搜索结果: 1-8 共查到“农学 oriental spruce”相关记录8条 . 查询时间(0.031 秒)
Predicting soil erosion in oriental spruce (Picea orientalis (L.) Link.) stands in Eastern black sea region of Turkey
Soil loss tolerance tree line timberline subalpine zone
2011/1/12
Human induced pressures on the natural resources are still in progress and the conservation efforts, too. The need for sufficient knowledge and data for the decision makers is obvious. This study is a...
A distance-independent basal area growth model for oriental spruce (Picea orientalis (l.) Link) growing in mixture with oriental beech (Fagus orientalis Lipsky) in the Artvin region, North-East Turkey
Oriental spruce oriental beech Individual tree basal area growth model mixed species stands
2010/9/10
In this study, we developed an individual tree basal area growth model for oriental spruce (Picea orientalis (L.) Link) growing in mixture with oriental beech (Fagus orientalis Lipsky) in the Artvin, ...
Effects of forest roads on foliage discoloration of oriental spruce by Ips typographus (L.)
Ips typographus Picea orientalis forest roads foliage discoloration forest fragmentation
2010/9/10
The aim of the study was to investigate the effects of forest roads on foliage discoloration levels of oriental spruce Picea orientalis (L.) Link by Ips typographus (L.), considering location, ground ...
The impacts of timber harvesting techniques on residual trees, seedlings, and timber products in natural oriental spruce forests
Logging manpower skidder skyline harvesting damage
2010/9/10
The impacts of three timber harvesting techniques (manpower, skidder, and skyline) on residual trees, seedlings, and timber products were investigated in natural oriental spruce stands in Artvin, Turk...
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...
Influence of Stem Height on Internal Morphological Properties of Oriental Spruce [Picea orientalis（L.）Link.] Wood
Stem Height Internal Morphological Properties Oriental Spruce [Picea orientalis（L.）Link.] Wood
2009/1/16
In this study, the influence of stem height on the internal morphological properties of the Oriental spruce [Picea orientalis (L.) Link.] were investigated. Sample trees of 36-44 cm in diameter and 1...
Dendrochronology of the Oriental Spruce（Picea orientalis（L.）Link）in Turkey
Oriental Spruce（Picea orientalis（L.）Link） Turkey
2009/1/16
This study attempted to describe the variations in the annual growth of Oriental spruce and to give a mean annual ring curve using annual rings. Another purpose was to determine the standardized chro...
Soil Respiration in Young and Old Oriental Spruce Stands and in Adjacent Grasslands in Artvin, Turkey
soil biological activity oriental spruce grasslands C cycle
2009/1/13
Soil respiration is a good indicator of soil quality. In this study, the influence of species type and sampling time on soil respiration in young and old oriental spruce (Picea orientalis (L.) Link.)...