中文摘要：

Upfreezing 是在冰川周缘的环境的一个重要似地球形状的过程。它是冷气候的一个产品，因此， cryospheric 的重要部分处理。在 Urumqi 河的来源区域基于长期的放观察，这篇文章在 Tianshan 山代表排序的圆和 upfreezing 机制的特征的深入的讨论。在 Urumqi 河的来源区域， upfreezing 的紧张在 25 厘米近的顶以内是最高的表面，当有 3 厘米的一条直径的目标被 upfreezing 最不影响时。以 upfreezing 的紧张与在一样的排序的圆以内的粗糙的碎片有好谷物和边缘的中心之间没有不同差别。关联分析证明温度在 upfreezing 和排序的圆的发展起一个重要作用。排序的圆的长期的放观察表明冰川周缘的地形对地区性的气候变化敏感并且对温度增加快速作出回应最近二十年。提高的 upfreezing 被发现由于增加的土壤潮湿内容。

英文摘要：

Upfreezing is an important geomorphic process in the periglacial environment. It is a product of cold climate and thus an im- portant part of the cryospheric processes. Based on the long-term positioning observations in the source area of the Urumqi River, this article represents an in-depth discussion of the characteristics of sorted circles and upfreezing mechanisms in the Tianshan Mountains. In the source area of the Urumqi River, the intensity of upfreezing is the highest within the top 25 cm near the surface, while targets with a diameter of 3 cm are least affected by upfreezing. There is no distinct difference between the centre with fine grains and the margin with coarse debris within the same sorted circle in terms of the intensity of upfreezing. The correlation analysis demonstrates that temperature plays an important role in upfreezing and the development of sorted circles. A long-time positioning observation of sorted circles reveals that periglacial landforms are sensitive to regional climate change and respond quickly to the temperature increase of the recent two decades. Enhanced upfreezing was found to be due to increased soil moisture content.