[1]王 锐a,b,马 超a,等.基于树木地貌法重建崩塌历史事件——以川东华蓥山石林为例[J].山地学报,2020,(1):132-141.[doi:10.16089/j.cnki.1008-2786.000497]
 WANG Ruia,b,MA Chaoa,et al.Reconstruction of Rockfall Activity Based on Dendrogemorphological Method:A Case Study of Huaying Mountain in Eastern Sichuan, China[J].Mountain Research,2020,(1):132-141.[doi:10.16089/j.cnki.1008-2786.000497]
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基于树木地貌法重建崩塌历史事件——以川东华蓥山石林为例()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2020年第1期
页码:
132-141
栏目:
山地技术
出版日期:
2020-02-01

文章信息/Info

Title:
Reconstruction of Rockfall Activity Based on Dendrogemorphological Method:A Case Study of Huaying Mountain in Eastern Sichuan, China
文章编号:
1008-2786-(2020)1-132-10
作者:
王 锐ab马 超ab*王云琦ab王玉杰ab
北京林业大学 水土保持学院 a.重庆三峡库区森林生态系统教育部野外科学观测研究站; b.重庆缙云山三峡库区森林生态系统国家定位观测研究站; 100083,北京
Author(s):
WANG RuiabMA Chaoab*WANG YunqiabWANG Yujieab
a. Three-gorges area(Chongqing)Forest Ecosystem Research Station of Ministry of Education, School of Soil and Water Conservation; b. Chongqing Jinyun Forest Eco-system Research Station, School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
关键词:
崩塌滚石 树木地貌法 华蓥山
Keywords:
rockfall dendrochronological method Huaying mountain
分类号:
P642
DOI:
10.16089/j.cnki.1008-2786.000497
文献标志码:
A
摘要:
了解崩塌活动史与区域气候变化之间的关系对于掌握区域山地灾害形成规律,预测未来发展趋势具有非常重要的作用。利用树木地貌法可以准确掌握山地灾害发生频率,并为定量分析气候变化对山地灾害发生发展趋势提供支撑。本文以川东华蓥山石林景区一大型崩塌为研究对象,通过杉木树木年轮、降水和气温数据对该崩塌活动时间进行分析。结果表明:该崩塌可能共有四个活动年份,2015年为大规模活动年份,2008年、2012年和2016年为小规模活动年份,崩塌活动的季节主要集中在早材期间(4月—9月)。基于滚石冲击树干产生的愈伤组织和标准木年轮对比表明:树木在受到滚石冲击后,都表现为生长抑制,且树木年轮宽度要滞后滚石活动1年。参考树木与干扰树木年轮宽度和月降雨量没有相关性,但干扰树木年轮与月平均气温(4月—9月)呈负相关关系。本研究结果可以为研究区内山地灾害活动史与气候变化关系提供支撑,尤其是为研究区域降雨诱发的崩塌活动规律提供借鉴。
Abstract:
The effect of climate change on rock avalanche is crucial for understanding the formation conditions and evolution of regional mountain hazard and helpful for the forecasting ad predication work. Dendrogeomorphology has great potentials in reconstruction of past landslides,earthquakes and debris flows. Trees are widely distributed and will not migrate, so tree ring records play an important role in the study of geomorphic processes. We can date the historical events of mountain hazards in the past few years according to the reaction of tree ring to the activity of r mountain hazards by dendrochronological method. Tree ring-based method(Dendrogemorphological method)reconstruction accurately elucidates the frequency of mountain hazards and reveals how the mountain hazards evolve in response to climate change, while few studies were documented in China. This work reconstructed a rock avalanche in Huaying Mountain, eastern Sichuan province, China, and analyzed the correlation between the occurrence with climate conditions. The results revealed that most of the rockfalls occurred in the year of 2015 and some of them occurred in the year of 2008, 2012, and 2016 respectively. Furthermore, most rockfall events concentrated in the earlywood season(from April to September). Comparison the location of callus in impacted scars on tree trunks and the tree rings of normal wood revealed that the rockfall impaction would decrease the tree rings. The tree rings decrease will delay one year as the impact elapsed. No significate correlation was found between the monthly precipitation and tree rings of normal wood and disturbed wood. However, the tree rings of distrusted wood are negatively related to the mean monthly temperature. The result of this work is helpful for the knowledge about the effect of climate change on the occurrence of mountain hazards and particularly useful for the predication of rainfall-induced avalanche in the study area.

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备注/Memo

备注/Memo:
收稿日期(Received date):2019-03-04; 改回日期(Accepted data):2019-11-28
基金项目(Foundation item):国家重点研发计划(2017YFC0505602)。[National Key Research and Development Project(2017YFC0505602)]
作者简介(Biography):王锐(1994-),女,硕士研究生。主要研究方向:树木年代学。[WANG Rui(1994-),born in Yuncheng,Shanxi province,M.Sc. candidate,research on dendrochronology] E-mail:wangrui@bjfu.edu.cn
*通讯作者(Corresponding author):马超(1986-),男,副教授,主要研究方向:植被与山地灾害。[MA Chao(1986-), male, associate professor, Ph.D. research on vegetation and mountain hazards] E-mail:sanguoxumei@163.com
更新日期/Last Update: 2020-01-30