Patchy permafrost is the edge of vast and continuouspermafrostzone 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 continuouspermafrostzone, despite distinct ground temperature rising there.