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物质平衡是冰川对气候变化最直接的响应,是冰川变化的重要参数.大陆型冰川与海洋型冰川发育在不同的水热环境下,它们对气候变化的响应程度、过程和机理存在很大差异,因此在全球变暖背景下对这两类不同性质冰川物质平衡变化特征及其机理做一全面的对比研究意义重大.以东、西天山的乌鲁木齐河源1号冰川和图尤克苏冰川以及阿尔卑斯山东、中、西部的欣特雷斯冰川、Caresèr冰川和Sarennes冰川为参照冰川,在对比分析这五条参照冰川近60 a来物质平衡变化幅度差异和阶段性差异基础上,对大陆型冰川与海洋型冰川物质平衡变化特征及其机理进行了对比研究.结果表明:在物质平衡阶段性变化上,阿尔卑斯山参照冰川物质平衡变化具有相似的阶段性,而天山和阿尔卑斯山参照冰川之间以及天山内部两条参照冰川之间物质平衡阶段性变化存在很大的差异,可见,无论不同性质冰川还是同一性质的不同冰川,其物质平衡的阶段性变化都可能存在差异,这与不同冰川所处环境水热变化的时间差异有关,而与冰川性质无关;在物质平衡变化幅度上,海洋型冰川变化幅度明显大于大陆型冰川,原因是不同性质冰川发育的水热环境及其对气候变化敏感性差异;在前人对冰川加速消融机理的研究基础上,本文也讨论了大陆型冰川与海洋型冰川物质平衡变化的机理及其异同.
Matter balance is the most direct response of glacier to climate change and is an important parameter of glacier change.The continental glaciers and oceanic glaciers develop in different hydrothermal environments, and their response to climate change, process and mechanism are very different Therefore, under the background of global warming, it is of great significance to conduct a comprehensive comparative study on the characteristics and mechanism of the balance of these two types of glaciers, with the eastern and western Tianshan Mountains including the Urumqi Heyuan No. 1 Glacier and the Tuyuksu Glacier and the Alps The Hinterrace, Caresèr and Sarennes glaciers in Shandong, central and western China are regarded as reference glaciers. Based on a comparative analysis of differences in material balance and phase differences among the five reference glaciers in the past 60 years, the continental glaciers and oceans Glacier mass balance and its mechanism were compared.Results show that: Alpine glacial mass balance has a similar phase change in terms of material balance phase change, while the Tianshan and Alps reference glaciers and within the Tianshan Mountains There are great differences in the phased changes of the material balance between the two reference glaciers. Whether different types of glaciers or different types of glaciers of the same nature may have different phases of material balance, which is related to the time difference of hydrothermal and environmental changes in different glaciers but not to the nature of glaciers. , And the change range of marine glaciers is obviously larger than that of continental glaciers due to the hydrothermal environment with different developmental properties of glaciers and their sensitivity to climate change. On the basis of previous studies on accelerating and ablating glaciers, Mechanism and Similarities and Differences of Matter Balance Change between Glaciers and Marine Glaciers.