Biological Methods for the Assessment of Water Quality. A Symposium presented at the Seventyfifth Annual Meeting Editors: John Cairns, Jr., and K. L. Dickson. American Society of Testing and Materials -Philadelphia, Pa. 19103 (1916 Race Street).: 1973/ Third Printing 1976. ISBN 04–528000-16 US$ 16.25

Biological Monitoring of Water and Efflu

Biological Monitoring of Water and Effluent Quality. A Symposium by the American Society for Testing and Materials, Blacksburg, Va., Nor. 1975, ed. by John Cairns, Jr., K. L. Dickson and G. F. Westlake. ASTM Special Technical Publication 607, 246 pp. Philadelphia: American Society for Testing and Materials 1976. ISBN 04-607000-16. $ 24.25

✍ H. Caspers 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 90 KB

Die Untersuchung des Hubbard Brook-Okosystems, New Hampshire, fuhrte zu einem System-model1 mit der Moglichkeit, Ein-und Ausleitung der Nahrstoffe und damit) das Nahrungsbudget direkt zu messen (,,the small watershed technique"). I m ganzen wird das System bereits iiber 15 Jahre untersucht ; mehr al