§ Mr. William Rossasked the Secretary of State for Northern Ireland whether any investigations have been carried out into the effect afforestation of upland areas has had on the discharge rates and the minimum flow of rivers and streams draining the afforested areas.
§ Mr. Adam ButlerNo specific investigations have been carried out. A long-term experiment on the effect of afforestation on total run-off was carried out in the 1950s but the results were inconclusive.