FEM growth and yield data monocultures - White willow

The current database is part of the FEM growth and yield database, a collection of growth and yield data from even-aged monocultures (douglas fir, common oak, poplar, Japanese...本数据库隶属于FEM生长与收获数据库（FEM growth and yield database），该数据集汇集了同龄纯林的生长与收获数据，涉及的树种包括花旗松（douglas fir）、普通栎（common oak）、杨树以及日本[原文未完整表述的树种]。