The addition of phenolic compounds to peatland soils has been proposed as a means of enhancing the suppression of enzymes, reducing the rate of organic matter decomposition and increasing below-ground carbon sequestration. This study evaluated the potential of phenolic enrichment as a peatland restoration strategy by adding wood chips from common tree species to peat substrate and determining the impacts on key components of organic matter decomposition and Sphagnum growth. All treatments tended to increase the concentration of phenolics and suppress the activities of β-glucosidase (measured as an indicator enzyme that plays a key role in cellulose decomposition), significantly so with the Spruce (Picea mariana) and Cedar (Thuja occidentalis) wood chips mixed into the peat. All substrate additions to the peat tended to reduce fluxes of carbon dioxide (CO2) and significantly more so with surface additions of Spruce and Larch (Larix laricina) wood chips. The addition of woodchips per se had no detrimental effect on Sphagnum growth for any of the treatments. These results indicate that through the addition of phenolic compounds to peatlands, it may be possible to inhibit extracellular enzyme activities in order to reduce the flux of CO2 from soils to the atmosphere. Thus, organic soil conditioning could reduce the carbon footprint for commercial activities such as Sphagnum culture.

中文翻译：

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使用低成本、富含酚类的生物质补充剂在泥炭地恢复过程中增强碳封存的潜在方法

已提出将酚类化合物添加到泥炭地土壤中作为增强酶抑制、降低有机物质分解速率和增加地下碳固存的一种手段。本研究通过将常见树种的木屑添加到泥炭基质中并确定对有机物分解和泥炭藓生长的关键成分的影响，评估了酚类富集作为泥炭地恢复策略的潜力。所有处理都倾向于增加酚类物质的浓度并抑制 β-葡糖苷酶（作为在纤维素分解中起关键作用的指示酶进行测量）的活性，云杉（Picea mariana）和雪松（Thuja occidentalis）木片的作用显着混入泥炭中。添加到泥炭中的所有基质都倾向于降低二氧化碳 (CO2) 的通量，并且在表面添加云杉和落叶松 (Larix laricina) 木片时更是如此。对于任何处理，添加木片本身对泥炭藓的生长没有不利影响。这些结果表明，通过向泥炭地中添加酚类化合物，可能会抑制细胞外酶的活性，从而减少从土壤到大气的 CO2 通量。因此，有机土壤调理可以减少商业活动（如泥炭藓培养）的碳足迹。这些结果表明，通过向泥炭地中添加酚类化合物，可能会抑制细胞外酶的活性，从而减少从土壤到大气的 CO2 通量。因此，有机土壤调理可以减少商业活动（如泥炭藓培养）的碳足迹。这些结果表明，通过向泥炭地中添加酚类化合物，可能会抑制细胞外酶的活性，从而减少从土壤到大气的 CO2 通量。因此，有机土壤调理可以减少商业活动（如泥炭藓培养）的碳足迹。