An examination of species-specific growing space utilization
An examination of species-specific growing space utilization
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DOI：
10.1139/x07-147
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发表时间：
2008-02
影响因子：
2.2
通讯作者：
J. Lhotka;E. Loewenstein
中科院分区：
文献类型：
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作者：
J. Lhotka;E. Loewenstein
对糖枫的大小-密度关系进行了比较，欧洲山毛榉（Fagus sylvatica L.），挪威云杉（Picea abies（L.）喀斯特）、黑松（Pinus contorta Dougl.前大声。变种宽叶黄（Latifolia Engelm.），东部白松（Pinus strobus L.），欧洲赤松（Pinus sylvestris L.），火炬松（Pinus taeda L.），和花旗松（Pseudotsuga menziesii（Mirb.）佛朗哥湾menziesii）。利用森林资源清查数据和现有模型，建立了种别最小立地占用密度（NMCA）和平均最大密度（NAMax）方程。NMCA和NAMax估计被用来比较在一个范围内的林分直径（12-50厘米）的物种生长空间利用率。结果表明，生长空间利用率不同的评价物种和物种差异可能会改变直径范围内的评价。分析还强调，不同物种的空间使用率梯度越来越大。梯度的一端被物种占据，它们维持着...
A comparison is made among the size–density relationships of sugar maple (Acer saccharum Marsh.), European beech (Fagus sylvatica L.), Norway spruce (Picea abies (L.) Karst), lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.), eastern white pine (Pinus strobus L.), Scots pine (Pinus sylvestris L.), loblolly pine (Pinus taeda L.), and Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii). Species-specific minimum density of full site occupancy (NMCA) and average maximum density (NAMax) equations were developed using forest inventory data and existing models. NMCA and NAMax estimates were used to compare species growing space utilization over a range of stand diameters (12–50 cm). Results suggest growing space utilization varies among the evaluated species and that species differences may change over the diameter range evaluated. Analysis also highlights that a growing space usage gradient is present across species. One end of the gradient is occupied by species that maintain...