搜索结果: 1-5 共查到“森林保护学 evaluation”相关记录5条 . 查询时间(0.153 秒)
The authors elaborated a new complex methodical approach to the evaluation of necrotic disease of beeches. They used two evaluation scales: a scale for the evaluation of stems and a scale for the eval...
Evaluation of tree condition and tree safety assessment procedures in beetle-killed and fire-damaged lodgepole pine stands in central interior British Columbia
danger trees lodgepole pine mountain pine beetle Sub-Boreal Spruce zone tree condition tree damage wildfire worker safety
2010/8/31
This study quantified characteristics related to tree condition and deterioration in stands affected by the mountain pine beetle (MPB, Dendroctonus ponderosae) or wildfire. The stands evaluated were r...
The Effect of Forest Cutting on Flow Duration Curve of Mountainous Small Watershed:Evaluation of the Influence of Vegetation on Inter-watershed Variation in Flow Duration Curve
change in water yield flow duration curve forest cutting Fukuroyamasawa watershed paired watershed method
2009/8/24
We used the paired-watershed method to analyze changes in the flow duration curve after forest clear-cutting in the Fukuroyamasawa Experimental Watershed (35°12′ N, 140°06′ E) in University Forest, Ch...
Mechanical Evaluation of the Japanese Larch for Wind Damage
tree pulling angle of inclination diameter at breast height maximum resistive moment mode of failure
2009/8/21
To evaluate the mechanical stability of the Japanese larch (Larix kaempferi Carr) against wind loading, tree-pulling experiments were conducted in Tokachi, Hokkaido. The Japanese larch forests of this...
Evaluation of a mature lodgepole pine stand’s resistance to the current mountain pine beetle infestation after nitrogen fertilization
lodgepole pine mountain pine beetle nitrogen fertilization Southern Interior Forest Region
2009/2/6
Research is currently under way in the Southern Interior Forest Region to determine whether nitrogen fertilization can be used to increase mature lodgepole pine trees?natural defences against the moun...