Timber production

Data presented is increase in stem growth of Scots Pine (Pinus sylvestris) between repeated measurements of stem diameter. Production is expressed as stem volume increment (m3) per ha over the experimental period. Besides data on timber production the file contain data on site id, latitude of the experimental sites, treatment, time (years) since last thinning operation and latitude (degrees) north of the southernmost site. Treatments were: Thinning (Th), No thinning (NoTh), Nitrogen fertilization (N), Thinning+ nitrogen fertilization (Th+N), and Thinning+N and P fertilization (Th+N+P).