Comment on: "Peatland carbon stocks and burn history: Blanket bog peat core evidence highlights charcoal impacts on peat physical properties and long-term carbon storage," by A. Heinemeyer, Q. Asena, W. L. Burn and A. L. Jones ( Geo: Geography and Environment 2018; e00063)
Comment on: "Peatland carbon stocks and burn history: Blanket bog peat core evidence highlights charcoal impacts on peat physical properties and long-term carbon storage," by A. Heinemeyer, Q. Asena, W. L. Burn and A. L. Jones ( Geo: Geography and Environment 2018; e00063)
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评论：“泥炭地碳储量和燃烧历史：一揽子沼泽泥炭核心证据强调了木炭对泥炭物理特性和长期碳储存的影响”，作者：A. Heinemeyer、Q. Asena、W. L. Burn 和 A. L. Jones（《地理：地理与地理》）
DOI：
10.1002/geo2.75
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Evans C
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文献类型：
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作者：
Evans C
海因迈耶等人最近在该杂志上发表的一篇论文(2018年)研究了有管理的燃烧对英格兰北部奔宁地区毯状泥炭地碳(C)平衡的影响。这项研究使用较短的泥炭岩心来比较三个地点最近的碳积累速率，这些地点受到不同频率的规定燃烧以管理松鸡沼泽。使用球状碳质颗粒(SCP)进行测年，他们得出结论，最频繁的燃烧地点具有最高的碳积累率。这归因于该场地较高的容重和木炭含量，从而得出结论，松鸡沼泽燃烧可能会将原本可分解的有机物转化为惰性物质，而木炭的存在可能会抑制分解者的活动。他们的发现的含义是--与大多数目前的理解相反--在英国松鸡沼泽管理的毯子沼泽上使用规定的火可能会对碳固存产生净效益。然而，我们认为这一结论是有缺陷的，因为与研究设计、方法和解释有关的一些问题。由于这些发现可能会对英国泥炭地使用规定火的土地管理政策产生重大影响，也许在其他地方也是如此，我们在这里提出了我们的担忧。
A recent paper in this journal by Heinemeyer et al.(2018) considered the effects of managed burning on the carbon (C) balance of blanket peatlands in the Pennines, northern England. The study used short peat cores to compare recent C accumulation rates between three sites subject to differing frequencies of prescribed burning for grouse moor management. Using spheroidal carbonaceous particles (SCPs) for dating, they concluded that the most frequently burned site had the highest rate of C accumulation. This was attributed to the higher bulk density and charcoal content of this site, leading to the conclusion that grouse moor burning may convert otherwise decomposable organic matter into inert material, and that the presence of charcoal may suppress decomposer activity. The implication of their findings would be that–contrary to most current understanding–the use of prescribed fire on the grouse‐moor‐managed blanket bogs of the UK could be net beneficial for C sequestration. We believe, however, that this conclusion is flawed, due to a number of problems related to the study design, methods, and interpretation. Since these findings could have significant consequences for land‐management policy regarding the use of prescribed fire on peatlands in the UK, and perhaps elsewhere, we set out our concerns here.