CAJ | 학술논문

对林龄为25 a的南酸枣[Choerospondias axillaris (Roxb. ) Burtt et Hill]纯林、南酸枣-马尾松(Pinus massoniana Lamb. )混交林和南酸枣-杉木[Cunninghamia lanceolata (Lamb. ) Hook. ]混交林中南酸枣木材的解剖特性进行了比较分析.测定结果表明,在25 a的树龄内,南酸枣-马尾松混交林、南酸枣-杉木混交林和南酸枣纯林中南酸枣木材纤维的长度分别为0.843～1.401、0.858～1.489和0.873～1.347 mm,宽度分别为19.28～23.58、19.34～22.34和19.76～25.26 μm,长宽比分别为39.70～62.04、39.20～63.96和40.60～59.34;随树龄的增加,纯林和混交林中南酸枣木材纤维的长度、宽度及长宽比均逐渐增加,且不同林分间的差异逐渐达到显著水平,并以南酸枣-杉木混交林中南酸枣木材纤维的长度和长宽比最大、宽度最小.3种林分中南酸枣木材的导管组织比量、纤维组织比量和木射线组织比量分别为16.1%～16.7%、64.7%～65.2%和12.9%～13.4%,以南酸枣-杉木混交林中南酸枣木材导管组织比量和纤维组织比量最大,但差异均不显著;仅纯林的木材轴向薄壁组织比量(5.8%)显著高于混交林(5.1%和5.2%).随树龄的增加,3种林分中南酸枣木材微纤丝角均逐渐减小,南酸枣-马尾松混交林、南酸枣-杉木混交林和南酸枣纯林中南酸枣木材微纤丝角分别为23.33°～16.82°、 23.20°～16.36°和23.34°～17.41°, 且仅在树龄16～25 a阶段,混交林中的南酸枣木材微纤丝角显著小于纯林, 其中又以南酸枣-杉木混交林中的南酸枣木材微纤丝角最小.研究结果显示,南酸枣-杉木混交林中南酸枣木材的解剖特性总体上最优,在南酸枣木材品质定向培育过程中宜选择杉木作为伴生树种.
대림령위25 a적남산조[Choerospondias axillaris (Roxb. ) Burtt et Hill]순림、남산조-마미송(Pinus massoniana Lamb. )혼교림화남산조-삼목[Cunninghamia lanceolata (Lamb. ) Hook. ]혼교림중남산조목재적해부특성진행료비교분석.측정결과표명,재25 a적수령내,남산조-마미송혼교림、남산조-삼목혼교림화남산조순림중남산조목재섬유적장도분별위0.843～1.401、0.858～1.489화0.873～1.347 mm,관도분별위19.28～23.58、19.34～22.34화19.76～25.26 μm,장관비분별위39.70～62.04、39.20～63.96화40.60～59.34;수수령적증가,순림화혼교림중남산조목재섬유적장도、관도급장관비균축점증가,차불동림분간적차이축점체도현저수평,병이남산조-삼목혼교림중남산조목재섬유적장도화장관비최대、관도최소.3충림분중남산조목재적도관조직비량、섬유조직비량화목사선조직비량분별위16.1%～16.7%、64.7%～65.2%화12.9%～13.4%,이남산조-삼목혼교림중남산조목재도관조직비량화섬유조직비량최대,단차이균불현저;부순림적목재축향박벽조직비량(5.8%)현저고우혼교림(5.1%화5.2%).수수령적증가,3충림분중남산조목재미섬사각균축점감소,남산조-마미송혼교림、남산조-삼목혼교림화남산조순림중남산조목재미섬사각분별위23.33°～16.82°、 23.20°～16.36°화23.34°～17.41°, 차부재수령16～25 a계단,혼교림중적남산조목재미섬사각현저소우순림, 기중우이남산조-삼목혼교림중적남산조목재미섬사각최소.연구결과현시,남산조-삼목혼교림중남산조목재적해부특성총체상최우,재남산조목재품질정향배육과정중의선택삼목작위반생수충.
Anatomical characteristics of Choerospondias axillaris (Roxb. ) Burtt et Hill wood within 25 a in C. axillaris pure forest, C. axillaris-Pinus massoniana Lamb. mixed forest and C. axillaris-Cunninghamia lanceolata (Lamb. ) Hook. mixed forest were comparatively analyzed. The determination results show that in 25 a tree age, the fiber length of C. axillaris wood in C. axillaris-P. massoniana mixed forest, C. axillaris-C. lanceolata mixed forest and C. axillaris pure forest is 0.843-1.401, 0.858-1.489 and 0.873-1.347 mm, the fiber width 19.28-23.58, 19.34-22.34 and 19.76-25.26 μm, the length/width ratio 39.70-62.04, 39.20-63.96 and 40.60-59.34, respectively. As tree age increasing, the length, width and length/width ratio of C. axillaris wood fiber in pure and mixed forests increase gradually, and the difference among different forests reaches significant level gradually, and the length and length/width ratio of C. axillaris wood fiber are the highest and the width is the lowest in C. axillaris-C. lanceolata mixed forest. The proportions of vessel, fiber and wood ray of C. axillaris wood in three forests are 16.1%-16.7%, 64.7%-65.2% and 12.9%-13.4%, respectively. The proportions of vessel and fiber of C. axillaris wood in C. axillaris-C. lanceolata mixed forest are the highest, but the difference is not significant. The axial parenchyma proportion of C. axillaris wood in pure forest (5.8%) is significantly higher than that in mixed forests (5.1% and 5.2%). With tree age increasing, the microfibril angle of C. axillaris wood in three forests decreases gradually, and that in C. axillaris-P. massoniana mixed forest, C. axillaris-C. lanceolata mixed forest and C. axillaris pure forest is 23.33°-16.82°, 23.20°-16.36° and 23.34°-17.41°, respectively. At tree age stage of 16-25 a, the microfibril angle of C. axillaris wood in mixed forests is lower than that in pure forest, and that in C. axillaris-C. lanceolata mixed forest is the lowest. It is suggested that in general, the anatomical characteristics of C. axillaris wood in C. axillaris-C. lanceolata mixed forest are the best, therefore, C. lanceolata is suitable to be used as associated tree species in process of timber culture of C. axillaris wood.