Questioning ten common assumptions about peatlands
Questioning ten common assumptions about peatlands
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DOI：
10.19189/map.2016.omb.253
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发表时间：
2017-01-01
期刊：
影响因子：
1.2
通讯作者：
Young, D. M.
中科院分区：
文献类型：
--
作者：
Bacon, K. L.;Baird, A. J.;Young, D. M.
泥炭地的生态水文学、碳动力学、生态系统服务和古环境档案已得到广泛研究。然而，学术文献、从业者报告和大众媒体中经常对泥炭地做出一些假设，这些假设要么含糊不清，要么在某些情况下是错误的。在这里，我们讨论以下关于泥炭地的十个常见假设：1.北部泥炭地碳储量将在气候变暖的情况下减少；2.泥炭地是脆弱的生态系统；3.湿泥炭地的净碳积累率较高；4. 不同的规则适用于热带泥炭地；5. 泥炭地是单一土壤类型；6. 泥炭地的行为类似于海绵；7. 泥炭地是泥炭地的主要“生态系统工程师”；8. 单一核心提供了泥炭地的代表性古档案；9. 泥炭地的地下水位重建提供了过去气候变化的直接记录； 10.泥炭地的恢复导致其碳汇功能的重建。在每种情况下，我们都会考虑支持该假设的证据，并在适当的情况下，找出其缺点或可能产生误导的方式。
Peatlands have been widely studied in terms of their ecohydrology, carbon dynamics, ecosystem services and palaeoenvironmental archives. However, several assumptions are frequently made about peatlands in the academic literature, practitioner reports and the popular media which are either ambiguous or in some cases incorrect. Here we discuss the following ten common assumptions about peatlands:1.the northern peatland carbon store will shrink under a warming climate;2.peatlands are fragile ecosystems;3. wet peatlands have greater rates of net carbon accumulation;4.different rules apply to tropical peatlands;5.peat is a single soil type;6.peatlands behave like sponges;7.Sphagnum is the main 'ecosystem engineer' in peatlands;8.a single core provides a representative palaeo-archive from a peatland;9.water-table reconstructions from peatlands provide direct records of past climate change; and10.restoration of peatlands results in the re-establishment of their carbon sink function.In each case we consider the evidence supporting the assumption and, where appropriate, identify its shortcomings or ways in which it may be misleading.