长白山阔叶红松林3个主要树种的非结构性碳储存特征

doi:10.13287/j.1001-9332.201905.001

应用生态学报 ›› 2019, Vol. 30 ›› Issue (5): 1608-1614.doi: 10.13287/j.1001-9332.201905.001

长白山阔叶红松林3个主要树种的非结构性碳储存特征

王晓雨^1,2, 王守乐³, 唐杨², 周旺明², 周莉², 仲庆林⁴, 代力民², 于大炮^2*

¹浙江农林大学暨阳学院, 浙江诸暨 311800;
²中国科学院沈阳应用生态研究所森林生态与管理重点实验室, 沈阳 110016;
³中国科学院新疆生态与地理研究所, 乌鲁木齐 830011;
⁴抚顺市林业发展服务中心, 辽宁抚顺 113006

收稿日期:2019-02-01 修回日期:2019-02-01 出版日期:2019-05-15 发布日期:2019-05-15
通讯作者: E-mail: yudp2003@iae.ac.cn
作者简介:王晓雨,女,1991年生,博士.主要从事树木生理生态和气候变化生态学方面的研究.E-mail: wangxiaoyu12@mails.ucas.ac.cn
基金资助:
国家自然科学基金项目(41571197,41871105)和绍兴330人才项目

Characteristics of non-structural carbohydrate reserves of three dominant tree species in broadleaved Korean pine forest in Changbai Mountain, China.

WANG Xiao-yu^1,2, WANG Shou-le³, TANG Yang², ZHOU Wang-ming², ZHOU Li², ZHONG Qing-lin⁴, DAI Li-min², YU Da-pao^2*

¹Jiyang College of Zhejiang A&F University, Zhuji 311800, Zhejiang, China;
²Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
³Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
⁴Forestry Development Service Center in Fushun, Fushun 113006, Liaoning, China

Received:2019-02-01 Revised:2019-02-01 Online:2019-05-15 Published:2019-05-15
Supported by:
This work was supported by the National Natural Science Foundation of China (41571197, 41871105) and the Shaoxing 330 Overseas Talents Plan.

摘要/Abstract

摘要： 非结构性碳水化合物(NSC,包括可溶性糖和淀粉)作为树木生命代谢的关键物质之一,在树木器官中的储存特征受到了广泛关注,但NSC在器官内部具有不同功能的组织间(韧皮部与木质部)的分配和权衡还不清楚.本研究以长白山阔叶红松林的3个优势树种——红松、水曲柳和紫椴为研究对象,对比分析NSC在根、树干韧皮与木质部中的浓度和分配特征.结果表明: 树木韧皮部和木质部间的NSC浓度差异显著,总体分配趋势为韧皮部以可溶性糖为主,而木质部以淀粉为主.树干外侧(以年轮划分,0～20年)、中段(20～40年)和内侧(>40年)的NSC浓度在不同树种间差异显著,而根中的差异不显著.红松和水曲柳树干韧皮部可溶性总糖浓度显著高于紫椴,在木质部中差异不显著.本研究结果表明,树体内部NSC在韧皮部和木质部上的分配存在明显分异,这与树种的演替阶段及组织的功能进化有关.研究结果对于深入理解温带树木的碳储存特征和分配机理具有参考意义.

Abstract: Non-structural carbohydrates (NSC, including soluble sugars and starch) are key meta-bolites in tree, the storage characteristics of which in tree organs have received extensive attention. It is still unclear how NSC are allocated in the tissues (phloem and xylem) that have different function. In this study, we analyzed the concentration and allocation of NSC in the roots, and in phloem and xylem of the trunk in three dominant species of broadleaved Korean pine forest in the Changbai Mountain, Pinus koraiensis, Fraxinus mandschurica, and Tilia amurensis. The results showed that there was a significant difference in the concentration of NSC between the phloem and xylem. The soluble sugar dominated in the phloem, while starch dominated in the xylem. The concentration of NSC in trunk outside (divided by annual rings, 0-20 years), intermediate (20-40 years) and inner (>40 years) of different tree species was significantly different, but with no difference in the roots. The total soluble sugar concentration in the phloem of P. koraiensis and F. mandschurica was significantly higher than that of T. amurensis, while the difference in xylem was not significant. The results indicated that NSC allocation in the phloem and xylem of the tree had clear tissue differentiation, which might be related to the succession stage of the tree species or the functional evolution of the tissue. These findings would improve our understanding of the carbon storage characteristics and allocation mechanism in temperate trees.

王晓雨, 王守乐, 唐杨, 周旺明, 周莉, 仲庆林, 代力民, 于大炮. 长白山阔叶红松林3个主要树种的非结构性碳储存特征[J]. 应用生态学报, 2019, 30(5): 1608-1614.

WANG Xiao-yu, WANG Shou-le, TANG Yang, ZHOU Wang-ming, ZHOU Li, ZHONG Qing-lin, DAI Li-min, YU Da-pao. Characteristics of non-structural carbohydrate reserves of three dominant tree species in broadleaved Korean pine forest in Changbai Mountain, China.[J]. Chinese Journal of Applied Ecology, 2019, 30(5): 1608-1614.

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长白山阔叶红松林3个主要树种的非结构性碳储存特征

Characteristics of non-structural carbohydrate reserves of three dominant tree species in broadleaved Korean pine forest in Changbai Mountain, China.

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