Comparison of biomass production in coppice and single stem woodland management systems on an imperfectly drained gley soil in central Scotland

摘要

A comparison of biomass production from single stems and coppice has been carried out in Lanarkshire, Scotland. The site comprises a noncalcareous grey at 210 m above sea level and has a cool, temperate climate with 1100 mm precipitation. Red alder (Alnus rubra Bong.) and balsam spire poplar (Populus balsamifera var. Michauxii (Henry)× Populus trichocarpa var. Hastata (Dode) Farwell) were grown at 1.0 m spacing as coppice or single stems and at 1.5 m spacing as single stems only. Common osier willow (Salix viminalis L.) was also grown as coppice at 1.0 m spacing. Trees were planted in May 1989 and the coppice was cut back in the winter following planting. High mortality occurred in the red alder following coppicing and this reduced the stocking by 50.