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

泥炭藓泥炭样品获自瑞典的Lyngmossen。将它们挤压以获得SW样品，并进一步蒸馏以获得DW。分析SW和DW样品的3 T浓度、2D/1H和18 O/16 O。通过对垂直剖面数据的详细讨论，得出以下结论：在浅层，SW是典型的泥炭藓组织保存水;在浅层，冻结和蒸发过程分别影响SW和DW的同位素组成;在深层，腐殖化作用和吸附作用影响SW和DW的同位素组成，其中DW的吸附作用更为重要。结论是，从水中提取过去的温度和湿度信息是不可能的，但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.