1 The introduction of black walnut(Juglans nigra)from North America to Europe Black walnut is a Juglans tree native to the North America plains.It features a tall and dense canopy up to 20 or 30 m high.The timber is d...1 The introduction of black walnut(Juglans nigra)from North America to Europe Black walnut is a Juglans tree native to the North America plains.It features a tall and dense canopy up to 20 or 30 m high.The timber is dense and hard,making it suitable for woodworks.The natural dark color and beautiful grain are usually preserved in woodworks to reveal its unique chocolate hue.展开更多
基金financed by the grant from the National Social Science Fund of China(No.18BG126)。
文摘1 The introduction of black walnut(Juglans nigra)from North America to Europe Black walnut is a Juglans tree native to the North America plains.It features a tall and dense canopy up to 20 or 30 m high.The timber is dense and hard,making it suitable for woodworks.The natural dark color and beautiful grain are usually preserved in woodworks to reveal its unique chocolate hue.
