Height growth patterns of Scots pine and Norway spruce in the coastal areas of western Finland.

摘要: Abstract Stem analysis data of 46 Scots pine ( Pinus sylvestris L.) and 38 Norway spruce Picea abies (L.) Karst.) trees was used to construct height curves for naturally regenerated cultivated from the coastal areas western Finland. The were compared with each other, models 28 off coast general site index in southern growth pattern exhibited a strong stagnation over age indexes. Spruce development dominated by slow early followed an increase increment curves. There large variation patterns variable needed functions order make reliable predictions. Even simple provided relatively good predictions pine. It argued that wind, temperature moisture regimes caused these differences between at inner parts soil provides poor rooting conditions this increases trees’ susceptibility climatic impact. within area could partly be explained location relation sea stoniness pine, humus layer thickness spruce. number years had grown breast as predictor, which very well. This did not describe causal relationships, since it depends both on original status management intensity. improve when such can is available. speed correlated C / N ratio stands. indicated may change along ecological gradient dry, stony moraines thick humus, moist, dense sorted soils quality humus. use variables predicting difficult, they usually are time dependent affected stand characteristics management.