中国冰冻和冻土灾害严重，对冰冻及冻土采取有效的长期监测，为应对潜在的灾害提供参考信息具有十分重要的意义。
China has very serious disaster of frozen and permafrost, therefore, effective and long-term monitor of frozen and permafrost is significant to provide reference information for potential disaster.
本文的研究材料来源于中国地质科学院矿产资源所承担的“我国陆域永久冻土带天然气水合物资源远景调查”项目。
The samples here come from the project named "Natural Gas Hydrate Resources Prospect Investigation in Domestic Permafrost Area" which was carried out by Institude of Mineral and Resources CAGS.
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