[1]洪婷,白世彪,王建,等.利用树轮重建九房山滑坡活动年份[J].山地学报,2012,(01):57.
　HONG Ting,BAI Shibiao,WANG Jian,et al.Reconstruct the Activity Years of Jiufangshan Landslide by Means of Treerings[J].Mountain Research,2012,(01):57.
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利用树轮重建九房山滑坡活动年份()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2012年01期
页码:
57
栏目:
山地学报
出版日期:
2012-01-01

文章信息/Info

Title:
Reconstruct the Activity Years of Jiufangshan Landslide by Means of Treerings
作者:
洪婷;白世彪;王建;张志刚;
1.南京师范大学地理科学学院，江苏 南京 210046；
2.南京师范大学虚拟地理环境教育部重点实验室，江苏 南京 210046
Author(s):
HONG Ting; BAI Shibiao; WANG Jian; ZHANG Zhigang
1.School of Geography Science，Nanjing Normal University，Nanjing 210046，China；
2.Key Laboratory of Virtual Geographical Environment (Ministry of Education)，Nanjing Normal University，Nanjing 210046，China
关键词:
树木年轮; 九房山滑坡; 灾害; 武都
Keywords:
Treering analysis; Jiufangshan landslide; disaster; Wudu District
分类号:
P642.22
文献标志码:
A
摘要:
理解地貌过程以及认识过去灾害发生的频率,是自然灾害风险评价的重要任务。树木年轮由于其具有定年准确、连续性强、分辨率高和易于复本等特点,近年来被用到恢复过去灾害发生的时间。随着滑坡、泥石流等山地地质灾害性事件发生频率的增加,地质灾害风险管理和评价受到了越来越多的关注。在样品量足够的前提下,树木年轮方法可以精确地确定滑坡事件发生的年份。以甘肃南部武都区外纳乡的九房山滑坡为研究对象,利用树木年轮分析方法对该滑坡的灾害事件发生的时间进行了初步的研究。结果显示:1.树木年轮样品在1980—1982年,1984—1987年以及1991-1993年都出现了年轮宽度迅速减小或者迅速增加的现象。本研究将1980...
Abstract:
The understanding of geomorphic processes and knowledge of past events are important elements for the assessment of natural hazards. With the frequencies of landslides，debrisflows and other geological disaster events increased in recent years，risk management and evaluation of geological disasters received more and more attention. Treering data is widely used in the researches of disasters recovery of the past in recent years，which has the characteristics of accurate dating，strong continuity，high resolution and easy to copy. Treering method can precisely determine the time of landslide happened using enough amounts of samples. The study area is Jiufangshan landslide，which is located in Wudu District of south of Gansu Province in Northwestern China. The Jiufangshan landslide reactivation periods are analyzed using treering analysis method. The results show that：①There is an abrupt growth reduction or growth recovery in the year 1980—1982，1984—1987 and 1991—1993 in the treering samples. So it was determined as landslide years in 1980—1982，1984—1987 and 1991—1993 in this study，in which the 1992 and 1993 landslides are in coincidence with the local archive data. Heavy precipitation，seismic impact and unreasonable irrigation activities may caused the landslide reactivation，while precipitation plays an important role in the landslide reactivation. ②The eccentric wood and false rings appeared in the treering samples are evidences of landslide events，these also indicate that the growth environment of trees is changed by the landslide activity.

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备注/Memo

备注/Memo:
收稿日期(Received date)：2011-12-18；改回日期(Accepted) : 2012-01-05。
基金项目（Foundation item）：国家自然科学基金“白龙江舟曲-武都段滑坡灾害时空综合预测研究”(No. 40801212)。 \[National Natural Science Foundation of China, “The comprehensive spatial-temporal prediction study of the landslide hazards in Zhouqu-Wudu section along the Bailong River Basin” (No. 40801212).\]
作者简介（Biography）：洪婷（1988-），女，山东省阳谷县人，硕士研究生，主要从事树轮生态学和树轮重建灾害方面的相关研究。\[Hong Ting (1988-), female, Yanggu Shandong, Master; majoring in dendroecology and the reconstruct of natural hazard by the means of treering.\] E-mail: hongting880529@sina.com
更新日期/Last Update: 1900-01-01