泥炭沼泽

The study has shown:(1) With increasing sediment depth and the woody giblets, the total organic carbon, the extraction of benzene , the total humic acids and the unhydrolyte are enhanced, while the hydrolyte is decreasing.(2) According to the GC-MS analysis, n-alkane,n-alkan-2-ones and n-alkanones are composed mainly of long-chains,such a result is thought to be characteristic of a herbaceous input from 2300a.B.P. n-alkanones exist in the samples may be considered as the evidence of microorganisms activity.(3) It is showed that the lipids is more sensitive to the climate change than the floristic. The proxy of the pollen spore of the peat stratum is different from the normal environment proxy. It is one of the main reasons that the sensitivity difference of the bog vegetation reacting to the climate isn't accordant with the log of the fat molecule fossil and biology fossil.(4) The transformation of the peat organic carbon is under the influence of temperature,acidity,organic material constituting, etc, and it showed the up-trend with the depth. In the short-term scale, the conversion of the peat organic carbon is effected by seasonal water,regional climate and vegetations; while in the long-term scale, it is controlled mainly by the climate.(5) According to the comparing the orderliness of organic compound,vegetation giblets with the depth to the characteristics of the peat molecule fossil with the section, in the development of this peatmire, 1500a B.P（210cm）is regard as the borderline of the late Holocene, the keynote of the front period is warm with several cold fluctuations, and the trend of the back period is dry and cold although there were several fluctuations.

研究表明：（1）随深度的增高及植物残体中木本残体的增多，总有机碳、苯萃取物、总腐植酸、不被水解物含量逐渐增高，而易水解物含量减少；（2）GC- MS分析显示，正构烷烃，直链烷基2-酮和正烷醇均以长链组分为主，揭示了该泥炭柱剖面2347a.B.P的母源输入以草本植物为主；甲基酮类和短链正烷醇的存在是微生物活性很大的生物证据；（3）通过有机分子标志物与孢粉、植物残体等指标的对比研究表明：脂类化合物对气候变化的反映要比植物种灵敏得多，不同沼泽植物对气候变化的敏感性的差异是脂类分子化石记录与生物大化石结果很难一致的主要原因之一；（4）泥炭有机碳的转化受到温度、酸度、有机物质组成等很多因素的影响，短时间尺度，泥炭有机碳的转化受季节性降水、地方气候和植被等因素的影响；长时间尺度，泥炭地有机碳的转化，受气候条件控制；（5）总结泥炭分子化石特征、泥炭有机质各组分含量及植物残体组成随深度的变异规律，分析结果显示该泥炭地层形成过程中，1500a B.P（210cm）可作为划分前后晚全新世的界线，前期的基调是气候偏暖，但又有几次偏干冷气候的反复，后期气候以干冷为主，其间虽有几次上升波动，但整体趋势不变。

The article provided scientific basis for evaluating the purification value of the sphagnum wetland,and for protecting and using it reasonably in the future.

为评估泥炭藓沼泽湿地净水价值、保护和合理利用泥炭藓沼泽湿地提供科学依据。

No more than 20 paces away in the flat muskeg was a huge, black Alaskan timber wolf—caught in one of Trapper George's traps.

只见在那个平坦的泥炭沼泽中，距离不到20英尺的地方，有一头高大的阿拉斯加黑狼——被捕兽人乔治的一个夹子卡在了那里。

The Council's conservation campaigns include purchasing bogland nature reserves, providing resources and training on bogs for children, adults and teachers, repairing damaged bogs, fostering a positive attitude towards peatlands, and encouraging ecologically sustainable lifestyles.

协会保护运动主要有：成立泥炭地自然保护区、提供资源和为公众进行义务教育、恢复破坏沼泽、培养对泥炭地的正确态度以及鼓励生态系统可持续发展等。

He found a few others: a sphagnum moss peat bog can repel the invasion of pine trees for thousands of years.

他还发现：几千年来，水藓泥炭沼泽抵制了松树的入侵。

Coal accumulation occurs mainly in peat paleo-bog and is also a key link during the sedimentation of coal-bearing strata.

古泥炭沼泽是煤聚集的主要场所，也是含煤地层沉积过程的重要环节。

The emerged James Bay Lowland is covered by vast and flat peatlands of peat deposits with thickness up to 3 to 4 m within the inland fens and raised bogs.

詹姆斯湾的出现低地所覆盖辽阔平坦泥炭地泥炭沉积厚度高达3至4米的内陆沼泽地，并提出沼泽。

If proposed expansion proceeds,it will result in the loss of vast tracts of boreal forest and peat bogs of a territory the size of England

如果继续执行扩张计划，将导致面积相当于英国的北方森林和泥炭沼泽的丧失。

The complex balance between nature and human needs is also an issue in Poland's Rospuda Valley, which winds through vast tracks of primeval forest, peat bogs and wetlands.

大自然与人的需要复杂的平衡也是在波兰的罗斯普达河流域，问题，通过原始森林，泥炭沼泽和湿地广阔轨道风。

The carbon-accumulation environment and process in peatlands is one of main subjects in peatland science.

中文题名三江平原泥炭地聚碳环境和聚碳过程研究副题名外文题名 Study on carbon-accumulation environment and process of peatlands in Sanjiang plain 论文作者孟宪民导师刘兴土研究员学科专业环境科学研究领域\研究方向湿地环境学位级别博士学位授予单位中国科学院东北地理与农业生态研究所学位授予日期2002 论文页码总数93页关键词泥炭地学沼泽全球变化聚碳过程聚碳环境馆藏号BSLW /2003 /X171 /22 泥炭地聚碳环境和聚碳过程是泥炭地学研究的核心内容之一。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。