PAN style="COLOR: black; FONT-SIZE: 14pt; mso-font-kerning: 18.0pt; mso-bidi-font-weight: bold" lang=EN-US>Paleoenviromental and Paleoclimatic Changes inpace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />place w:st="on"> Xingkai place w:st="on">pe w:st="on">Lakepe>place>place> Inferred from Stable Carbon and Nitrogen Isotopes of Bulk Organic Matter since pt; mso-font-kerning: 18.0pt; mso-bidi-font-weight: bold" lang=EN-US>28 ka B.P.pt" lang=EN-US>pace prefix = o ns = "urn:schemas-microsoft-com:office:office" />p>p>
摘要
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal>pace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />pt" lang=EN-US>Xingkaipt" lang=EN-US> pe w:st="on">Lakepe>, a transboundary lake by China and Russia, is the largest freshwater lake in place w:st="on">Northeast Asiaplace>. A pace="True" Negative="False" NumberType="1" TCSC="0" w:st="on">269 m long continuous sediment core, approximately 28 ka-old at the bottom, from Xingkai pe w:st="on">Lakepe>, has been analyzed first in place w:st="on">Chinaplace> for the stable isotopes of carbon, nitrogen, TOC and C/N ratios, in order to study the paleoclimatic and paleoenviromental changes in the area. The result showed that sedimentary organic carbon in cold-dry periods is more enriched in pace="False" Negative="False" NumberType="1" TCSC="0" w:st="on">13C than that in warm-wet periods. The authors reconstruct the evolution sequpt" lang=EN-US>ence of paleoclimate in place w:st="on">Xingkai pe w:st="on">Lakepe>place> region.pace prefix = o ns = "urn:schemas-microsoft-com:office:office" />p>p>