搜索结果: 1-3 共查到“农学 sapwood”相关记录3条 . 查询时间(0.062 秒)
Dynamics of heartwood formation and axial and radial distribution of sapwood and heartwood in stems of European larch (Larix decidua Mill.)
sapwood heartwood dynamics of heartwood formation social class of tree position European larch
2015/3/12
The study was an attempt to determine the dynamics of heartwood formation and the radial and axial distribution of sapwood and heartwood in stems of European larch (Larix deciduas Mill.) representing ...
Determination of the number of sapwood annual rings in oak in the region of southern Moravia
sapwood oak annual ring analysis Czech Republic
2015/3/3
The paper deals with the determination of the number of sapwood annual rings in oak (Quercus sp.) in
relation to altitude, locality and stand age. Several different groups of samples were used...
An Investigation on Internal Morphological Proporties of Sapwood and Heartwood of Oriental Spruce [Picea orientalis（L）Link.]
Internal Morphological Proporties Sapwood Heartwood Oriental Spruce
2009/1/23
In this study, sapwood and heartwood samples obtained from Oriental spruce growing naturally only in East Black Sea region were investigated. Trees of 36-44 cm diameter were obtained from the Karahav...