中文摘要：

脂肪族的 des-A-triterpenes， triterpenes 尝试性地在从 963-cm-thick 泥炭拿的样品被分配了的 pentacyclic 的降级产品用煤气的层析团 spectrometry (GCMS ) 从东北中国的 Hani 区域定序以便理解并且识别这些 des-A-triterpenes 反应到气候和生态学。学习显示脂肪族的 des-A-triterpenes 充满 Hani 泥炭沼泽。高相对的许多全部的 des-A-triterpenes 主要在 Holocene 句号发生并且相应于低沉积率。des-A-triterpenes 累积的机制不与以前的研究一致。生物社区也是一个影响因素，这被建议。在整个顺序的全部的 des-A-triterpenes 的明显的阶段变化揭示不同生物(微生物和植物) 过程和回答，可能在 16000 cal 上在沼泽地环境揭示生物社区和功能的作文的四大代替 BP。低全部的 des-A-triterpenes 价值发生在大约 10200， 8700， 7700， 6600， 44803940 和 3040 cal BP，在 Holocene 期间在沼泽地的宏环境下面反映多重千年的微型环境摆动。diene 和 monoene des-A-triterpenes (DT/MT ) 的比率， des-A-lupane 和 diene 和 monoene des-A-triterpenes (DL/(DT+MT )) ，单个混合物的比率展出垂直反面到全部的 des-A-triterpenes。也就是，而他们在另外的时期是低的，这些比率在最后冰川的消失和迟了的 Holocene 期间高，显示不同混合物有对微型环境和微生物引起的活动的不同回答。这研究讨论到微型环境的生物社区和生物功能的作文反应的差异，它不仅在东北中国提供补充，而且以后为含意忍受重要基本信息到生态的环境。

英文摘要：

Aliphatic des-A-tfiterpenes, the degradation products of pentacyclic triterpenes have been tentatively assigned in samples taken from a 963-cm-thick peat sequence from the Hani region of Northeast China using gas chromatography-mass spectrometry （GC-MS） in order to understand and identify these des-A-triterpenes response to climate and ecology. The study indicates that aliphatic des-A-triterpenes are abundant in the Hani peat bog. The high relative abundance of the total des-A-triterpenes mainly occurs at the Holocene periods and is corresponding to the low sedimentation rate. The mechanism of des-A-triterpenes accumu- lation is not consistent with the previous studies. It is proposed that the biological community is also one influence factor. The obvious stage variations of the total des-A-triterpenes in the whole sequence reveal the different biological （microbes and plants） processes and responses, possibly revealing the four large replacements of biological community and functional composition in the swamp environment over the 16000 cal a BP. The low total des-A-triterpenes values occur at about 10200, 8700, 7700, 6600, 4480-3940 and 3040 cal a BP, reflecting the multiple millennial micro-environment oscillations under the macro-environment of the swamp during the Holocene. The ratios of diene and monoene des-A-triterpenes （DT/MT）, des-A-lupane and diene and monoene des-A-triterpenes （DL/（DT＋MT））, ratios of individual compounds exhibit vertical opposite to the total des-A-triterpenes. Namely, these ratios are high during the last deglaciation and late Holocene whereas they are low at other periods, indicating different compounds have different responses to micro-environment and microbial activities. This study discusses the diversity of biological community and biological functional composition response to micro-environment, which not only provides the com- plement in Northeast China, but also bears important fundamental information for the implication to ecological environment in the fu