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Environmental Change
Network 










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ECN Sites: Porton Down
Sponsoring organisation(s) Defence Science and Technology Laboratory
Site Characteristics
| Easting |
4253 |
| Northing |
1365 |
| Min Altitude |
m |
| Max Altitude |
m |
| Area of Site |
1227ha |
| Mean annual temperature* |
9.7oC |
| Mean annual rainfall* |
754mm |
Locate site in multimap
* calculated from the ECN database |

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| Description
As well as being a Site of Special Scientific Interest (SSSI), Porton Down is also a Special Area of Conservation (SAC) and a Special Protection Area (SPA) covering over 1500 hectares. It constitutes the largest uninterrupted tract of semi-natural chalk grassland in Britain, a habitat which has declined by more than 80% in the last 50 years. As well as the grassland the site supports large areas of mixed scrub, including juniper, and broadleaved, mixed and coniferous woodland. |
| Related Links
- The article "ECN site lines" in ECN News No. 9 (Spring 1997) gives further information about this site.
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Contact
Mr Stuart Corbett
Defence Science and Technology Laboratory
CBDE Porton, Porton Down, Salisbury, Wiltshire, SP4 0JQ
sjcorbett@dstl.gov.uk
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