臺灣國際科展

Montioring of Cryogenic Features along Roads in Megino-Kangalassky Region,Yakutia

科展類別
臺灣國際科展
屆次
2004年
科別
生物化學
得獎情形
第三名
學校名稱
Maya Gymnasia
指導老師
Judy Gadicke
作者
Katerina Sleptsova
關鍵字
Montioring of Cryogenic Features

摘要或動機

One of the anthropogenic influences on the permafrost landscapes is deforestation and breach of the surface cover at the road constructions. On these areas a development of various cryogenic and postcryogenic processes and features (thermosubsidence, knobs (bilars, baydjarakhs), ravines, small lakes - djyodje) is being observed. Such features can be observed on the territory of Megino- Kangalassky Region, which is situated in the Central Yakutia, as well. During the period from 1998 to 2003 the author carried out monitoring studies of cryogenic features along three roads. Ten areas measuring twenty square metres were put in all. During 6 years of research about 1520 measurements of cryogenic formations parameters were made. Based on the results, it is concluded that elimination of the shadowing effect by trees and removal of the surface cover along the roads have caused thawing of shallow-lying ice wedges, as well as development of various cryogenic processes and features. In this paper, the author presents the basic technologies which are used in road construction in permafrost areas and, based on the research results, proposes a set of measures for rehabilitation of the roadside areas.


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