Patchy permafrost is the edge of vast and continuous permafrost zone which is degrading, it is discontinuous horizontally.

岛状多年冻土是大片连续多年冻土退化的边缘地带，具有平面上不连续特点。

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However, under the same climate scenario, no significant degradation was found in the scale of 30 years in the continuous permafrost zone, despite distinct ground temperature rising there.

相同气候背景下，多年冻土腹部地温有升高，但在30年尺度上不会发生明显的退化。

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