In the last 25 years, several degraded peatlands in eastern Canada have been restored toward their natural structure. Pools are common in natural peatlands and are important habitats for unique flora and fauna. Because of their ecological value, pools have been created in some restored peatland sites. Nevertheless, the biogeochemistry of created pools in a restoration context has seldom been studied. The objective of our study is to characterize the biogeochemistry of created pools from restored peatlands and compare them with natural pools along a chronosequence since their creation. We measured different biogeochemical variables (pH, concentrations of nitrogen (N), phosphorus (P), dissolved organic carbon (DOC), dissolved organic matter (DOM), base cations—calcium (Ca), sodium (Na), magnesium (Mg), and potassium (K)—and dissolved gases—methane (CH4), carbon dioxide (CO2), and nitrous oxide (N2O)‐) in 61 pools distributed over seven peatlands in eastern Canada. The sites represent a range of conditions, from natural to restored peatlands with pools ranging from 3 to 22 years old. Created and natural pools had distinctive biogeochemistry, with created pools being generally less acidic (pH >5) and 2.5 times more concentrated in nutrients (N and P) than in natural pools. DOC, N, P, dissolved gases, and base cations concentrations were lower in natural pools than in created pools, and varied between created sites. The oldest created pools (age >17 years) tend to approach the biogeochemical characteristics of natural pools, indicating that created pools may, over time, provide habitats with similar conditions to natural pools. A return of created pools to a natural pool‐like biogeochemistry could thus inform on the success of peatland restoration.

中文翻译：

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恢复提取的泥炭地时创建的水池是否与天然泥炭地水池相似？


在过去的 25 年里，加拿大东部的几片退化泥炭地已经恢复到自然结构。水池在天然泥炭地中很常见，是独特动植物的重要栖息地。由于它们的生态价值，在一些恢复的泥炭地遗址中建立了水池。然而，在恢复背景下，人工水池的生物地球化学很少被研究。我们研究的目的是描述从恢复的泥炭地中形成的水池的生物地球化学，并将它们与自创建以来沿时间序列的天然水池进行比较。我们测量了不同的生物地球化学变量（pH 值、氮 （N）、磷 （P）、溶解有机碳 （DOC）、溶解有机物 （DOM）、碱阳离子——钙 （Ca）、钠 （Na）、镁 （Mg） 和钾 （K）——和溶解气体——甲烷 （CH4）、二氧化碳 （CO2） 和一氧化二氮 （N2O）‐）在分布在加拿大东部七个泥炭地的 61 个水池中。这些地点代表了一系列条件，从天然泥炭地到恢复泥炭地，水池的树龄从 3 年到 22 年不等。人工池和天然池具有独特的生物地球化学，人工池的酸性通常较低 （pH >5），营养物质（N 和 P）的浓度是天然池的 2.5 倍。天然池中的 DOC、N、P、溶解气体和碱阳离子浓度低于已创建池，并且因已创建位置而异。最古老的人工水池（年龄 x3E17 年）往往接近自然水池的生物地球化学特征，这表明随着时间的推移，人工水池可能会提供与自然水池条件相似的栖息地。因此，将人工水池恢复到类似自然水池的生物地球化学可以证明泥炭地恢复的成功。