搜索结果: 1-3 共查到“林业工程 Morphological”相关记录3条 . 查询时间(0.093 秒)
Attempt to define morphological parameters enabling sex determination of Ips typographus (Linaeus, 1758) (Coleoptera: Curculionidae: Scolytinae) using PCA and CLU
spruce bark beetle principal components analysis cluster analysis
2015/5/5
There are only two known methods for determining the sex of Ips typographus (L.) – dissection that cannot be used with live beetles and by distinguishing between the density of the hairs on the head, ...
Morphological analysis of pubescent oak (Quercus pubescens Willd.) in Slovenia
Quercus pubescens Willd. Quercus virgiliana (Ten.) Ten. morphology leaf fruit
2009/11/27
The paper presents the attempt of its authors to evaluate the morphological variability of pubescent oak (Quercus pubescens Willd.) in Slovenia. Variability is a result of adaptation of this species t...
Morphological characteristics and productivity of skidder ECOTRAC 120V
skidder ECOTRAC 120V morphological analysis timber skidding daily output unit cost
2009/2/7
This paper presents the results of morphological analysis of the Croatian skidder ECOTRAC 120V, as well as the research of its productivity features in timber skidding from hilly terrain after prepa...