青藏高原东部的冻土退化

本从冻土与现代气候关系出发，理论上确定了冻土分区的界限。用剖面图展示出本区不同类型冻土分布代表性高程，并以丰富的资料分析了出露在不同冻土区内的埋藏冻土层，冻土地貌假像，岛状冻土上限的起伏以及融冻地貌，植被变化等诸多现象呈现退化的一致性，得出了“退化是本区多年冻土变化的基本趋势”这一结论。

Permafrost Degeneration in the East of Tibetan Plateau

The zoning boundaries of permafrost are theoretically determined from the relation between permafrost and modern climate in this paper. The boundary elevations are given in a profile. There are many phenomena demonstrating a commom degeneration such as buried frozen soil, pseudo-permafrost landforms variations of patchy permafrost table,multigelation, and vegetation changing in different regions. The important conclusion is that a basic trend of the permafrost changing in the plateau is degeneration.