Annual water balances (1983-1995) for the Cwm and Delyn catchments at Llanbrynmair Moor in mid-Wales have been used to quantify the hydrological effects of the land use change in the Cwm from moorland to forestry. Initially. the actual evaporation (precipitation minus streamflow) of the Cwm catchment declined rapidly relative to the Delyn. due to the disruption of the vegetation by pl... https://www.popularfilm.blog/