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首页> 外文期刊>Mires and Peat >High methane emissions from restored Norway spruce swamps in southern Finland over one growing season.
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High methane emissions from restored Norway spruce swamps in southern Finland over one growing season.

机译：经过恢复的挪威云杉沼泽在一个生长季节中产生的甲烷排放量很高。

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摘要

Forestry-drained peatlands in the boreal region are currently undergoing restoration in order to bring these ecosystems closer to their natural (undrained) state. Drainage affects the methane (CH4) dynamics of a peatland, often changing sites from CH4 sources to sinks. Successful restoration of a peatland would include restoration of not only the surface vegetation and hydrology, but also the microbial populations and thus CH4 dynamics. As a pilot study, CH4 emissions were measured on two pristine, two drained and three restored boreal spruce swamps in southern Finland for one growing season. Restoration was successful in the sense that the water table level in the restored sites was significantly higher than in the drained sites, but it was also slightly higher than in the pristine sites. The restored sites were surprisingly large sources of CH4 (mean emissions of 52.84 mg CH4 m-2 d-1), contrasting with both the pristine (1.51 mg CH4 m-2 d-1) and the drained sites (2.09 mg CH4 m-2 d-1). More research is needed to assess whether the high CH4 emissions observed in this study are representative of restored spruce mires in general.
机译：为了使这些生态系统更接近自然（不排水）状态，北方地区的森林排水的泥炭地目前正在进行恢复。排水会影响泥炭地的甲烷（CH 4 ）动态，通常会将站点从CH 4 的源头改变为汇。泥炭地的成功恢复不仅包括表层植被和水文学的恢复，还包括微生物种群的恢复，以及CH 4 动力学的恢复。作为一项初步研究，在芬兰南部一个生长季节中，在两个原始的，两个排水的和三个恢复的北方云杉沼泽中测量了CH 4 的排放。从恢复地点的地下水位明显高于排水地点的水平来看，恢复是成功的，但也比原始地点的地下水位略高。恢复的位置出奇地是CH 4 的大量来源（平均排放量为52.84 mg CH 4 m -2 d -1 ），与原始（1.51 mg CH 4 m -2 d -1 ）和引流部位（2.09 mg CH 4 m -2 d -1 ）。需要进行更多的研究来评估本研究中观察到的高CH 4 排放物是否总体上代表了云杉还原泥res。

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