Impact of Agricultural and Industrial Practices on the Ecosystem — Revision Notes
ICSE · Class 9 · Economic Applications
Impact of Agricultural and Industrial Practices on the Ecosystem revision notes for ICSE Class 9 Economic Applications: 4 topics in quick points.
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Key Topics to Revise
1. Meaning and Features of Ecosystem
- An ecosystem consists of plants, animals and other living things which exist and survive together while adjusting to their physical environment.
- Living organisms interact with one another and with land, water, air, soil, and rocks.
- All living things in an ecosystem are grouped as a community.
2. Impact of Agricultural Practices on the Ecosystem
- Changing land use has led to deforestation and loss of topsoil.
- Deforestation for agricultural purposes cleared 1.5 lakh hectares of forest land per year in India between 1950-51 and 1979-80, dropping to about 16,500 hectares per year thereafter.
- Nearly 10.3 million hectares of land in India is affected by soil erosion annually.
3. Measures to Check Destruction of Ecosystem from Agriculture
- Small and fewer dams are better alternatives to large dams.
- Strong opposition to the construction of dam on Narmada river is a pointer to the ecological and displacement problems caused by large dams.
- Forest conservation is essential to reduce soil erosion, erratic rainfall, floods, and climate change.
4. Impact of Industrial Practices on the Ecosystem
- Industrial development has created three major problems: depletion of natural resources, generation of industrial waste, and environmental damage through pollution.
- Mineral resources are non-renewable and cannot be replenished once used.
- Fossil fuels are non-renewable sources of energy.
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