In this study, Holocene humification records were derived from four ombrotrophic peatlands to investigate the millennial-scale and decadal-centennial-scale variability of peat decomposition and to explore the paleoclimatic and paleohydrological implications. After eliminating the species-specific and site-specific noise and removing the time-dependency effect for each of four peat sequences, the averaged residuals of four peat humification sequences exhibit two-order variations. The millennial-scale variation of averaged residuals of four peat humification is characterized by a bow-shaped curve and is basically moisture-dependent. In detail, the humification in the middle Holocene (~8200–~4000 cal. yr BP) was higher than in the early Holocene (before ~8200 cal. yr BP) and also than in the late Holocene (after ~4000 cal. yr BP). The decadal/centennial-scale variations are superimposed on the bow-shaped curve and have been primarily paced by the sea surface temperature in the North Atlantic whose signals were propagated to Central Asia via the prevailing westerlies, which implies that lower temperature and lower temperature-suppressed evaporation (i.e. elevated moisture level) were most likely responsible for limiting the decomposition activity in the uppermost peat layer. These results indicate the potential for humification records from ombrotrophic peatlands in Central Asia to elucidate paleoclimate variability.

在这项研究中，全新世的腐殖化记录来自四个粗养的泥炭地，以研究泥炭分解的千年尺度和年代百年尺度的变异性，并探讨古气候和古水文学的意义。在消除了四个泥炭序列中每个物种的物种特异性噪声和位点特异性噪声并消除了时间依赖性影响之后，四个泥炭腐殖化序列的平均残差表现出两个阶次变化。四个泥炭腐殖化的平均残留量的千禧年尺度变化以弓形曲线为特征，并且基本上与湿度相关。详细地讲，中全新世（〜8200–4000 cal.yr BP）的增韧高于早期全新世（〜8200 cal.yr BP之前），也比晚全新世（〜4000 cal.yr之后）高。 BP）。年代际/百年尺度的变化叠加在弓形曲线上，并且主要受到北大西洋海表温度的影响，北大西洋海表温度的信号通过盛行的西风传播到中亚，这意味着较低的温度和较低的温度-抑制蒸发（即升高的水分含量）最有可能限制了最上层泥炭层的分解活性。这些结果表明，从中亚的非营养营养泥炭地获得增产记录的潜力有可能阐明古气候的变异性。这意味着较低的温度和较低的温度抑制的蒸发（即升高的水分含量）最有可能限制了最上层泥炭层的分解活性。这些结果表明，从中亚的非营养营养泥炭地获得增产记录的潜力有可能阐明古气候的变异性。这意味着较低的温度和较低的温度抑制的蒸发（即升高的水分含量）最有可能限制了最上层泥炭层的分解活性。这些结果表明，从中亚的非营养营养泥炭地获得增产记录的潜力有可能阐明古气候的变异性。