useful in deserts?
Boosts water and nutrient holding.
What long-term issue does it help?
Food security.
How has human activity changed the Thar?
More farming, irrigation, and development.
What indirect factor also affects it?
Climate change.
What is a challenge in research?
Limited new data.
What should future research study?
Long-term climate and farming impacts.