[1]张建奇,郄佳志,张 永*.青海云杉创伤树脂道分布调查[J].山地学报,2020,(5):710-716.[doi:10.16089/j.cnki.1008-2786.000548]
　ZHANG Jianqi,QIE Jiazhi,ZHANG Yong*.Investigation of the Distribution of Traumatic Resin Ducts in Picea crassifolia[J].Mountain Research,2020,(5):710-716.[doi:10.16089/j.cnki.1008-2786.000548]
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青海云杉创伤树脂道分布调查
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2020年第5期
页码:
710-716
栏目:
出版日期:
2020-11-10

文章信息/Info

Title:
Investigation of the Distribution of Traumatic Resin Ducts in Picea crassifolia
文章编号:
1008-2786-(2020)5-710-07
作者:
张建奇1; 郄佳志2; 3; 张 永2*
1.甘肃祁连山国家级自然保护区管理局,甘肃 张掖 734000; 2.中国科学院地理科学与资源研究所 中国科学院陆地表层格局与模拟重点实验室,北京 100101; 3.中国科学院大学,北京 100049
Author(s):
ZHANG Jianqi1;  QIE Jiazhi2; 3;  ZHANG Yong2*
1.Gansu Qilian Mountain National Nature Reserve Administration, Zhangye 734000, Gansu, China; 2. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China; 3.University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
创伤树脂道;  祁连县;  山地灾害;  青海云杉
Keywords:
traumatic resin ducts;  Qilian county;  mountain hazards;  Picea crassifolia
分类号:
P942
DOI:
10.16089/j.cnki.1008-2786.000548
文献标志码:
A
摘要:
创伤树脂道作为树轮地貌学方法中具有季节分辨率的干扰事件指标,在国际上被广泛地应用于山地灾害的研究之中。我国是山地灾害高发的国家,树轮地貌学在山地灾害的研究方面潜力巨大,但目前还没有开展创伤树脂道的相关研究工作。本研究在青海省祁连县一样点内选取带有明显伤疤的青海云杉,采集树轮样芯,利用统计分析和对比研究的方法,调查了伤疤周边不同位置处创伤树脂道的分布特征。研究结果发现:山地灾害造成的伤害会诱发青海云杉产生创伤树脂道,距离伤疤左侧、右侧或上部10 cm和20 cm位置处创伤树脂道占绝大多数,而伤疤相反一侧响应干扰事件不明显。山地灾害事件发生后,伤疤上部形成的创伤树脂道明显要多于左侧和右侧,伤疤上部20 cm位置处创伤树脂道出现频率最高,是适合采集干扰信号的有利位置。依据树轮地貌学工作大样本量的采样要求,在无法大量采集树盘的情况下,如何利用生长锥合理高效的获取有价值的树芯样品成为一个重要的问题,本研究将为野外采样工作提供参考信息,有助于推动树轮地貌学方法在我国山地灾害研究中的应用。
Abstract:
As a significant indicator of disturbing incident in dendrogeomorphology, Traumatic Resin Duct(TRD)has been world-widely used in the research of mountain geohazards because of its physical property of seasonal resolution. China is a country with high incidences of mountain geohazards. Although dendrogeomorphology has great prospect for the research of mountain disasters, there has not yet works to be known related to TRD at present in China. In this study, Picea crassifolia with discernible scars were selected for investigation of TRD at a sampling site of Qilian County, Qinghai Province, China. It collected samples of tree ring cores and then used statistical analysis as well as comparative method to explore the distribution characteristics of TRD at different positions around scars. The results show that the damages in Picea crassifolia caused by geohazard incidents produced TRD. Regardless of the left, right or upper part, TRDs in core samples at 10 cm and 20 cm away from a scar accounted for absolute majority, whereas the opposite side of the scar did not respond to interference events evidently. After a session of geohazards hitting trunks, there were obviously more TRDs formed on the upper part of a scar than on the left and right side. TRDs at the upper 20 cm of a scar had the highest occurrence, which is a favorable position for collecting interference signals. Dendrogeomorphology requires large sample size. In the case that a large quantity of tree disks cannot be collected, how to use growth cones to obtain valuable tree core samples reasonably and efficiently, which has become a challenging issue in Dendrogeomorphology. This study provides strong reference for field sampling work, and will contribute to promoting the application of dendrogeomorphology in mountain geohazard research in China.

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备注/Memo

备注/Memo:
收稿日期(Received date):2019-06-22; 改回日期(Accepted date):2020-09-16
基金项目(Foundation item):国家自然科学基金面上项目(41977392, 41471087)。 [National Natural Science Foundation of China, General Program(41977392, 41471087)]
作者简介(Biography):张建奇(1972-),男,高级工程师,主要研究方向:森林资源保护与管理。[ZHANG Jianqi(1972-),male,senior engineer,research on protection and management of forest resources.] E-mail: 470382787@qq.com
*通讯作者(Corresponding author):张永(1979-),男,副研究员,主要研究方向:气候与环境变化。[ZHANG Yong(1979-),male,associate professor, research on climate and environmental change.] E-mail: zhangyong@igsnrr.ac.cn
更新日期/Last Update: 2020-09-30