Exploration for a new paleoclimate proxy using fossil water in Sphagnum peat layers

泥炭泥炭样品取自瑞典林格莫森。挤压得到SW样品，进一步蒸馏得到DW。对SW和DW样品进行3T浓度、2D/1H和18O/16O分析。通过对资料垂向剖面的详细讨论，得出结论：浅层SW为典型的水藻组织保留水；在浅层，冻结过程和蒸发过程分别影响西南偏南和西南偏南的同位素组成；在深层中，腐殖化和吸附作用同时影响水、土的作用，其中吸附作用在水中更为重要。从水体中提取过去的温度和湿度信息是不可能的，但是SW的同位素数据可能具有气候信息，因为腐殖化程度取决于第一埋藏阶段的气候。

Sphagnum peat samples were obtained from Lyngmossen, Sweden. They were squeezed to obtain SW sample and were further distilled to obtain DW. The SW and DW samples were analyzed for 3T concentration, 2D/1H and 18O/16O. After detailed discussion on the vertical profiles of the data, we concluded:SW in the shallow layer is typical water retained by the sphagnum tissue; in the shallow layer, freezing and evaporation processes affect the isotopic composition of SW and DW, respectively; in the deep layer, humification and adsorption affect that of both SW and DW with adsorption being more important in DW. It is concluded that the extraction of information on both temperature and humidity of the past from water is impossible, but that the isotopic data of SW may possess the information of climate, as the extent of humification depends on climate during the first burial stage.