Whole-tree tracheid property maps for loblolly pine at different ages

Whole-tree tracheid property maps for loblolly pine at different ages
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不同树龄火炬松全树管胞特性图

DOI:
10.1007/s00226-020-01180-7
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发表时间:
2020
影响因子:
3.4
通讯作者:
Dahlen, Joseph
Dahlen, Joseph
中科院分区:
材料科学2区
文献类型:
--
作者:
Schimleck, Laurence R.;Antony, Finto;Mora, Christian;Dahlen, Joseph

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使用Akima插值方法绘制的地图代表13年和22年树龄树木的平均数据,用于比较火炬松树内变异的模式。(火炬松)管胞性质:粗度(C)、比表面积(S)、径向(R)和切向(T)直径以及壁厚(w)。SilviScan校准的近红外(NIR)光谱为C(Rc2= 0.85,Rp2 = 0.85),S(Rc2= 0.83,Rp2 = 0.76),w(Rc 2 = 0.89,Rp 2 = 0.93)模型具有非常好的校正/预测统计,而T和R直径的模型则中等C、S和w图与P. taeda和表示性能在所有高度处径向增加。Tdiameter图与微纤丝角图相似,除了Tdiameter随高度径向增加,而微纤丝角随高度径向减少。地图为R直径增加高度,是不同于其他属性的检查;谨慎建议任何解释的基础上theRdiameter地图由于弱统计观察到的近红外模型。两个年龄之间观察到的变化是一致的渐进的性质与成熟。
Maps developed using Akima’s interpolation method, and representing average data for trees aged 13 and 22 years, were used to compare patterns of within-tree variation forPinus taedaL. (loblolly pine) tracheid properties: coarseness (C), specific surface (S), radial (R) and tangential (T) diameter and wall thickness (w). SilviScan-calibrated near-infrared (NIR) spectroscopy provided data for the analysis withC(Rc2= 0.85,Rp2= 0.85),S(Rc2= 0.83,Rp2= 0.76), andw(Rc2= 0.89,Rp2= 0.93) models having very good calibration / prediction statistics, while those forTandRdiameter were moderate (Rc2= 0.79,Rp2= 0.57) and poor (Rc2= 0.64,Rp2= 0.19), respectively.C,S, andwmaps were similar to the density maps forP. taedaand indicate the properties increase radially at all heights. TheTdiameter map was similar to maps reported for microfibril angle except thatTdiameter increased radially and with height whereas microfibril angle decreased radially and with height. The map forRdiameter increased with height and was unlike the other properties examined; caution is recommended regarding any interpretations based on theRdiameter map owing to the weak statistics observed for the NIR model. Changes observed between the two ages are consistent with the asymptotic progression of properties associated with maturation.
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