地理研究

地理研究 ›› 1997, Vol. 16 ›› Issue (1): 92-97.doi: 10.11821/yj1997010012

• 论文 • 上一篇    下一篇

长白山全新世以来的火山喷发活动与森林火灾研究

崔钟燮1, 张三焕2, 田景2   

  1. 1. 延边朝鲜族自治州地震办公室, 延吉133001;
    2. 延边大学地理系, 延吉133002
  • 收稿日期:1994-12-05 修回日期:1995-10-12 出版日期:1997-03-15 发布日期:1997-03-15

THE STUDY ON VOLCANIC ERUPTION AND FOREST CONFLAGRATION SINCE HOLOCENE QUATERNARY IN CHANGBAI MT.

Cui Zhongxie1, Zhang Sanhuan2, Tian Jing2   

  1. 1. Earthquake Station Yanbian, Yannji 133001;
    2. Geography Department Yanbian University, Yanji 133002
  • Received:1994-12-05 Revised:1995-10-12 Online:1997-03-15 Published:1997-03-15

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13 | 3

摘要： 采用同位素年代测定等方法,探讨了长白山一万年以来火山活动的期次、规模及森林火灾。

关键词: 长白山火山喷发, 全新世, 炭化木, 森林火灾

Abstract: The features of volcanic movement and volcanic clastic rocks has been illustrated, and by measuring the carbonized wood and by the periodical division of volcanic eruption since Holocene Quaternary, some scientific basis for studying volcanic calamities in Changbai Mt. has been provided in this paper. By the measure of carbonized wood found in volcanic scarp, it can be divided into six periods of eruptions, that is, Bingchang period (7 800 Y. ago), Yuanchi period (6440 Y. ago), Erdaobainhe period (3 450 Y. ago). Xiaoshahe period (1 400 Y. ago), Naitoushan period (1 000 Y. ago) and Tianchi period.90-300 Y. ago). Up to now it can be said that the examination of carbonized wood is a good method for researching forest fire caused by volcanic eruption. With this method it can be seen that there were three times of big eruptions in Changbai Mt. since Holocene Quaternary, which were in Yuanchi period, Xiaoshahe period and Naitoushan period. The biggest one happened in Naitoushan period, with fired area of 70km2 and disforested woods of 2.1 miillion m3. From the recent data of Tianchi volcano, it is indicated that the movement of earth crust is still active and strong. So it should be considered that the Changbai Mt. is not a "dead volcano", but a potential "active volcano".

Key words: volcanic eruption of changbai Mt., holocene quaternary, carbonized wood, forest conflagration

PACS: 

  • P317