Unit 1: Threatened UK Habitats - Chalk Grassland
- Created by: rosieevie
- Created on: 21-04-14 18:46
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- Threatened UK Habitats - Chalk Grassland
- Creation
- Woodland cleared to create farmland from the Stone Age onwards
- Soil erosion stopped arable farming
- Sheep grazing has protected the remaining soil but prevented ecological succession establishing woodland again
- Key Features
- Plants e.g. cowslips, monkey orchids
- Chalkhill blue butterfly
- Birds e.g. curlew, skylark
- Threats
- Intensive farming e.g. ploughing and fertiliser use
- Urban expansion and road building
- Abandoment of unprofitable sheep farming - leads to secondary succession of scrub woodland
- 'Improvement' of grassland using fertilisers, pesticides and re-seeding
- Conservation Measures
- Maintaining grazing
- Reducing fertiliser and pesticide use
- Shrub clearance
- Creation
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