TY  - ADVS
TI  - Introduction to ecosystems
PY  - 1974///
CY  - Milton Keynes, England
PB  - Open University
KW  - Ecology
KW  - Biological productivity
N1  - The programme examines characteristics of 4 ecosystems.  1. Port Meadow, Oxford - a flood meadow by River Thames - 2. Wytham wood, Berks - a deciduous - 3. Black Moor, near Glossop, Derbyshire - an acid peat moor - 4. a field at the Oxford University Farm - a wheatfield; Bahan rosak (Lupus); Narrator: Irene Ridge
ER  -